Use address-family ipv6 sr-policy to create the BGP IPv6 SR policy address family and enter its view, or enter the view of the existing BGP IPv6 SR policy address family.

Use undo address-family ipv6 sr-policy to delete the BGP IPv6 SR policy address family and all the configuration in the BGP IPv6 SR policy address family.

Syntax

address-family ipv6 sr-policy

undo address-family ipv6 sr-policy

Default

The BGP IPv6 SR policy address family does not exist.

Views

BGP instance view

Predefined user roles

network-admin

Usage guidelines

The configuration in BGP IPv6 SR policy address family view applies only to routes and peers in the BGP IPv6 SR policy address family.

Examples

# In BGP instance view, create the BGP IPv6 SR policy address family and enter its view.

<Sysname> system-view

[Sysname] bgp 100

[Sysname-bgp-default] address-family ipv6 sr-policy

[Sysname-bgp-default-srpolicy-ipv6]

advertise ebgp enable

Use advertise ebgp enable to enable advertising BGP IPv6 SR policy routes to EBGP peers.

Use undo advertise ebgp enable to restore the default.

Syntax

advertise ebgp enable

undo advertise ebgp enable

Default

BGP IPv6 SR policy routes are not advertised to EBGP peers.

Views

BGP IPv6 SR policy address family view

Predefined user roles

network-admin

Usage guidelines

By default, BGP IPv6 SR policy routes are advertised among IBGP peers. To advertise BGP IPv6 SR policy routes to EBGP peers, you must execute this command to enable the advertisement capability.

Examples

# Enable advertising BGP IPv6 SR policy routes to EBGP peers.

<Sysname> system-view

[Sysname] bgp 100

[Sysname-bgp-default] address ipv6 sr-policy

[Sysname-bgp-default-srpolicy-ipv6] advertise ebgp enable

autoroute enable

Use autoroute enable to enable automatic route advertisement for an SRv6 TE policy.

Use undo autoroute enable to disable automatic route advertisement for an SRv6 TE policy.

Syntax

autoroute enable [ isis | ospfv3 ]

undo autoroute enable

Default

Automatic route advertisement is disabled for an SRv6 TE policy.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

isis: Enables automatic route advertisement for IPv6 IS-IS.

ospfv3: Enables automatic route advertisement for OSPFv3.

Usage guidelines

The automatic route advertisement feature advertises an SRv6 TE policy to IGP (IPv6 IS-IS or OSPFv3) for route computation.

An SRv6 TE policy supports only automatic route advertisement in IGP shortcut mode, which is also called autoroute announce. Autoroute announce regards the SRv6 TE policy tunnel as a link that connects the tunnel ingress and egress. The tunnel ingress includes the SRv6 TE policy tunnel in IGP route computation.

If you do not specify the isis or ospfv3 keyword, both OSPFv3 and IPv6 IS-IS will include the SRv6 TE policy tunnel in route computation.

Examples

# Enable automatic route advertisement for an SRv6 TE policy.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy srv6policy

[Sysname-srv6-te-policy-srv6policy] autoroute enable

Related commands

autoroute metric

Use autoroute metric to configure an autoroute metric for an SRv6 TE policy.

Use undo autoroute metric to restore the default.

Syntax

autoroute metric { absolute value | relative value }

undo autoroute metric

Default

The autoroute metric of an SRv6 TE policy equals its IGP metric.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

absolute value: Specifies an absolute metric, an integer in the range of 1 to 65535.

relative value: Specifies a relative metric, an integer in the range of –10 to +10. The specified relative metric plus the IGP metric is the actual metric of the SRv6 TE policy.

Usage guidelines

After automatic route advertisement is enabled for an SRv6 TE policy, the policy is included in IGP route computation as a link. You can use this command to configure the metric of this link used for IGP route computation.

Examples

# Set an absolute metric of 15 for SRv6 TE policy srv6policy.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy srv6policy

[Sysname-srv6-te-policy-srv6policy] autoroute metric absolute 15

Related commands

autoroute enable

backup hot-standby

Use backup hot-standby to configure hot standby for an SRv6 TE policy.

Use undo backup hot-standby to restore the default.

Syntax

backup hot-standby { disable | enable }[ multilevel-backup ] }

undo backup hot-standby

Default

Hot standby is not configured for an SRv6 TE policy.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

disable: Disables hot standby for the SRv6 TE policy.

enable: Enables hot standby for the SRv6 TE policy.

multilevel-backup: Enables multilevel hot standby for the SRv6 TE policy. With this feature enabled, the candidate path with the third highest preference in the policy is used as the secondary backup path. If you do not specify this keyword, the SRv6 TE policy only has one main path and one backup path.

Usage guidelines

When the hot standby feature is enabled, the numbers of the main and backup paths depend on the configuration.

If the multilevel hot standby feature is enabled without the multilevel-backup keyword, the candidate path with the greatest preference value in the SRv6 TE policy is the main path and that with the second greatest preference value is the backup path. When all SID lists of the mail path fail, the backup path immediately takes over the service to minimize service interruption.

If the multilevel hot standby feature is enabled with the multilevel-backup keyword, a secondary backup path is also provided for the main path besides the backup path. The secondary backup path is the candidate path with the third highest preference in the SR-MPLS TE policy. When all SID lists of the mail path fail, the backup path immediately takes over the service. If the backup path fails, too, the secondary backup path takes over the service to minimize service interruption.

You can enable hot standby for all SRv6 TE policies globally in SRv6 TE view or for a specific SRv6 TE policy in SRv6 TE policy view. The policy-specific configuration takes precedence over the global configuration. An SRv6 TE policy uses the global configuration only when it has no policy-specific configuration.

Examples

# Enable hot standby for SRv6 TE policy 1.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] backup hot-standby enable

Related commands

srv6-policy backup hot-standby enable

best-effort default

Use best-effort default to enable SRv6 BE forwarding for packets that do not match a color-to-DSCP mapping.

Use undo best-effort default to restore the default.

Syntax

best-effort { ipv4 | ipv6 } default

undo best-effort { ipv4 | ipv6 } default

Default

The device does not perform SRv6 BE forwarding for packets that do not match a color-to-DSCP mapping.

Views

SRv6 TE policy group view

Predefined user roles

network-admin

parameters

ipv4: Enables SRv6 BE forwarding for IPv4 packets that do not match a color-to-DSCP mapping.

ipv6: Enables SRv6 BE forwarding for IPv6 packets that do not match a color-to-DSCP mapping.

Usage guidelines

In networks that use DSCP-based traffic steering, you can execute this command to enable SRv6 BE forwarding for packets that do not match a color-to-DSCP mapping.

When the device receives an IPv4 or IPv6 packet that does not match any color-to-DSCP mapping, the device selects a valid SRv6 TE policy for the packet in the following order:

1. The default SRv6 TE policy specified for the same address family as the packet.

2. Valid SRv6 BE tunnel enabled for forwarding packets that do not match a color-to-DSCP mapping in the same address family.

3. The default SRv6 TE policy specified for the other address family.

4. Valid SRv6 BE tunnel enabled for forwarding packets that do not match a color-to-DSCP mapping in the other address family.

5. The SRv6 TE policy mapped to the smallest DSCP value in the same address family as the packet.

6. The SRv6 TE policy mapped to the smallest DSCP value in the other address family.

Examples

# Enable SRv6 BE forwarding for IPv4 packets that do not match a color-to-DSCP mapping in SRv6 TE policy group 10.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy-group 10

[Sysname-srv6-te-policy-group-10] best-effort ipv4 default

Related commands

color match dscp

bestroute encap-type

Use bestroute encap-type to specify the packet encapsulation type preferred in optimal route selection.

Use undo bestroute encap-type to restore the default.

Syntax

bestroute encap-type { mpls | srv6 } [ preferred ]

undo bestroute encap-type

Default

The device does not select optimal routes according to the packet encapsulation type.

Views

BGP-VPN instance view.

Predefined user roles

network-admin

Parameters

mpls: Prefers to use MPLS-encapsulated routes during optimal route selection.

srv6: Prefers to use SRv6-encapsulated routes during optimal route selection.

preferred: With this keyword specified, the optimal route selection rule configured by this command is used after the rule of preferring the route with the highest Preferred-value and before the rule of preferring the route with the highest LOCAL_PREF value. If you do not specify this keyword, the rule configured by this command is used after the rule of preferring the route with the highest LOCAL_PREF value and before the rule of selecting a route in descending order of route generated by the network command, route redistributed by the import-route command, and aggregate route.

Usage guidelines

If you configure both the bestroute encap-type preferred command and the bestroute nexthop-type preferred command, BGP selects the optimal route in the VPN instance by using the following procedure:

1. Drops the route with an unreachable NEXT_HOP.

2. Selects the route with the highest Preferred-value.

3. Uses the optimal route selection rule configured by the bestroute encap-type command: prefers to use an MPLS-encapsulated or SRv6-encapsulated route.

4. Uses the optimal route selection rule configured by the bestroute nexthop-type command: prefers to use a route whose next hop is an IP address or a tunnel.

5. Selects the route with the highest LOCAL_PREF.

6. Proceeds to the subsequent steps in the original BGP route select procedure.

For more information about BGP route selection, see BGP overview in Layer 3—IP Routing Configuration Guide.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Configure BGP to prefer SRv6-encapsulated routes during optimal route selection.

<Sysname> system-view

[Sysname] bgp 100

[Sysname-bgp-default] ip vpn-instance vpn1

[Sysname-bgp-default-vpn1] bestroute encap-type srv6

Related commands

bestroute nexthop-type (Layer 3—IP Routing Command Reference)

bfd echo

Use bfd echo to configure the echo packet mode BFD for an SRv6 TE policy.

Use undo bfd echo to restore the default.

Syntax

bfd echo { disable | enable [ source-ip ipv4-address | source-ipv6 ipv6-address ] [ template template-name ] [ backup-template backup-template-name ] [ oam-sid sid ] }[ encaps | insert ] }

undo bfd echo

Default

The echo packet mode BFD is not configured for an SRv6 TE policy. An SRv6 TE policy uses the echo BFD settings configured in SRv6 TE view.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

disable: Disables the echo packet mode BFD for the SRv6 TE policy.

enable: Enables the echo packet mode BFD for the SRv6 TE policy.

source-ip ipv4-address: Specifies the source IPv4 address of the BFD session. If you do not specify this option, the configuration in SRv6 TE view applies. Specify this option when the endpoint address of the SRv6 TE policy is an IPv4 address. This option is supported only in R5212P01 and later.

source-ipv6 ipv6-address: Specifies the source IPv6 address of the BFD session. If you do not specify this option, the configuration in SRv6 TE view applies. Specify this option when the endpoint address of the SRv6 TE policy is an IPv6 address.

template template-name: Specifies a BFD session parameter template by its name, a case-sensitive string of 1 to 63 characters. If you do not specify this option, the template specified in SRv6 TE view applies.

backup-template backup-template-name e: Specifies a BFD session parameter template for the backup SID list. The backup-template-name argument indicates the template name, a case-sensitive string of 1 to 63 characters. If you do not specify this option, the backup template specified in SRv6 TE view applies.

oam-sid sid: Adds an OAM SID to BFD packets to identify the destination node. The sid argument represents the SRv6 SID of the destination node. If you do not specify this option, no OAM SID will be added to BFD packets. At present, the OAM SID must be set to the End.OP SID of the destination node.

encaps: Uses the normal encapsulation mode to encapsulate BFD packets.

insert: Uses the insertion mode to encapsulate BFD packets.

Usage guidelines

To use echo BFD to detect an SRv6 TE policy, the device must encapsulate the SID list of the SRv6 TE policy for the BFD packets. The following encapsulation modes are available:

· Encaps—Normal encapsulation mode. It adds a new IPv6 header and an SRH to the original packets. All SIDs in the SID list of the SRv6 TE policy are encapsulated in the SRH. The destination IPv6 address in the new IPv6 header is the first IPv6 address in the SID list of the SRv6 TE policy. The source IPv6 address is the IPv6 address specified using the encapsulation source-address command in SRv6 view.

· Insert—Insertion mode. It inserts an SRH after the original IPv6 header. All SIDs in the SID list of the SRv6 TE policy are encapsulated in the SRH. The destination IPv6 address in the original IPv6 header changes to the first IPv6 address in the SID list of the SRv6 TE policy. The source IPv6 address in the original BFD echo packet does not change.

If you do not specify the encaps or insert keyword, the encapsulation mode configured by the bfd srv6-encapsulation-mode encap command applies.

You can configure the echo packet mode BFD for all SRv6 TE policies globally in SRv6 TE view or for a specific SRv6 TE policy in SRv6 TE policy view. The policy-specific configuration takes precedence over the global configuration. An SRv6 TE policy uses the global configuration only when it has no policy-specific configuration.

If you do not specify the source-ip ipv4-address or source-ipv6 ipv6-address option in this command for an SRv6 TE policy, you must enable the echo packet mode BFD globally in SRv6 TE view. Otherwise, the device cannot establish a BFD session for the SRv6 TE policy.

The device supports the echo packet mode BFD and the SBFD for an SRv6 TE policy. If both modes are configured for the same SRv6 TE policy, the SBFD takes effect.

Before you execute this command, execute the bfd echo-source-ip or bfd echo-source-ipv6 command on the local device to specify the source IPv6 address for echo packets.

When BFD echo packets use an IPv4 address as the source address, they can only be encapsulated using the Encaps method, and the insert parameter specified in this command will not take effect. When the system encapsulates such a packet, it adds an IPv4 packet header after the IPv6 packet header, and uses the specified IPv4 destination address as the destination address of the IPv4 packet header.

Examples

# Enable the echo packet mode BFD for SRv6 TE policy 1, and specify the source IPv6 address of the BFD session as 11::11.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] bfd echo enable source-ipv6 11::11

Related commands

bfd srv6-encapsulation-mode encaps (High Availability Command Reference)

bfd echo-source-ip (High Availability Command Reference)

bfd echo-source-ipv6 (High Availability Command Reference)

display segment-routing ipv6 te bfd

srv6-policy bfd echo

bfd srv6-encapsulation-mode

Use bfd srv6-encapsulation-mode encap to configure the encapsulation mode for the BFD or SBFD packets used for SRv6 forwarding paths connectivity detection.

Use undo bfd srv6-encapsulation-mode to restore the default.

Syntax

bfd srv6-encapsulation-mode insert [ no-endpoint ]

undo bfd srv6-encapsulation-mode insert [ no-endpoint ]

Default

The encapsulation mode is Encap.

Views

System view

Predefined user roles

network-admin

Parameters

insert: Encapsulates BFD or SBFD packets in Insert mode.

no-endpoint: Encapsulates SBFD packets in Insert no-endpoint mode. In this mode, the SID list inserted into the SRH does not contain the endpoint in an SRv6 TE policy. If you do not specify this keyword, SBFD packets are encapsulated in Insert with endpoint mode. This keyword takes effect only on SBFD packets encapsulated in Insert mode.

Usage guidelines

To use echo BFD to detect the connectivity of an SRv6 TE policy, the device must encapsulate the SID list of the SRv6 TE policy for the BFD packets. The following encapsulation modes are available:

· Insert—Insertion mode. It inserts an SRH between the basic IPv6 header and the BFD/SBFD packet. The SRH contains the SID list of the SRv6 TE policy. If the SID list length is 0, no SRH will be inserted.

· Encap—Normal encapsulation mode. It adds a new IPv6 header and an SRH to the original packets. The SRH contains the SID list of the SRv6 TE policy. If the SID list length is 0, no SRH will be inserted.

To use SBFD to detect the connectivity of an SRv6 TE policy, the device must encapsulate the SID list of the SRv6 TE policy for the SBFD packets. The following encapsulation modes are available:

· Insert with endpoint—This mode inserts an SRH between the basic IPv6 header and the SBFD packet. The SRH contains the SID list and endpoint of the SRv6 TE policy.

· Insert no-endpoint—This mode inserts an SRH between the basic IPv6 header and the SBFD packet. The SRH contains the SID list but not the endpoint of the SRv6 TE policy.

The new encapsulation mode does not take effect immediately after you use this command to switch the encapsulation mode if a BFD or SBFD session has been established successfully. You must first disable BFD or SBFD for the SRv6 TE policy by specifying the disable keyword in the bfd echo or sbfd command and then enable BFD or SBFD for the SRv6 TE policy.

Examples

# Configure the device to use the Encap mode to encapsulate the BFD or SBFD packets for SRv6 forwarding paths connectivity detection.

<Sysname> system-view

[Sysname] bfd srv6-encapsulation-mode encap

Related commands

bfd echo

sbfd

bfd trigger path-down

Use bfd trigger path-down to enable BFD session down events to trigger SRv6 TE policy path switchover.

Use undo bfd trigger path-down to disable BFD session down events from triggering SRv6 TE policy path switchover.

Syntax

bfd trigger path-down { disable | enable }

undo bfd trigger path-down

Default

The feature for triggering SRv6 TE policy path switchover by BFD session down events is not configured. The configuration in SRv6 TE view applies.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

disable: Disables BFD session down events from triggering SRv6 TE policy path switchover.

enable: Enables BFD session down events to trigger SRv6 TE policy path switchover.

Usage guidelines

By default, when the SRv6 TE policy has multiple valid candidate paths, the following conditions exist:

· If the hot standby feature is disabled, BFD or SBFD detects all SID lists for only the optimal valid candidate path of the SRv6 TE policy. The device establishes a BFD or SBFD session for each SID list. When all BFD or SBFD sessions go down, the SRv6 TE policy will not select other valid candidate paths, and the device will not forward packets through the SRv6 TE policy.

· If the hot standby feature is enabled, BFD or SBFD detects all SID lists for the primary and backup paths of the SRv6 TE policy. The device establishes a BFD or SBFD session for each SID list.

¡ If all BFD or SBFD sessions for the primary path go down, the SRv6 TE policy will use the backup path to forward packets without reselecting other valid candidate paths.

¡ If all BFD or SBFD sessions for the primary and backup paths go down, the SRv6 TE policy will not select other valid candidate paths, and the device will not forward packets through the SRv6 TE policy.

If you enable BFD session down events to trigger SRv6 TE policy path switchover, the following conditions exist when the SRv6 TE policy has multiple valid candidate paths:

· If the hot standby feature is disabled, BFD or SBFD detects all SID lists for only the optimal valid candidate path of the SRv6 TE policy. The device establishes a BFD or SBFD session for each SID list. When all BFD or SBFD sessions go down, the SRv6 TE policy will reselect other valid candidate paths for packet forwarding. If no valid candidate paths are available for the SRv6 TE policy, the device cannot forward packets through the SRv6 TE policy.

· If the hot standby feature is enabled, BFD or SBFD detects all SID lists for the primary and backup paths of the SRv6 TE policy. The device establishes a BFD or SBFD session for each SID list.

¡ If all BFD or SBFD sessions for the primary path go down, the SRv6 TE policy will use the backup path to forward packets, and reselect the primary and backup paths.

¡ If all BFD or SBFD sessions for the primary and backup paths go down, the SRv6 TE policy will reselect other valid candidate paths as the primary and backup paths. The device will forward packets through the new primary path of the SRv6 TE policy.

· During optimal path reselection, if no valid candidate paths are available for the SRv6 TE policy, the device cannot forward packets through the SRv6 TE policy.

Before you enable this feature for an SRv6 TE policy, create a BFD or SBFD session for the policy first.

You can configure BFD session down events to trigger SRv6 TE policy path switchover for all SRv6 TE policies globally in SRv6 TE view or for a specific SRv6 TE policy in SRv6 TE policy view. The policy-specific configuration takes precedence over the global configuration. An SRv6 TE policy uses the global configuration only when it has no policy-specific configuration.

Examples

# Enable BFD session down events to trigger path switchover for SRv6 TE policy a1.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy a1

[Sysname-srv6-te-policy-a1] bfd trigger path-down enable

Related commands

bfd echo

sbfd

srv6-policy bfd echo

srv6-policy sbfd

binding-sid

Use binding-sid to configure a BSID for an SRv6 TE policy.

Use undo binding-sid to delete the BSID.

Syntax

binding-sid ipv6 ipv6-address

undo binding-sid

Default

No BSID is configured for an SRv6 TE policy.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

ipv6 ipv6-address: Specifies the BSID value, which is an IPv6 address.

Usage guidelines

You can use this command to manually configure a BSID for an SRv6 TE policy or leave the SRv6 TE policy to obtain a BSID automatically. If an SRv6 TE policy has only color and endpoint configuration, the SRv6 TE policy will automatically request a BSID.

The manually configured BSID has a higher priority over the automatically obtained BSID.

The BSID configured by this command must be on the locator specified for SRv6 TE policies in SRv6 TE view. Otherwise, the SRv6 TE policy cannot forward packets.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Set the BSID of SRv6 TE policy srv6policy to 1000::1.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic engineering

[Sysname-srv6-te] policy srv6policy

[Sysname-srv6-te-policy-srv6policy] binding-sid ipv6 1000::1

candidate-paths

Use candidate-paths to create and enter the candidate path view for an SRv6 TE policy, or enter the existing SRv6 TE policy candidate path view.

Use undo candidate-paths to delete the SRv6 TE policy candidate path view and all the configurations in the view.

Syntax

candidate-paths

undo candidate-paths

Default

The candidate path view for an SRv6 TE policy does not exist.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Examples

# Create the SRv6 TE policy candidate paths instance and enter its view.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy srv6policy

[Sysname-srv6-te-policy-srv6policy] candidate-paths

[Sysname-srv6-te-policy-srv6policy-path]

color end-point

Use color end-point to configure the color and endpoint attributes of an SRv6 TE policy.

Use undo color to delete the color and endpoint settings of an SRv6 TE policy.

Syntax

color color-value end-point ipv6 ipv6-address{ ipv4 ipv4-address | ipv6 ipv6-address }

undo color

Default

The color and endpoint attributes of an SRv6 TE policy are not configured.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

color-value: Specifies the color attribute value, in the range of 0 to 4294967295.

ipv4 ipv4-address: Specifies the endpoint IPv4 address. This option is supported only in R5212P01 and later.

ipv6 ipv6-address: Specifies the endpoint IPv6 address.

Usage guidelines

If you execute this command multiple times, the most recent configuration takes effect.

Different SRv6 TE policies cannot have the same color or endpoint address.

Examples

# Configure the color as 20 and endpoint IPv6 address as 1000::1 for SRv6 TE policy srv6policy.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy srv6policy

[Sysname-srv6-te-policy-srv6policy] color 20 end-point ipv6 1000::1

color match dscp (SRv6 TE Policy group view)

Use color match dscp to create color-to-DSCP mappings for an SRv6 TE policy group.

Use undo color match dscp to delete color-to-DSCP mappings for the SRv6 TE policy group.

Syntax

color color-value match dscp { ipv4 | ipv6 } dscp-value-list

undo color color-value match dscp { ipv4 | ipv6 } dscp-value-list

color color-value match dscp { ipv4 | ipv6 } default

undo color color-value match dscp { ipv4 | ipv6 } [ default ]

Default

No color-to-DSCP mappings are created for an SRv6 TE policy group.

Views

SRv6 TE policy group view

Predefined user roles

network-admin

Parameters

color-value: Specifies the color attribute value of an SRv6 TE policy, in the range of 0 to 4294967295.

ipv4: Specifies DSCP values of IPv4 packets.

ipv6: Specifies DSCP values of IPv6 packets.

dscp-value-list: Specifies a space-separated list of up to 32 DSCP value items. Each item specifies a DSCP value in the range of 0 to 63 or a range of DSCP values in the form of dscp-value1 to dscp-value2. The value for the dscp-value2 argument must be greater than or equal to the value for the dscp-value1 argument.

default: Configures a default color-to-DSCP mapping. Packets that do not match any mappings are steered to the default SRv6 TE policy (the policy specified in the default mapping).

Usage guidelines

You can map the color values of only valid SRv6 TE policies to DSCP values.

You can configure color-to-DSCP mappings separately for the IPv4 address family and IPv6 address family. For a specific address family, a DSCP value can be mapped to only one color value.

Use the color match dscp default command to specify the default SRv6 TE policy for an address family. If no SRv6 TE policy in an SRv6 TE policy group matches a specific DSCP value, the default SRv6 TE policy is used to forward packets containing the DSCP value. Only one default SRv6 TE policy can be specified for an address family.

When the device receives an IPv4 or IPv6 packet that does not match any color-to-DSCP mapping, the device selects a valid SRv6 TE policy for the packet in the following order:

1. The default SRv6 TE policy specified for the same address family as the packet.

2. Valid SRv6 BE tunnel enabled for forwarding packets that do not match a color-to-DSCP mapping in the same address family.

3. The default SRv6 TE policy specified for the other address family.

4. Valid SRv6 BE tunnel enabled for forwarding packets that do not match a color-to-DSCP mapping in the other address family.

5. The SRv6 TE policy mapped to the smallest DSCP value in the same address family as the packet.

6. The SRv6 TE policy mapped to the smallest DSCP value in the other address family.

Examples

# In SRv6 TE policy group 10, map DSCP value 30 to color value 20 for IPv4 packets, so that IPv4 packets with a matching DSCP value are steered to the associated SRv6 TE policy.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy-group 10

[Sysname-srv6-te-policy-group-10] color 20 match dscp ipv4 30

default-color (public instance IPv4/IPv6 address family view)

Use default-color to configure a default color value for public route recursion to an SRv6 TE policy.

Use undo default-color to restore the default.

Syntax

default-color color-value

undo default-color

Default

No default color value is configured.

Views

Public instance IPv4 address family view

Public instance IPv6 address family view

Predefined user roles

network-admin

Parameters

color-value: Specifies the default color value in the range of 0 to 4294967295.

Usage guidelines

The local PE uses the default color value to match an SRv6 TE policy for a received public network route if the route does not carry a color extended community and no color is added to the route through a routing policy.

This command applies only to the public network routes learned from a remote PE.

The default color value configured by this command is used only for SRv6 TE policy traffic steering. It is not used in route advertisement.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# In public instance IPv4 address family view, set the default color to 100 for public network route recursion to an SRv6 TE policy.

<Sysname> system-view

[Sysname] ip public-instance

[Sysname-public-instance] address-family ipv4

[Sysname-public-instance-ipv4] default-color 100

default-color (VPN instance IPv4/IPv6 address family view)

Use default-color to configure a default color value for L3VPN route recursion to an SRv6 TE policy.

Use undo default-color to restore the default.

Syntax

default-color color-value [ evpn ]

undo default-color [ evpn ]

Default

No default color value is configured.

Views

VPN instance IPv4 address family view

VPN instance IPv6 address family view

Predefined user roles

network-admin

Parameters

color-value: Specifies the default color value in the range of 0 to 4294967295.

evpn: Specifies the EVPN L3VPN service. If you do not specify this keyword, the default color applies to MPLS L3VPN route recursion to an SRv6 TE policy.

Usage guidelines

The local PE uses the default color value to match an SRv6 TE policy for a received VPNv4, VPNv6, or EVPN IP prefix route if the route does not carry a color extended community and no color is added to the route through a routing policy.

This command applies only to the VPN routes learned from a remote PE.

The default color value configured by this command is used only for SRv6 TE policy traffic steering. It does not used in route advertisement.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# In IPv4 address family view for VPN instance vpn1, set the default color to 100 for EVPN L3VPN route recursion to an SRv6 TE policy.

<Sysname> system-view

[Sysname] ip vpn-instance vpn1

[Sysname-vpn-instance-vpn1] address-family ipv4

[Sysname-vpn-ipv4-vpn1] default-color 100 evpn

delete-delay

Use delete-delay to configure the deletion delay time for SRv6 TE policies generated by ODN templates.

Use undo delete-delay to restore the default.

Syntax

delete-delay delay-time

undo delete-delay

Default

The deletion delay time for SRv6 TE policies generated by ODN templates is 180000 milliseconds.

Views

SRv6-TE-ODN view

Predefined user roles

network-admin

Parameters

delay-time: Specifies the deletion delay time, in the range of 0 to 600000 milliseconds.

Usage guidelines

ODN automatically creates an SRv6 TE policy based on the specified BGP route. The SRv6 TE policy is deleted immediately when the BGP route is deleted. To avoid packet loss before the new forwarding path is computed, you can use this command to configure a proper deletion delay time for the SRv6 TE policy.

Examples

# Set the deletion delay time to 300000 milliseconds for SRv6 TE policies generated by ODN templates.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] on-demand color 1

[Sysname-srv6-te-odn-1] delete-delay 300000

display bgp routing-table ipv6 sr-policy

Use display bgp routing-table ipv6 sr-policy to display route information of a BGP BGP IPv6 SR policy.

Syntax

display bgp [ instance instance-name ] routing-table ipv6 sr-policy [ sr-policy-prefix [ advertise-info | as-path | cluster-list | community | ext-community ] | { color color-value | end-point ipv6 ipv6-address } * | peer ipv6-address { advertised-routes | received-routes } [ statistics ] [ color color-value | end-point ipv6 ipv6-address ] * | statistics [ color color-value | end-point ipv6 ipv6-address ] * ]

display bgp [ instance instance-name ] routing-table ipv6 sr-policy [ statistics ] community [ community-number&<1-32> | aa:nn&<1-32> ] [ internet | no-advertise | no-export | no-export-subconfed ] [ whole-match ]

display bgp [ instance instance-name ] routing-table ipv6 sr-policy [ statistics ] community-list { basic-community-list-number | comm-list-name | adv-community-list-number } [ whole-match ]

display bgp [ instance instance-name ] routing-table ipv6 sr-policy [ statistics ] ext-community [ bandwidth link-bandwidth-value | color color | rt route-target | soo site-of-origin ]&<1-32> [ whole-match ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

instance instance-name: Specifies a BGP instance by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a BGP instance, this command displays information about the default instance.

sr-policy-prefix: Specifies a BGP IPv6 SR policy route prefix, which is a case-insensitive string of 1 to 512 characters in the format of SRv6 TE policy route/prefix length.

color color-value: Specifies the color attribute value of a BGP IPv6 SR policy, in the range of 0 to 4294967295.

end-point ipv6 ipv6-address: Specifies the endpoint IPv6 address of a BGP IPv6 SR policy.

advertise-info: Displays advertisement information about BGP IPv6 SR policy routes.

as-path: Specifies the AS_PATH attribute information of the specified BGP IPv6 SR policy route.

cluster-list: Specifies the cluster ID list attribute information of the specified BGP IPv6 SR policy route.

community: Specifies the community attribute information of the specified BGP IPv6 SR policy route or the BGP IPv6 SR policy route information matching the specified community number.

ext-community: Specifies the extended community attribute information of the specified BGP IPv6 SR policy route or the BGP IPv6 SR policy route information matching the specified extended community attribute.

peer ipv6-address: Specifies a peer by its IPv6 address.

advertised-routes: Displays detailed information about the BGP IPv6 SR policy routes advertised to the specified peer.

received-routes: Displays detailed information about the BGP IPv6 SR policy routes received from the specified peer.

statistics: Displays route statistics.

community-number&<1-32>: Specifies a list of up to 32 community sequence numbers. The value range for the community-number argument is 1 to 4294967295.

aa:nn&<1-32>: Specifies a list of up to 32 community numbers. The value range for the aa and nn arguments is 0 to 65535.

internet: Specifies the Internet community attribute. By default, all routes belong to the Internet community. Routes with this attribute can be advertised to all BGP peers.

no-advertise: Specifies the NO_ADVERTISE community attribute. Routes with this attribute cannot be advertised to other BGP peers.

no-export: Specifies the NO_EXPORT community attribute. Routes with this attribute cannot be advertised out of the local AS or out of the local confederation, but can be advertised to other sub-ASs in the confederation.

no-export-subconfed: Specifies the NO_EXPORT_SUBCONFED community attribute. Routes with this attribute cannot be advertised out of the local AS or other sub-ASs in the local confederation.

whole-match: Displays routes exactly matching the specified community list, community number, or extended community attribute. If you do not specify this keyword, the command displays routes whose community list, community number, or extended community attribute include the specified community list, community number, or extended community attribute.

community-list: Displays BGP IPv6 SR policy routes that match a community list.

basic-community-list-number: Specifies a basic community list by its number in the range of 1 to 99.

comm-list-name: Specifies a community list by its name, a case-sensitive string of 1 to 63 characters.

adv-community-list-number: Specifies an advanced community list by its number in the range of 100 to 199.

bandwidth link-bandwidth-value: Specifies a link bandwidth extended community attribute, a string of 3 to 16 characters, in the format of 16-bit AS number:32-bit user-defined number. For example, 100:3. The AS number is in the range of 0 to 65535, and the user-defined number is in the range of 0 to 4294967295.

color color-value: Specifies the color extended attribute, a string of 4 to 13 characters, in the format of Color-Only (CO) flag:color-value. For example: 10:3. The CO flag is a binary value in the range of 00 to 11, and the color value is in the range of 0 to 4294967295.

rt route-target: Specifies an RT, a string of 3 to 24 characters.

soo site-of-origin: Specifies the SoO attribute, a string of 3 to 24 characters. The SoO attribute has the following formats:

An RT or SoO has the following formats:

· 16-bit AS number:32-bit user-defined number. For example, 101:3. The AS number is in the range of 0 to 65535, and the user-defined number is in the range of 0 to 4294967295.

· 32-bit IP address:16-bit user-defined number. For example, 192.168.122.15:1. The user-defined number is in the range of 0 to 65535.

· 32-bit AS number:16-bit user-defined number. For example, 70000:1. The AS number is in the range of 65536 to 4294967295, and the user-defined number is in the range of 0 to 65535.

· 32-bit IP address/mask length:16-bit user-defined number. For example, 192.168.122.15/24:1.

· 32-bit dotted AS number:16-bit user-defined number. For example, 65535.65535:1.

&<1-32>: Indicates the argument before it can be entered up to 32 times.

Usage guidelines

If you do not specify any parameters, this command displays brief information about all BGP IPv6 SR policy routes.

If you do not specify the community-number, aa:nn, internet, no-advertise, no-export, or no-export-subconfed parameter, this command displays BGP IPv6 SR policy routes that carry any community attribute. In addition, the whole-match keyword does not take effect.

If you do not specify the bandwidth, color, rt, or soo keyword, this command displays BGP IPv6 SR policy routes that carry any extended community attribute. In addition, the whole-match keyword does not take effect.

Examples

# Display brief information about all BGP IPv6 SR policy routes.

<Sysname> display bgp routing-table ipv6 sr-policy

Total number of routes: 1

BGP local router ID is 2.2.2.2

Status codes: * - valid, > - best, d - dampened, h - history

s - suppressed, S - stale, i - internal, e - external

a – additional-path

Origin: i - IGP, e - EGP, ? - incomplete

>i Network : [46][46][8::8]/192

NextHop : 1::2 LocPrf : 100

PrefVal : 0 MED : 0

Path/Ogn: i

# Display information about BGP IPv6 SR policy routes carrying community attributes.

<Sysname> display bgp routing-table ipv6 sr-policy community

Total number of routes: 1

BGP local router ID is 2.2.2.2

Status codes: * - valid, > - best, d - dampened, h - history

s - suppressed, S - stale, i - internal, e - external

a – additional-path

Origin: i - IGP, e - EGP, ? - incomplete

>i Network : [46][46][8::8]/192

NextHop : 1::2 LocPrf : 100

PrefVal : 0 MED : 0

Community: <1:2>

# Display information about BGP IPv6 SR policy routes carrying extended community attributes.

<Sysname> display bgp routing-table ipv6 sr-policy ext-community

Total number of routes: 1

BGP local router ID is 2.2.2.2

Status codes: * - valid, > - best, d - dampened, h - history

s - suppressed, S - stale, i - internal, e - external

a – additional-path

Origin: i - IGP, e - EGP, ? - incomplete

>i Network : [46][46][8::8]/192

NextHop : 1::2 LocPrf : 100

PrefVal : 0 MED : 0

Ext-Community: <CO-Flag 1:2>

Table 1 Command output

Field	Description
Status codes	Status codes of the route.
Origin	Origin of the route: · i – IGP—Originated in the AS. · e – EGP—Learned through an EGP. · ? – incomplete—Unknown origin.
Network	BGP IPv6 SR policy route, comprised of the following elements: · SRv6 TE policy candidate path preference. · SRv6 TE policy color attribute value. · Endpoint IPv6 address.
NextHop	Next hop IP address.
LocPrf	Local preference value.
PrefVal	Preferred value of the route.
MED	Multi-Exit Discriminator attribute value.
Path/Ogn	AS_PATH and ORIGIN attributes of the route: · AS_PATH—Records the ASs the route has passed. · ORIGIN—Identifies the origin of the route.
Community	Community attribute value.
Ext-Community	Extended community attribute value.

‌

# Display detailed information about BGP IPv6 SR policy route [46][46][8::8]/192.

<Sysname> display bgp routing-table ipv6 sr-policy [46][46][8::8]/192

BGP local router ID: 5.5.5.1

Local AS number: 100

Paths: 1 available, 1 best

BGP routing table information of [46][46][8::8]/192

Imported route.

Original nexthop: ::

Output interface: p1

Route age : 19h45m02s

OutLabel : NULL

RxPathID : 0x0

TxPathID : 0x0

AS-path : (null)

Origin : igp

Attribute value : MED 0, localpref 100, pref-val 32768

State : valid, local, best

IP precedence : N/A

QoS local ID : N/A

Traffic index : N/A

Tunnel encapsulation info:

Type: 15 (SR policy)

Policy name: p1

Binding SID: 2::6

Preference: 100

Path: 1

Weight: 1

SIDs: {2::2}

# Display community attribute information for BGP IPv6 SR policy route [46][46][8::8]/192.

<Sysname> display bgp routing-table ipv6 sr-policy [46][46][8::8]/192 community

BGP local router ID: 1.1.1.9

Local AS number: 100

Paths: 1 available, 1 best

BGP routing table information of [46][46][8::8]/192:

Community: no-export

# Display extended community attribute information for BGP IPv6 SR policy route [46][46][8::8]/192.

<Sysname> display bgp routing-table ipv6 sr-policy [46][46][8::8]/192 ext-community

BGP local router ID: 1.1.1.9

Local AS number: 100

Paths: 1 available, 1 best

BGP routing table information of [46][46][8::8]/192:

Ext-Community: <RT 1:1>

# Display AS_PATH attribute information for BGP IPv6 SR policy route [46][46][8::8]/192.

<Sysname> display bgp routing-table ipv6 sr-policy [46][46][8::8]/192 as-path

BGP local router ID: 1.1.1.9

Local AS number: 100

Paths: 1 available, 1 best

BGP routing table information of [46][46][8::8]/192:

As-path: 100

# Display cluster ID list attribute information for BGP IPv6 SR policy route [46][46][8::8]/192.

<Sysname> display bgp routing-table ipv6 sr-policy [46][46][8::8]/192 cluster-list

BGP local router ID: 1.1.1.9

Local AS number: 100

Paths: 1 available, 1 best

BGP routing table information of [46][46][8::8]/192:

Table 2 Command output

Field	Description
Paths	Route information: · available—Number of valid routes. · best—Number of optimal routes.
BGP routing table information of [46][46][8::8]/192	Information of the BGP IPv6 SR policy route [46][46][8::8]/192, where: · [46] is the SRv6 TE policy candidate path preference · [46] is the SRv6 TE policy color attribute value. · [8::8] is the endpoint IPv6 address.
From	IP address of the BGP peer that advertised the route.
Rely Nexthop	Recursive nexthop IP address. If no next hop is found by route recursion, this field displays not resolved.
Original nexthop	Original nexthop IP address. If the route was obtained from a BGP update message, the original next hop is the nexthop IP address in the message.
Output interface	Output interface information, which displays the name of the SRv6 TE policy of the forwarding tunnel.
Route age	Time elapsed since the last update for the route.
OutLabel	Outgoing label of the route.
RxPathID	Received Add-Path ID of the route.
TxPathID	Advertised Add-Path ID of the route.
AS-path	AS_PATH attribute of the route.
Community	Community attribute of the route.
Ext-Community	Extended community attribute of the route.
Cluster list	Cluster ID list attribute of the route.
Origin	Origin of the route: · igp—Originated in the AS. · egp—Learned through an EGP. · incomplete—Unknown origin.
Attribute value	BGP path attributes: · MED—MED value. · localpref—Local preference value. · pref-val—Preferred value. · pre—Protocol preference.
State	Current state of the route. Options include: · valid—Valid route. · internal—Internal route. · external—External route. · local—Locally generated route. · synchronize—Synchronized route. · best—Optimal route. · delay—Delayed route. The route will be delayed for optimal route selection. This value is available only in detailed information of the route. · not preferred for reason—Reason why the route is not selected as the optimal route. For more information, see Table 3.
IP precedence	IP precedence of the route, in the range of 0 to 7. N/A indicates that the route does not support this field.
QoS local ID	QoS local ID of the route, in the range of 1 to 4095. N/A indicates that the route does not support this field.
Traffic index	Traffic index in the range of 1 to 64. N/A indicates that the route does not support this field.
Type	The tunnel encryption type is 15, which represents SR policy.
Preference	Candidate path preference.
Binding SID	BSID value
Path	Candidate path.
Weight	Weight of the SID list.
SIDs	List of SIDs. A G-SID is displayed in the format of {sid-value, coc32, prefix-length}, where sid-value is the SID value and prefix-length is the common prefix length.

‌

Table 3 Reason why the route is not selected as the optimal route

Reason	Description
preferred-value	Routes with larger preferred values exist.
local-preference	Routes with larger local preference values exist.
as-path	Routes with smaller AS_PATH attribute values exist.
origin	There are routes whose origin has a higher priority. The route origins are IGP, EGP, and INCOMPLETE in descending order of priority.
med	Routes with smaller MED values exist.
remote-route	There are routes whose remote-route attribute has a higher priority. BGP selects the optimal route from remote routes in this order: · Route learned from an EBGP peer. · Route learned from a confederation EBGP peer. · Route learned from a confederation IBGP peer. · Route learned from an IBGP peer.
igp-cost	Routes with smaller IGP metrics exist.
relydepth	Routes with smaller recursion depth values exist.
rfc5004	A route received from an EBGP peer is the current optimal route. BGP does not change the optimal route when it receives routes from other EBGP peers.
router-id	Routes with smaller router IDs exist. If one of the routes is advertised by a route reflector, BGP compares the ORIGINATOR_ID of the route with the router IDs of other routes. Then, BGP selects the route with the smallest ID as the optimal route.
cluster-list	Routes with smaller CLUSTER_LIST attribute values exist.
peer-address	Routes advertised by peers with lower IP addresses exist.
received	Earlier learned routes exist.

‌

# Displays advertisement information about the BGP IPv6 SR policy route [46][46][8::8]/192.

<Sysname> display bgp routing-table ipv6 sr-policy [46][46][8::8]/192 advertise-info

BGP local router ID: 2.2.2.2

Local AS number: 1

Paths: 1 best

BGP routing table information of [46][46][8::8]/192(TxPathID:0):

Advertised to peers (2 in total):

1::1

3::3

Table 4 Command output

Field	Description
Paths	Number of optimal paths to reach the destination network.
BGP routing table information of [46][46][8::8]/192(TxPathID:0)	Advertisement information about the BGP IPv6 SR policy route [46][46][8::8]/192. TxPathID represents the advertised Add-Path ID of the route.
Advertised to peers (2 in total)	Indicates the peers to which the route has been advertised. The number in the parentheses indicates the total number of the peers.

‌

# Display statistics about the BGP IPv6 SR policy routes advertised to peer 2::2.

<Sysname> display bgp routing-table ipv6 sr-policy peer 2::2 advertised-routes statistics

Advertised routes total: 2

# Display statistics about the BGP IPv6 SR policy routes received from peer 2::2.

<Sysname> display bgp routing-table ipv6 sr-policy peer 2::2 received-routes statistics

Received routes total: 1

Table 5 Command output

Field	Description
Advertised routes total	Total number of routes advertised to the specified peer.
Received routes total	Total number of routes received from the specified peer.

‌

# Display statistics about BGP IPv6 SR policy routes.

<Sysname> display bgp routing-table ipv6 sr-policy statistics

Total number of routes: 3

# Display statistics about BGP IPv6 SR policy routes carrying community attributes.

<Sysname> display bgp routing-table ipv6 sr-policy statistics community

Total number of routes: 3

display pce segment-routing ipv6 policy database

Use display pce segment-routing ipv6 policy database to display SRv6 TE policy information stored in the PCE database.

Syntax

display pce segment-routing ipv6 policy database [ color color-value endpoint ipv6 ipv6-address | policyname policy-name] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

color color-value endpoint ipv6 ipv6-address: Specifies an SRv6 TE policy by its color attribute value and end-point IPv6 address. The value range for the color attribute value is 0 to 4294967294.

policyname policy-name: Specifies an SRv6 TE policy by its name, a case-sensitive string of 1 to 59 characters.

verbose: Displays detailed SRv6 TE policy information in the PCE database. If you do not specify this keyword, the command displays brief SRv6 TE policy information in the PCE database.

Usage guidelines

If you do not specify the color color-value endpoint ipv6 ipv6-address option or the policyname policy-name option, this command displays information about all SRv6 TE policies in the PCE database.

Examples

# Display brief SRv6 TE policy information in the PCE database.

<Sysname> display pce segment-routing ipv6 policy database

Color Preference Association Delegated address State Endpoint

1 100 1 192.168.56.1 Up 4:4::4:4

2 10 2 192.168.56.2 Up 4:4::4:4

Table 6 Command output

Field	Description
Color	Color attribute value of the SRv6 TE policy.
Preference	Preference of the candidate path of the SRv6 TE policy.
Association ID	Association ID for the candidate path of the SRv6 TE policy. The PCE database uses an association ID to identify an SRv6 TE policy.
Delegated address	IP address of the delegated PCE. If the candidate path is not delegated or the delegation fails, this field displays a hyphen (-).
State	Candidate path state: · Up—The candidate path has been established. · Down—The candidate path has not been established or the establishment fails.
Endpoint	Endpoint IPv6 address of the SRv6 TE policy.

‌

# Display detailed SRv6 TE policy information in the PCE database.

<Sysname> display pce segment-routing ipv6 policy database verbose

PLSP ID: 1046537 Policy name: p1

Color: 10

Endpoint: 4:4::4:4

Preference: 10

Protocol Original: 30

BGP Instance: 0

ASN: 0 Node address: 0.0.0.0

Binding SID: 8::1

Association ID: 1

Protection type: Unprotected

Path role: Primary

SRP ID: 0 PCE initiated: No

PCE-setup-type: SRv6 TE Policy

Delegatable: Yes Delegated address: 192.168.56.1

Operational state: Up Speaker address: 192.168.56.1

PCEP status: -

Candidate path/4: path state: Up

SRv6-EROs: 3

SID type: SID without NAI Strict

SID: 6000::1 NAI: N/A

SID type: SID without NAI Strict

SID: 7000::1 NAI: N/A

SID type: SID without NAI Strict

SID: 8000::1 NAI: N/A

SRv6-RROs: 3

SID type: SID without NAI Strict

SID: 6000::1 NAI: N/A

SID type: SID without NAI Strict

SID: 7000::1 NAI: N/A

SID type: SID without NAI Strict

SID: 8000::1 NAI: N/A

Table 7 Command output

Field	Description
PLSP ID	The PLSP ID uniquely identifies a candidate path.
Policy name	Name of the SRv6 TE policy.
Color	Color attribute value of the SRv6 TE policy.
Endpoint	Endpoint IPv6 address of the SRv6 TE policy.
Preference	Preference of the candidate path of the SRv6 TE policy.
Protocol Original	Candidate path source: · 10—PCE created. · 20—BGP created. · 30—Command created.
BGP Instance	Number of the BGP instance that is created by BGP. This field displays a hyphen (-) if the candidate path is not created by BGP.
ASN	AS number. A value of 0 indicates that the device has not obtained SRv6 TE policy information from a BGP peer.
Node address	BGP node address. This field displays the router ID of the BGP peer when the SRv6 TE policy information was obtained from a BGP peer, and it displays 0.0.0.0 when the SRv6 TE policy information was obtained by using other methods.
Binding SID	BSID of the SRv6 TE policy. If the SRv6 TE policy does not have a BSID, this field displays a hyphen (-).
Association ID	Association ID for the candidate path of the SRv6 TE policy. The PCE database uses an association ID to identify an SRv6 TE policy.
Protection type	Protection type for the candidate path: · Unprotected. · (Full)Rerouting—Normal backup. · Rerouting without Extra-Traffic—Hot-standby backup. · 1:N Protection with Extra-Traffic. · 1+1 Unidirectional Protection. · 1+1 Bidirectional Protection.
Path role	Role of the candidate path: · Primary. · Backup. · Other.
SRP ID	ID of the stateful PCE request parameter.
PCE initiated	Whether the candidate path is initiated by PCE: Yes or No.
PCE-setup-type	Type of the protocol that created the candidate path. The value can be SRv6-TE Policy.
Delegatable	Whether the candidate path is delegable: Yes or No.
Delegated address	IP address of the delegated PCE. If the candidate path is not delegated or the delegation fails, this field displays a hyphen (-).
Operational state	Candidate path state: · Up—The candidate path has been established. · Down—The candidate path has not been established or the establishment has failed.
Speaker address	IP address of the PCE.
PCEP status	Candidate path delegation state: · Delegated—The candidate path has been delegated to the PCE. · Updated—The PCE has updated the candidate path. · Redelegating—The device is redelegating the candidate path to another PCE. · Report-only—The device has only reported the candidate path's information to the PCE but it does not delegate the candidate path to the PCE. · State reverted—The candidate path has restored to the state prior to the delegation.
Candidate path/path-id	SID list used by the candidate path. The path-id is the ID of the SID list.
path state	State of the SID list: · Up—The SID list has been established. · Down—The SID list has not been established or the establishment has failed.
SRv6-EROs	Number of Segment Routing IPv6 Explicit Route Objects (SR-EROs) and the SR-ERO information.
SID Type	SID and NAI information contained in the ERO or RRO. The value can be SID without NAI.
Strict	The current node is a strict node.
SID	SRv6 SID of the node.
NAI	This field is not supported in the current software version. Node or Adjacency Identifier.
SRv6-RROs	Number of Segment Routing IPv6 Record Route Objects (SRv6-RROs) and the SRv6-RRO information.

‌

display pce segment-routing ipv6 policy initiate-cache

Use display pce segment-routing ipv6 policy initiate-cache to display information about the SRv6 TE policy Initiate messages cached in the PCE process.

Syntax

display pce segment-routing ipv6 policy initiate-cache

Views

Any view

Predefined user roles

network-admin

network-operator

Usage guidelines

After a PCE and a PCC establish an active-stateful PCEP session, the PCE sends Initiate messages to the PCC to create candidate paths. This command displays the cached unprocessed Initiate messages.

Examples

# Displays SRv6 TE policy Initiate messages cached in the PCE process.

<Sysname> display pce segment-routing ipv6 policy initiate-cache

Policy name: 111111

Color: 17

Endpoint: 3::3

Preference: 17

Originator: -

Binding SID: 8::17

Association ID: 17

Protection type: Unprotected

SRP ID: 1 PCE initiated: Yes

Operational state: Down

Candiate path/0: path state: Down

SRv6-EROs: 1

SID type: SID without NAI Strict

SID: 2::2 NAI: N/A

SRv6-RROs: 0

Table 8 Command output

Field	Description
Policy name	Name of an SRv6 TE policy. If an SRv6 TE policy does not have a name, this field displays a hyphen (-).
Color	Color attribute value of the SRv6 TE policy.
Endpoint	Endpoint IPv6 address of the SRv6 TE policy.
Preference	Preference of the candidate path of the SRv6 TE policy.
Originator	BGP node address. This field displays the router ID of the BGP peer when the SRv6 TE policy information was obtained from a BGP peer, and it displays 0.0.0.0 when the SRv6 TE policy information was obtained by using other methods.
Binding SID	BSID of the SRv6 TE policy. If the SRv6 TE policy does not have a BSID, this field displays a hyphen (-).
Association ID	Association ID for the candidate path of the SRv6 TE policy. The PCE database uses an association ID to identify an SRv6 TE policy.
Protection type	Protection type for the candidate path: · Unprotected. · (Full)Rerouting—Normal backup. · Rerouting without Extra-Traffic—Hot-standby backup. · 1:N Protection with Extra-Traffic. · 1+1 Unidirectional Protection. · 1+1 Bidirectional Protection.
SRP ID	ID of the stateful PCE request parameter.
PCE initiated	Whether the candidate path is initiated by PCE: Yes or No.
Operational state	Candidate path state: · Up—The candidate path has been established. · Down—The candidate path has not been established or the establishment fails.
Candidate path/path-id	SID list used by the candidate path. The path-id is the ID of the SID list.
path state	State of the SID list: · Up—The SID list has been established. · Down—The SID list has not been established or the establishment fails.
SRv6-EROs	Number of SR-EROs and the SR-ERO information.
SID Type	SID and NAI information contained in the ERO or RRO. The value can be SID without NAI.
Strict	The current node is a strict node.
SID	SRv6 SID (IPv6 address) of the node.
NAI	Node or Adjacency Identifier.
SRv6-RROs	Number of SRv6-RROs and the SRv6-RRO information.

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display segment-routing ipv6 te database

Use display segment-routing ipv6 te database to display SRv6 TE policy database information.

Syntax

display segment-routing ipv6 te database [ link | node | prefix | srv6-sid ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

link: Displays the link information reported by the IGP to the SRv6 TE policy database.

node: Displays the node information reported by the IGP to the SRv6 TE policy database.

prefix: Displays the prefix information reported by the IGP to the SRv6 TE policy database.

srv6-sid: Displays the SRv6 SID information reported by the IGP to the SRv6 TE policy database.

Usage guidelines

If you do not specify any parameters, this command displays all information reported by the IGP to the SRv6 TE policy database.

Examples

# Display link information reported by the IGP to the SRv6 TE policy database.

<Sysname> display segment-routing ipv6 te database link

Link-state information: Link, count: 2

IS-IS P2P:

Local node: System ID 0000.0000.0011.00, IS level: 1

Remote node: System ID 0000.0000.0012.00, IS level: 1

IPv6 local address: 100::1

IPv6 remote address: 100::2

Topology ID: 2

Link source: ProcID 1, TLV type: MT-IS-reach, FragID: 0x0

TE local router ID: 1.1.1.1

TE remote router ID: 2.2.2.2

TE administrative group: 0x80000000

TE maximum bandwidth (kbits/sec): 1000

TE maximum reservable bandwidth (kbits/sec): 1000

TE class 0 unreserved bandwidth (kbits/sec): 1000

TE class 1 unreserved bandwidth (kbits/sec): 1000

TE class 2 unreserved bandwidth (kbits/sec): 1000

TE class 3 unreserved bandwidth (kbits/sec): 1000

TE class 4 unreserved bandwidth (kbits/sec): 1000

TE class 5 unreserved bandwidth (kbits/sec): 1000

TE class 6 unreserved bandwidth (kbits/sec): 1000

TE class 7 unreserved bandwidth (kbits/sec): 1000

TE class 8 unreserved bandwidth (kbits/sec): 0

TE class 9 unreserved bandwidth (kbits/sec): 0

TE class 10 unreserved bandwidth (kbits/sec): 0

TE class 11 unreserved bandwidth (kbits/sec): 0

TE class 12 unreserved bandwidth (kbits/sec): 0

TE class 13 unreserved bandwidth (kbits/sec): 0

TE class 14 unreserved bandwidth (kbits/sec): 0

TE class 15 unreserved bandwidth (kbits/sec): 0

TE metric: 10

IGP metric: 10

SRLG:11

Flag: 0, Average delay(us): 1000

Flag: 0, Min delay(us): 500, Max delay(us): 1500

Delay variation(us): 400

Remaining Bandwidth (bytes/sec): 0

Avaliable Bandwidth (bytes/sec): 0

Utilized Bandwidth (bytes/sec): 0

SR/SRv6 link maximum SID depths:

MPLS MSD : 5

Application Specific Link Attributes

SA-Length: 1, UDA-Length: 1

Standard Applications: 0x10 Flex-Algo

User Defined Applications: 0x10 Flex-Algo

Ext Admin Group:

0x00000004 0x00000000 0x00000000 0x00000000

0x00000000 0x00000000 0x00000000 0x80000000

TE metric: 10

TE administrative group: 0x80000000

TE maximum bandwidth (kbits/sec): 1000

TE maximum reservable bandwidth (kbits/sec): 1000

TE class 0 unreserved bandwidth (kbits/sec): 1000

TE class 1 unreserved bandwidth (kbits/sec): 1000

TE class 2 unreserved bandwidth (kbits/sec): 1000

TE class 3 unreserved bandwidth (kbits/sec): 1000

TE class 4 unreserved bandwidth (kbits/sec): 1000

TE class 5 unreserved bandwidth (kbits/sec): 1000

TE class 6 unreserved bandwidth (kbits/sec): 1000

TE class 7 unreserved bandwidth (kbits/sec): 1000

Flag: 0, Average delay(us): 1000

Flag: 0, Min delay(us): 500, Max delay(us): 1500

Delay variation(us): 400

Remaining bandwidth (bytes/sec): 0

Utilized bandwidth (bytes/sec): 0

SRLG: 11

SRv6 End.X SID

SID : 1111::104

Function type : End.X (no PSP, no USP)

Algorithm : 0

Weight : 0

Flags (B/S/P/C): 0/0/0/0

SRv6 End.X SID

SID : 1111::105

Function type : End.X with PSP

Algorithm : 0

Weight : 0

Flags (B/S/P/C): 0/0/0/0

Table 9 Command output

Field	Description
Link-state information: Link	Link information.
count	Number of links reported by the IGP to the SRv6 TE policy database.
Public instance	Public network instance.
MT-ID	Topology information: · 0—Standard topology. · 2—IPv6 unicast topology.
Link count	Number of links in the IS-IS instance.
IS-IS P2P	IS-IS P2P link.
IS-IS to DIS	IS-IS link to the pseudonode.
IS-IS from DIS	IS-IS link from the pseudonode.
Local node	Local node of the link.
Remote node	Remote node of the link.
System ID	System ID of the node.
IS level	IS-IS level of the node.
Topology ID	Topology ID: · 0—IPv4 topology. · 2—IPv6 topology.
Link source	Advertisement source of the link.
ProcID	IS-IS process ID.
TLV type	TLV type: · none—Invalid TLV. · nbr—Neighbor TLV. · wide-nbr—Wide neighbor TLV. · ip-internal—IP internal reachability TLV. · ip-external—IP external reachability TLV. · router-id—Router ID TLV. · ip-extended—Extended IP reachability TLV. · ipv6-reach—IPv6 reachability TLV. · ipv6 router-id—IPv6 router ID TLV. · MT-IS-reach—Multi-topology IS reachability TLV. · MT-IP-reach—Multi-topology IP reachability TLV. · MT-ipv6-reach—Multi-topology IPv6 reachability TLV. · srlg—SRLG TLV. · locator—Locator TLV. · rtr-cap—Routing capability TLV. · unknown—Unknown TLV.
FragID	Fragment ID of the packet.
TE class XX unreserved bandwidth (kbits/sec)	Reservable bandwidth for the specified TE class.
SR/SRv6 link maximum SID depths	Maximum SID Depths (MSD) information for the SR-MPLS or SRv6 link.
MPLS MSD	Maximum number of SIDs that SR-MPLS can encapsulate into a packet.
SRv6 LAN End.X SID	SRv6 End.X SID sub TLV information about the LAN adjacency link.
SRv6 End.X SID	SRv6 End.X SID sub TLV information about the P2P adjacency link.
SID	SRv6 SID.
Flags (B/S/P/C)	SRv6 flag information: · B—Backup flag. If set, it indicates link protection. · S—Collection flag. If set, it indicates a collection of neighbor devices. The SID can be assigned to multiple neighbors. · P—Permanent flag. If set, it indicates that the SID can be permanently assigned to the neighbor even if the neighbor relationship is reestablished. · C—SRv6 SID compression flag. If set, it indicates that the SID is compressed.
Common prefix length	Common prefix length of the compressed SID.
Node length	Node length of the compressed SID.
Function length	Function length of the compressed SID.
Args length	Args length of the compressed SID.

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# Display node information reported by the IGP to the SRv6 TE policy database.

<Sysname> display segment-routing ipv6 te database node

Link-state information: Node, count: 2

Public instance, MT-ID: 2, IS-IS instance ID: 0, Node count: 2

IS-IS node: System ID 0000.0000.0011.00, IS level: 1

Node source: ProcID 1, TLV type: none, FragID: 0x0

Node topology ID: 0 2

Node flag: 0x1

Node name: isis1

IS-IS area: 00.0000

TE local router ID: 1.1.1.1

SRv6 capability flag (O/C): 0/0

SR/SRv6 node maximum SID depths:

MPLS MSD : 5

Segment Left: 11

End Pop MSD : 11

H.Encaps MSD: 11

End D MSD : 11

Flex-Algo: 128

Priority: 254

MetricType: 1

MFlag: 0

SRPLS_NODE_ATTR_FLEXALGO ExAny

0x00000002

SRPLS_NODE_ATTR_FLEXALGO InAll

0x00000004

SRPLS_NODE_ATTR_FLEXALGO InAny

0x00000000 0x00000000 0x00000000 0x00000000

0x00000000 0x00000000 0x00000000 0x80000000

SRLGInfo: 1

Table 10 Command output

Field	Description
Link-state information: Node	Node information.
count	Number of nodes reported by the IGP to the SRv6 TE policy database.
Public instance	Public network instance.
MT-ID	Topology information: · 0—Standard topology. · 2—IPv6 unicast topology.
Node count	Number of nodes in the IS-IS instance.
System ID	System ID of the node.
IS level	IS-IS level of the node.
Node source	Advertisement source of the node.
ProcID	IS-IS process ID.
TLV type	TLV type: · none—Invalid TLV. · nbr—Neighbor TLV. · wide-nbr—Wide neighbor TLV. · ip-internal—IP internal reachability TLV. · ip-external—IP external reachability TLV. · router-id—Router ID TLV. · ip-extended—Extended IP reachability TLV. · ipv6-reach—IPv6 reachability TLV. · ipv6 router-id—IPv6 router ID TLV. · MT-IS-reach—Multi-topology IS reachability TLV. · MT-IP-reach—Multi-topology IP reachability TLV. · MT-ipv6-reach—Multi-topology IPv6 reachability TLV. · srlg—SRLG TLV. · locator—Locator TLV. · rtr-cap—Routing capability TLV. · unknown—Unknown TLV.
FragID	Fragment ID of the packet.
Node flag	Flag of the node. 0x01 indicates root node.
SRv6 capability flag	SRv6 capability flag: · O—O flag in the SRH. If set, it indicates that the node supports OAM. · C—SRv6 SID compression flag. If set, it indicates that the SID is compressed.
SR/SRv6 link maximum SID depths	MSD information for the SR-MPLS or SRv6 link.
MPLS MSD	Maximum number of SIDs that SR-MPLS can encapsulate into a packet.
Segment Left	Maximum value of the Segments Left field in the SRH.
End Pop MSD	Maximum number of SIDs in the SRH to which the node can apply PSP or USP behavior. For a packet destined to the local SID on the device, the device is the endpoint of the packet.
H.Encaps MSD	Maximum number of SIDs that can be included as part of the H.Encaps behavior.
End D MSD	Maximum number of SIDs in the SRH when performing decapsulation associated with End.Dx behaviors.

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# Display prefix information reported by the IGP to the SRv6 TE policy database.

<Sysname> display segment-routing ipv6 te database prefix

Link-state information: Prefix, count: 11

Public instance, MT-ID: 2, IS-IS instance ID: 0, Prefix count: 10

IS-IS IPv6 prefix:

Local node: System ID 0000.0000.0011.00, IS level: 1

Prefix: 1111::/64, Topology ID: 2

Prefix source: ProcID 1, TLV type: ipv6-reach, FragID: 0x0

Route tag: 100

Prefix metric: 0

Locator information

Metric : 0

Algorithm : 0

Flags (D/A): 0/0

IS-IS IPv6 prefix:

Local node: System ID 0000.0000.0011.00, IS level: 1

Prefix: 1112::/64, Topology ID: 2

Prefix source: ProcID 1, TLV type: locator, FragID: 0x0

Locator information

Metric : 0

Algorithm : 128

Flags (D/A): 0/0

Table 11 Command output

Field	Description
Link-state information: Prefix	Prefix information.
count	Number of prefixes reported by the IGP to the SRv6 TE policy database.
Public instance	Public network instance.
MT-ID	Topology information: · 0—Standard topology. · 2—IPv6 unicast topology.
Prefix count	Number of prefixes in the IS-IS instance.
Local node	Local node information of the link.
System ID	System ID of the node.
IS level	IS-IS level of the node.
Prefix	Prefix address.
Topology ID	Topology ID: · 0—IPv4 topology. · 2—IPv6 topology.
Prefix source	Advertisement source of the prefix.
ProcID	IS-IS process ID.
TLV type	TLV type: · none—Invalid TLV. · nbr—Neighbor TLV. · wide-nbr—Wide neighbor TLV. · ip-internal—IP internal reachability TLV. · ip-external—IP external reachability TLV. · router-id—Router ID TLV. · ip-extended—Extended IP reachability TLV. · ipv6-reach—IPv6 reachability TLV. · ipv6 router-id—IPv6 router ID TLV. · MT-IS-reach—Multi-topology IS reachability TLV. · MT-IP-reach—Multi-topology IP reachability TLV. · MT-ipv6-reach—Multi-topology IPv6 reachability TLV. · srlg—SRLG TLV. · locator—Locator TLV. · rtr-cap—Routing capability TLV. · unknown—Unknown TLV.
FragID	Fragment ID of the packet.
Route tag	Tag value of the interface associated with the prefix.
Locator information	Locator sub-TLV information carried in the prefix.
Algorithm	ID of the algorithm associated with the locator: · 0—SPF algorithm. · 128 to 288—Flex-Algo algorithm.
Flags (D/A)	Locator flag: · D—Leakage flag, set when the Locator TLV cannot be leaked from Level-1 to Level-2. · A—Anycast locator flag, set when the locator is an Anycast Locator.

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# Display SRv6 SID information reported by the IGP to the SRv6 TE policy database.

<Sysname> display segment-routing ipv6 te database srv6-sid

Link-state information: SRv6 SID, count: 6

Public instance, MT-ID: 2, IS-IS instance ID: 0, SRv6 SID count: 5

IS-IS SRv6 SID:

Local node: System ID 0000.0000.0011.00, IS level: 1

SID: 1111::1, Topology ID: 2

SID source: ProcID 1, TLV type: locator, FragID: 0x0

SRv6 endpoint function

Function type: End with PSP

Algorithm : 0

Flags : 0x0

Table 12 Command output

Field	Description
Link-state information: SRv6 SID	SRv6 SID information.
count	Number of SRv6 SIDs reported by the IGP to the SRv6 TE policy database.
Public instance	Public network instance.
MT-ID	Topology information: · 0—Standard topology. · 2—IPv6 unicast topology.
SRv6 SID count	Number of SRv6 SIDs in the IS-IS instance.
IS-IS SRv6 SID	SRv6 SID advertised by IS-IS.
Local node	Local node information of the link.
System ID	System ID of the node.
IS level	IS-IS level of the node.
SID	SRv6 SID.
Topology ID	Topology ID: · 0—IPv4 topology. · 2—IPv6 topology.
SID source	Advertisement source of the SID.
ProcID	IS-IS process ID.
TLV type	TLV type: · none—Invalid TLV. · nbr—Neighbor TLV. · wide-nbr—Wide neighbor TLV. · ip-internal—IP internal reachability TLV. · ip-external—IP external reachability TLV. · router-id—Router ID TLV. · ip-extended—Extended IP reachability TLV. · ipv6-reach—IPv6 reachability TLV. · ipv6 router-id—IPv6 router ID TLV. · MT-IS-reach—Multi-topology IS reachability TLV. · MT-IP-reach—Multi-topology IP reachability TLV. · MT-ipv6-reach—Multi-topology IPv6 reachability TLV. · srlg—SRLG TLV. · locator—Locator TLV. · rtr-cap—Routing capability TLV. · unknown—Unknown TLV.
FragID	Fragment ID of the packet.
SRv6 endpoint function	SRv6 SID function.
Algorithm	Algorithm value.
Flags	Compression flag: · 0x01—End SID compression flag. · 0x10—End.X SID compression flag.

‌

display segment-routing ipv6 te bfd

Use display segment-routing ipv6 te bfd to display BFD information for SRv6 TE policies.

Syntax

display segment-routing ipv6 te bfd [ down | policy { { color color-value | end-point { ipv4 ipv4-address | ipv6 ipv6-address } } * | name policy-name } | up ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

down: Displays BFD information for SRv6 TE policies in down state.

policy: Displays BFD information for the specified SRv6 TE policy.

color color-value: Specifies the color attribute value of an SRv6 TE policy, in the range of 0 to 4294967295.

end-point ipv4 ipv4-address: Specifies the IPv4 address of the endpoint of an SRv6 TE policy. This option is supported only in R5212P01 and later.

end-point ipv6 ipv6-address: Specifies the IPv6 address of the endpoint of an SRv6 TE policy.

name policy-name: Specifies the name of an SRv6 TE policy, a case-sensitive string of 1 to 59 characters.

up: Displays BFD information for SRv6 TE policies in up state.

Usage guidelines

If you do not specify any parameters, this command displays BFD information for all SRv6 TE policies.

Examples

# Display BFD information for all SRv6 TE policies.

<Sysname> display segment-routing ipv6 te policy bfd

Color: 10

Endpoint: 4::4

Policy name: p1

State: Up

Nid: 2149580801

BFD type: ECHO

Encapsulation mode: Encaps

Source: 1::1

Source-address: 2::2

State: Up

Timer: 37

VPN index: 1

Template name: abc

Table 13 Command output

Field	Description
Color	Color attribute value of an SRv6 TE policy.
Endpoint	Endpoint IP address of the SRv6 TE policy.
Policy name	Name of the SRv6 TE policy.
State	SBFD session state: · Up · Down · Delete
Nid	Forwarding entry index for a SID list.
BFD type	The current software version supports only the BFD echo mode.
Encapsulation mode	Encapsulation mode for BFD packets: · Encaps—Normal encapsulation mode. · Insert—Insertion encapsulation mode. If the encapsulation mode for BFD packets is not configured, this field displays a hyphen (-).
Source	Source IP address of the BFD session.
Timer	BFD session timer, in seconds.
VPN index	Index of the VPN instance.
Template name	Name of the echo mode BFD template.

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display segment-routing ipv6 te forwarding

Use display segment-routing ipv6 te forwarding to display SRv6 TE forwarding information.

Syntax

display segment-routing ipv6 te forwarding [ policy { name policy-name | { color color-value | end-point { ipv4 ipv4-address | ipv6 ipv6-address } } * } ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

policy: Displays forwarding information of the specified SRv6 TE policy. If you do not specify an SRv6 TE policy, this command displays forwarding information of all SRv6 TE policies.

name policy-name: Specifies the name of an SRv6 TE policy, a case-sensitive string of 1 to 59 characters.

color color-value: Specifies the color of an SRv6 TE policy, in the range of 0 to 4294967295.

end-point ipv4 ipv4-address: Specifies the endpoint IPv4 address of an SRv6 TE policy. This option is supported only in R5212P01 and later.

end-point ipv6 ip-address: Specifies the endpoint IPv6 address of an SRv6 TE policy.

verbose: Displays detailed SRv6 TE forwarding information. If you do not specify this keyword, the command displays brief SRv6 TE forwarding information.

Examples

# Display brief information about all SRv6 TE policies.

<Sysname> display segment-routing ipv6 te forwarding

Total forwarding entries: 1

Policy name/ID: p1/0

Binding SID: 8000::1

Forwarding index: 2150629377

Main path:

Seglist Name/ID: 1

Seglist forwarding index: 2149580801

Weight: 1

Outgoing forwarding index: 2148532225

Interface: HGE1/0/1

Nexthop: FE80::6CCE:CBFF:FE91:206

Backup Seglist Name/ID: 3

Seglist forwarding index: 2149580803

Weight: 1

Outgoing forwarding index: 2148532227

Interface: HGE1/0/3

Nexthop: FE80::6CCE:CBFF:FE91:208

Backup path:

Seglist Name/ID: 2

Seglist forwarding index: 2149580802

Weight: 1

Outgoing forwarding index: 2148532226

Interface: HGE1/0/2

Nexthop: FE80::6CCE:CBFF:FE91:207

Secondary backup path:

Seglist Name/ID: 2

Seglist forwarding index: 2149580811

Weight: 1

Outgoing forwarding index: 2148532235

Interface: HGE1/0/3

Nexthop: FE80::6CCE:CBFF:FE91:209

# Display detailed information about all SRv6 TE policies.

<Sysname> display segment-routing ipv6 te forwarding verbose

Total forwarding entries: 1

Policy name/ID: p1/0

Binding SID: 8000::1

Forwarding index: 2150629377

Inbound statistics:

Total octets: 525

Total packets: 1

Erroneous packets: 0

Dropped packets: 0

Input rate in last 300 seconds:

0 bits/sec, 0 pkts/sec

Input rate in last statistical period (20 sec):

0 bits/sec, 0 pkts/sec

Outbound statistics:

Total octets: 750

Total packets: 1

Erroneous packets: 0

Dropped packets: 0

Output rate in last 300 seconds:

0 bits/sec, 0 pkts/sec

Output rate in last statistical period (20 sec):

0 bits/sec, 0 pkts/sec

Main path:

Seglist Name/ID: 1

Seglist forwarding index: 2149580801

Weight: 1

Outbound statistics:

Total octets: 750

Total packets: 1

Erroneous packets: 0

Dropped packets: 0

Output rate in last 300 seconds:

0 bits/sec, 0 pkts/sec

Output rate in last statistical period (20 sec):

0 bits/sec, 0 pkts/sec

Output service-class 4:

416 octets, 4 packets,

0 errors, 0 dropped packets

Backup Seglist Name/ID: 3

Seglist forwarding index: 2149580803

Weight: 1

Outbound statistics:

Total octets: 0

Total packets: 0

Erroneous packets: 0

Dropped packets: 0

Output rate in last 300 seconds:

0 bits/sec, 0 pkts/sec

Output rate in last statistical period (20 sec):

0 bits/sec, 0 pkts/sec

Output service-class 4:

0 octets, 0 packets,

0 errors, 0 dropped packets

Outgoing forwarding index: 2148532227

Interface: HGE1/0/3

Nexthop: FE80::6CCE:CBFF:FE91:208

Path ID: 1

SID list: {103::3}

Outbound statistics:

Total octets: 0

Total packets: 0

Erroneous packets: 0

Dropped packets: 0

Output rate in last 300 seconds:

0 bits/sec, 0 pkts/sec

Output rate in last statistical period (20 sec):

0 bits/sec, 0 pkts/sec

Output service-class 4:

0 octets, 4 packets,

0 errors, 0 dropped packets

Backup path:

Seglist Name/ID: 2

Seglist forwarding index: 2149580802

Weight: 1

Outgoing forwarding index: 2148532226

Interface: HGE1/0/2

Nexthop: FE80::6CCE:CBFF:FE91:207

Path ID: 2

SID list: {44::44, 45::47}

Secondary backup path:

SegList Name/ID: s1/1

Seglist forwarding index: 2150629382

Weight: 1

Outgoing forwarding index: 2149580804

Interface: HGE1/0/3

Nexthop: FE80::A0E1:E0FF:FE6D:5DE1

Path ID: 3

SID list: {103::3}

Table 14 Command output

Field	Description
Total forwarding entries	Total number of SRv6 TE forwarding entries.
Policy name/ID	Name/ID of an SRv6 TE policy.
Binding SID	SID value of the ingress node.
Forwarding index	Index of the SRv6 TE policy forwarding entry.
Inbound statistics	Statistics on inbound traffic (the traffic received by the BSID).
Total octets	Total number of octets forwarded.
Total packets	Total number of packets forwarded.
Erroneous packets	Number of erroneous packets.
Dropped packets	Number of dropped packets.
Outbound statistics	Statistics on outbound traffic.
Output service-class	Statistics on outbound traffic with a specific service class. Service class 255 means that the SRv6 TE policy is not configured with a service class and thus has the lowest forwarding priority.
Main path	Main path for traffic forwarding.
Backup path	Backup path for traffic forwarding.
Secondary backup path	Secondary backup path for traffic forwarding.
Seglist Name/ID	Name or ID of the SID list.
Backup Seglist Name/ID	Name or ID of the backup SID list.
Seglist forwarding index	Forwarding entry index of the SID list.
Weight	Weight of the SID list.
Delay timer type	Type of the delay timer: · LSP—Timer that delays to refresh LSPs. · BFD—Timer that delays to clear the BFD/SBFD DOWN bit.
Delay time	Up delay time in milliseconds.
Remaining time	Remaining delay time for the up state.
Outgoing forwarding index	The nexthop forwarding entry index of the first address in the SID list.
Interface	Brief name of the outgoing interface.
Nexthop	Next hop IP address.
Path ID	ID of the SRv6 TE policy candidate path.
SID list	List of SIDs.
SID	SID of the node, which is an IPv6 address.
Common prefix length	Common prefix length of the next G-SID. If the next SID is a non compressed SID, the common prefix length is 0.
G-SID length	Length of the next G-SID. If the next SID is a non compressed SID, the SID length is 128.

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display segment-routing ipv6 te policy

Use display segment-routing ipv6 te policy to display SRv6 TE policy information.

Syntax

display segment-routing ipv6 te policy [ odn | pce ] [ name policy-name | down | up | { color color-value | end-point { ipv4 ipv4-address | ipv6 ipv6-address } } * ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

odn: Specifies SRv6 TE policies created by ODN.

pce: Specifies SRv6 TE policies whose SID lists are computed by a PCE.

name policy-name: Specifies an SRv6 TE policy by its name, a case-sensitive string of 1 to 59 characters.

down: Specifies the SRv6 TE policies in down state.

up: Specifies the SRv6 TE policies in up state.

color color-value: Specifies the color of an SRv6 TE policy, in the range of 0 to 4294967295.

end-point ipv4 ipv4-address: Specifies the endpoint IPv4 address of an SRv6 TE policy. This option is supported only in R5212P01 and later.

end-point ipv6 ipv6-address: Specifies the endpoint IPv6 address of an SRv6 TE policy.

Usage guidelines

If you do not specify any parameters, this command displays information about all SRv6 TE policies.

Examples

# Display information about all SRv6 TE policies.

<Sysname> display segment-routing ipv6 te policy

Name/ID: p1/0

Color: 10

Endpoint: 1000::1

Name from BGP:

BSID:

Mode: Dynamic Type: Type_2 Request state: Succeeded

Current BSID: 8000::1 Explicit BSID: - Dynamic BSID: 8000::1

Reference counts: 3

Flags: A/BS/NC

Status: Up

AdminStatus: Up

Up time: 2020-03-09 16:09:40

Down time: 2020-03-09 16:09:13

Hot backup: Enabled

Statistics: Enabled

Statistics by service class: Enabled

Path verification: Enabled

Forwarding ignore last SID: Enabled

Drop-upon-invalid: Enabled

BFD trigger path-down: Enabled

Source-address: 1::1

SBFD: Enabled

Encapsulation mode: Encaps

Remote: 1000

SBFD template name: abc

SBFD backup-template name: -

OAM SID: -

BFD Echo: Enabled

Encapsulation mode: Encaps

Source address: 1::1

Echo template name: -

Echo backup-template name: -

OAM SID: -

Forwarding index: 2150629377

Association ID: 1

Service-class: -

Rate-limit: 15000 kbps

PCE delegation: Not configured

PCE delegate report-only: Enabled

Encaps reduced: Not configured

Encaps include local End.X: Not configured

Candidate paths state: Configured

Candidate paths statistics:

CLI paths: 1 BGP paths: 0 PCEP paths: 0 ODN paths: 0

Candidate paths:

Preference : 20

CpathName:

ProtoOrigin: CLI Discriminator: 30

Instance ID: 0 Node address: 0.0.0.0

Originator: 0, ::

Optimal: Y Flags: V/A

Dynamic: Not configured

PCEP: Not configured

Explicit SID list:

ID: 1 Name: Sl1

Weight: 1 Forwarding index: 2149580801

State: Up State(-): -

Verification State: -

Active path MTU: 1600 bytes

Backup ID: 2 Name: s2

Weight: 1 Forwarding index: 2149580802

State: Up State(-): -

Verification State: -

Active path MTU: 1280 bytes

Table 15 Command output

Field	Description
Name/ID	SRv6 TE policy name/ID.
Color	Color attribute of the SRv6 TE policy.
Endpoint	Endpoint IP address of the SRv6 TE policy. If the endpoint is not configured, this field displays None.
Name from BGP	Name of the SRv6 TE policy obtained from BGP. If no SRv6 TE policy was obtained from BGP, this field is empty.
BSID	SID value of the ingress node.
Mode	BSID configuration mode: · Explicit—Manually configured. · Dynamic—Dynamically requested. · None—Not configured.
Type	BSID type: · None—Not configured. · Type_2—IPv6 address.
Request state	BSID request state: · Conflicted. · Failed. · Succeeded.
Explicit BSID	Manually configured BSID.
Dynamic BSID	Dynamically requested BSID.
Request failure reason	Reason for BSID request failure: · The specified locator does not exist. · Exhausted SID resources. · Memory threshold reached. · The associated locator is being deleted. · Invalid SID. · The segrt process is smoothing. · The specified static BSID already exists. · The SRMS process is not started. This field is displayed only when the BSID request state is Failed.
Reference counts	Number of times that the SRv6 TE policy has been referenced.
Flags	SRv6 TE policy flags: · A—Active SRv6 TE policy. · C—Optimal SRv6 TE policy. · N—In optimal SRv6 TE policy selection progress. · BA—Requesting BSID. · BS—Optimal BSID. · D—Deleted SRv6 TE policy. · CF—Conflicted with an existing BSID. · NC—Manually configured SRv6 TE policy. · NB—SRv6 TE policy obtained from a BGP route.
Status	SRv6 TE policy state: · Up—Active state. · Down—Inactive state. The SRv6 TE policy is down because of a reason other than BFD or SBFD detection. · Down (BFD down)—A BFD or SBFD session detects that the forwarding paths of all SID lists in the candidate paths of the SRv6 TE policy are not available. The state of the SRv6 policy is set to down. In this state, the first next hop on the forwarding paths of all the SID lists is available. However, the subsequent paths are not available.
AdminStatus	Administrative state of the SRv6 TE policy: · Down—The policy is shut down by the shutdown command. · Up—The policy is not shut down by the shutdown command.
Up time	Date and time when the SRv6 TE policy became up.
Down time	Date and time when the SRv6 TE policy became down.
Hot backup	Hot standby status for the SRv6 TE policy: · Enabled. · Disabled. · Multilevel-backup—Hot backup is enabled and the secondary backup path is configured.
Statistics	Traffic statistics status for the SRv6 TE policy: · Disabled. · Enabled.
Statistics by service class	Service class based traffic statistics status for the SRv6 TE policy: · Enabled. · Disabled.
Path verification	Status of the path verification feature: · Enabled. · Disabled.
Forwarding ignore last SID	Whether or not to ignore the last SID in the SID list of the SRv6 TE policy: · Enabled. · Disabled.
Drop-upon-invalid	Drops traffic when the SRv6 TE policy becomes invalid: · Disabled. · Enabled.
BFD trigger path-down	Whether to enable SRv6 TE policy path switchover when the BFD session for the SRv6 TE policy goes down: · Disabled. · Enabled.
Source-address	Source address of the SRv6 TE policy. If no source address is configured, this field displays None.
SBFD	SBFD status for the SRv6 TE policy: · Enabled. · Disabled.
Remote	Remote discriminator of the SBFD session.
SBFD template name	Name of the SBFD template for the main path.
SBFD backup-template name	Name of the SBFD template for the backup SID list.
OAM SID	OAM SID added to SBFD packets or Echo BFD packets.
BFD Echo	Echo packet mode BFD status for the SRv6 TE policy: · Enabled. · Disabled.
Source address	Source IPv6 address of the echo packet mode BFD session.
Echo template name	Name of the echo BFD template.
Echo backup-template name	Name of the echo BFD template for the backup SID list.
Encapsulation mode	Encapsulation mode for the SRv6 TE policy: · Encaps. · Insert. · Insert no endpoint. If the encapsulation mode is not configured for the SRv6 TE policy, this field displays a hyphen (-).
Forwarding index	Forwarding entry index of the SRv6 TE policy.
Association ID	Association ID for the candidate path of the SRv6 TE policy. An association ID can identify an SRv6 TE policy.
Service-class	Service class value of the SRv6 TE policy. If the default service class is used, this field displays a hyphen (-).
Rate-limit	Rate limit for the SRv6 TE policy. If no rate limit is configured, this field displays a hyphen (-).
PCE delegation	PCE delegation state for the SRv6 TE policy: · Disabled. · Enabled. · Not configured.
PCE delegate report-only	Only reports SRv6 TE policy information without delegating the SRv6 TE policy to the PCE: · Disabled. · Enabled. · Not configured.
Encaps reduced	Encaps.Red encapsulation mode for the SRv6 TE policy: · Disabled. · Enabled. · Not configured.
Encaps include local End.X	Local End.X SID encapsulation for the SRv6 TE policy: · Disabled. · Enabled. · Not configured.
Candidate paths state	Whether candidate paths are configured: · Configured. · Not configured.
Candidate paths statistics	Candidate paths statistics by path origin.
CLI paths	Number of manually configured candidate paths.
BGP paths	Number of candidate paths obtained from BGP SRv6 Policy routes.
PCEP paths	This field is not supported in the current software version. Number of candidate paths obtained from PCEP.
ODN paths	Number of candidate paths created by ODN.
Candidate paths	SRv6 TE policy candidate path information.
Preference	SRv6 TE policy candidate path preference.
CPathName	Name of the candidate path obtained from a BGP route. If no path name was obtained, this field is empty.
ProtoOrigin	Protocol that obtained the SRv6 TE policy: · PCEP—The SRv6 TE policy was obtained through PCEP. (This value is not supported in the current software version.) · BGP—The SRv6 TE policy was obtained through BGP. · CLI—The SRv6 TE policy was locally configured. · Unknown—The SRv6 TE policy origin is unknown.
Discriminator	Discriminator of the SRv6 TE policy.
Instance ID	BGP instance ID. A value of 0 indicates that the device does not obtain SRv6 TE policy information from BGP peers.
Node address	BGP node address. For an SRv6 TE policy obtained from a BGP peer, the node address is the Router ID of the BGP peer. For an SRv6 TE policy obtained in other methods, the node address is 0.0.0.0.
Originator: ASN, Peer-address	The SRv6 TE policy was obtained through BGP. · ASN—AS number. A value of 0 indicates that the device does not obtain SRv6 TE policy information from BGP peers. · Peer-address—BGP peer address, which is the router ID of the BGP peer for an SRv6 TE policy obtained from a BGP peer. For a manually configured SRv6 TE policy, the peer address is ::.
Optimal	Whether the path is the optimal path: · Y—Yes. · N—No.
Flags	Flags of the SRv6 TE policy candidate path: · V—Valid candidate path. · A—Active candidate path. · None—No candidate path. · T—Secondary backup path.
Dynamic	Dynamic SID list computation: Configured or Not configured.
PCEP	This field is not supported in the current software version. Configuration state of PCEP: Configured or Not configured.
Explicit SID list	Explicit SID list in the candidate path of the SRv6 TE policy.
ID	SID list ID.
Backup ID	Index of the backup SID list.
Name	SID list name.
Weight	Weight of the SID list in the candidate path.
Forwarding index	Forwarding entry index of the SID list.
State	SID list state: · UP. · DOWN. · Down (BFD down)—The first next hop on the forwarding path of the SID list is available, but BFD detects that the subsequent path is not available.
State(type)	SBFD or echo BFD session state for the SID list: · Up. · Down. · Path Inactive—The candidate path contains no available SID list. · Unknown—The SBFD or echo BFD result is unknown. If SBFD or echo BFD is not configured, this field displays a hyphen (-).
Verification state	Verification result of the SID list: · Down—The verification fails. · Up—The verification succeeds. If verification is not configured, this field displays a hyphen (-).
Active path MTU	Active path MTU of the SID list, which equals the SRv6 path MTU minus the reserved path MTU.

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display segment-routing ipv6 te policy last-down-reason

Use display segment-routing ipv6 te policy last-down-reason to display information about the most recent down event for SRv6 TE policies.

Syntax

display segment-routing ipv6 te policy last-down-reason [ binding-sid bsid | color color-value endpoint { ipv4 ipv4-address | ipv6 ipv6-address } | policy-name policy-name ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

binding-sid bsid: Specifies an SRv6 TE policy by its BSID, which is an IPv6 address.

color color-value: Specifies an SRv6 TE policy by its color attribute value. The value range for the color attribute value is 0 to 4294967295.

end-point ipv4 ipv4-address: Specifies an SRv6 TE policy by its endpoint IPv4 address. This option is supported only in R5212P01 and later.

endpoint ipv6 ipv6-address: Specifies an SRv6 TE policy by its endpoint IPv6 address.

policy-name policy-name: Specifies an SRv6 TE policy by its name, a case-sensitive string of 1 to 59 characters.

Usage guidelines

If you do not specify any parameters, this command displays information about the most recent down event for all SRv6 TE policies.

Examples

# Display information about the most recent down event for SRv6 TE policy abc.

<Sysname> display segment-routing ipv6 te policy last-down-reason policy-name abc

Name/ID: p1/1

Color: 10

Endpoint: 4::4

BSID: 5000::2

Up time: 2020-06-23 15:42:14

Down time: 2020-06-23 15:41:15

Down reason: Candidate path invalid segment list

Candidate paths:

Preference : 10

CPathName:

Explicit SID list:

ID: 1 Name: s1

Up time: 2020-06-23 15:42:14

Down time: 2020-06-23 15:41:15

Down reason: No SRv6 SID Out

Backup ID: 2 Name: s2

Up time: 2020-06-23 15:42:14

Down time: 2020-06-23 15:41:15

Down reason: No SRv6 SID Out

Table 16 Command output

Field	Description
Name/ID	Name/ID of an SRv6 TE policy.
Color	Color attribute value of the SRv6 TE policy.
Endpoint	Endpoint address of the SRv6 TE policy. If the endpoint address is not configured, this field displays None.
BSID	SID value of the ingress node.
Up time	Time when the SRv6 TE policy came up.
Down time	Time when the SRv6 TE policy went down.
Down reason	Reason for the down event of the SRv6 TE policy: · Admin down—The SRv6 TE policy has been shut down by the shutdown command. · No Endpoint. · No candidate path. · No valid candidate path. · Candidate path invalid segment list—All SID lists in the candidate path are down. · Policy unconfigured—The SRv6 TE policy is being deleted. · Internal error.
Candidate paths	Candidate path information of the SRv6 TE policy.
Preference	Preference of the candidate path.
CPathName	Name of the candidate path. If no candidate path name is obtained from BGP, this field is empty.
Explicit SID List	SID list in the candidate path of the SRv6 TE policy.
ID	SID list index.
Backup ID	Index of the backup SID list.
Name	SID list name.
Up time	Time when the SID list came up.
Down time	Time when the SID list went down.
Down reason	Reason for the down event of the SID list: · No SID list—The SID list does not exist. · No SRv6 SID Out—The first SID in the SID list has no outgoing interface. · Internal error. · Bfd Detect Down—The first next hop on the forwarding path of the SID list is available, but BFD detects that the subsequent path is not available.

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display segment-routing ipv6 te policy statistics

Use display segment-routing ipv6 te policy statistics to display SRv6 TE policy statistics.

Syntax

display segment-routing ipv6 te policy statistics

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display SRv6 TE policy statistics.

<Sysname> display segment-routing ipv6 te policy statistics

IPv6 TE Policy Database Statistics

Total policies: 1 (1 up 0 down)

Configured: 1 (1 up 0 down)

From BGP: 0 (Added 0 deleted 0 0 up 0 down)

From ODN: 0 (Added 0 deleted 0 0 up 0 down)

From PCE: 0 (Added 0 deleted 0 0 up 0 down)

Total candidate paths: 1

Configured: 1

From BGP: 0 (Added 0 deleted 0)

Total SID lists: 1 (1 up 0 down)

Configured: 1 (1 up 0 down)

From BGP: 0 (0 up 0 down)

From ODN: 0 (Added 0 deleted 0 0 up 0 down)

From PCE: 0 (Added 0 deleted 0 0 up 0 down)

SRv6-TE policy group resource information:

Max resources: 1024

Used resources: 0

Upper threshold: 717 (70%)

Lower threshold: 102 (10%)

SRv6-TE policy resource information:

Max resources: 1024

Used resources: 1

Upper threshold: 512 (50%)

Lower threshold: 102 (10%)

SID list resource information:

Max resources: 4096

Used resources: 1

Upper threshold: 3277 (80%)

Lower threshold: 1638 (40%)

Forwarding path resource information:

Max resources: 65535

Used resources: 1

Upper threshold: 26214 (40%)

Lower threshold: 13107 (20%)

Table 17 Command output

Field	Description
Total policies	Total number of SRv6 TE policies: · up—Number of SRv6 TE policies in up state. · down—Number of SRv6 TE policies in down and Down (BFD down) states.
Configured	Number of manually configured SR policies. · up—Number of SRv6 TE policies in up state. · down—Number of SRv6 TE policies in down and Down (BFD down) states.
From BGP	Number of SR policies learned through BGP. · Added—Number of BGP-added SRv6 TE policies. · deleted—Number of BGP-deleted SRv6 TE policies. · up—Number of SRv6 TE policies in up state. · down—Number of SRv6 TE policies in down and Down (BFD down) states.
From ODN	Number of SRv6 TE policies created by ODN. · Added—Number of ODN-added SRv6 TE policies. · deleted—Number of ODN-deleted SRv6 TE policies. · up—Number of SRv6 TE policies in up state. · down—Number of SRv6 TE policies in down and Down (BFD down) states.
From PCE	Number of SRv6 TE policies created by PCE. · Added—Number of PCE-added SRv6 TE policies. · deleted—Number of PCE-deleted SRv6 TE policies. · up—Number of SRv6 TE policies in up state. · down—Number of SRv6 TE policies in down and Down (BFD down) states.
Total candidate paths	Total number of SRv6 TE policy candidate paths.
Total SID lists	Total number of SID lists.
Max resources	Total number of resources.
Upper threshold	Upper resource threshold.
Lower threshold	Lower resource threshold.

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display segment-routing ipv6 te policy status

Use display segment-routing ipv6 te policy status to display status information about SRv6 TE policies.

Syntax

display segment-routing ipv6 te policy status [ policy-name policy-name ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

policy-name policy-name: Specifies an SRv6 TE policy by its name, a case-sensitive string of 1 to 59 characters. If you do not specify this option, the command displays status information about all SRv6 TE policies.

Usage guidelines

The device executes the check items for an SRv6 TE policy one by one.

If the result for a check item is Passed, it means that the SRv6 TE policy passed the check for this item and the next item check starts.

If the result for a check item is Failed, the subsequent items will not be checked and the check result for those items is displayed as a hyphen (-).

Examples

# Display status information about all SRv6 TE policies.

<Sysname> display segment-routing ipv6 te policy status

Name/ID: p1/0

Status: Up

Check admin status : Passed

Check for endpoint & color : Passed

Check for segment list : Passed

Check valid candidate paths : Passed

Check for BSIDs : Passed

Table 18 Command output

Field	Description
Name/ID	Name/ID of an SRv6 TE policy.
Status	State of the SRv6 TE policy: · Up—Active state. · Down—Inactive state. The SRv6 TE policy is down because of a reason other than BFD or SBFD detection. · Down (BFD down)—A BFD or SBFD session detects that the forwarding paths of all SID lists in the candidate paths of the SRv6 TE policy are not available. The state of the SRv6 policy is set to down. In this state, the first next hop on the forwarding paths of all the SID lists is available. However, the subsequent paths are not available.
Check admin status	Check the administrative status of the SRv6 TE policy: · Passed—The SRv6 TE policy is administratively up. · Failed—The SRv6 TE policy is administratively shut down by using the shutdown command.
Check for endpoint & color	Check for the endpoint and color configuration for the SRv6 TE policy: · Passed—The endpoint address and color are configured. · Failed—The endpoint address or color is not configured.
Check for segment lists	Check for valid SID lists in the candidate paths of the SRv6 TE policy: · Passed—A valid SID list exists. · Failed—No valid SID list exists.
Check valid candidate paths	Check for an up candidate path in the SRv6 TE policy: · Passed—An up candidate path exists. · Failed—No up candidate path exists.
Check for BSIDs	Check for the binding SID configuration for the SRv6 TE policy: · Passed—A BSID is specified for the SRv6 TE policy. · Failed—No BSID is specified for the SRv6 TE policy.

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display segment-routing ipv6 te policy-group

Use display segment-routing ipv6 te policy-group to display information about SRv6 TE policy groups.

Syntax

display segment-routing ipv6 te policy-group [ group-id ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

group-id: Specifies an SRv6 TE policy group by its ID in the range of 1 to 4294967295. If you do not specify this argument, the command displays information about all SRv6 TE policy groups.

verbose: Displays detailed SRv6 TE policy information. If you do not specify this keyword, the command displays brief SRv6 TE policy information.

Examples

# Display brief information about all SRv6 TE policy groups.

<Sysname> display segment-routing ipv6 te policy-group

Total number of policy groups: 1

GroupID GroupState UPMappings TotalMappings

10 Up 26 26

# Display detailed information about all SRv6 TE policy groups.

<Sysname> display segment-routing ipv6 te policy-group verbose

Total number of policy groups: 1

GroupID: 10 GroupState: Up

GroupNID: 2151677953 Best-effort NID: 2156920837

Referenced: 1 Flags: A

Group type: Static

Group color: 10

StateChangeTime: 2022-08-10 01:50:17

Endpoint: 4::4

UP/Total Mappings: 6/6

IPv4 Best-effort: Not configured IPv6 Best-effort: Not configured

Color Type DSCP

10 IPv4 10, 12, 14, 16, 18, 20

Table 19 Command output

Field	Description
UPMappings	Number of up (valid) color-to-DSCP mappings in the SRv6 TE policy group.
TotalMappings	Total number of color-to-DSCP mappings in the SRv6 TE policy group.
GroupNID	Index of the forwarding entry for the SRv6 TE policy group.
Best-effort NID	Index of the forwarding entry for SRv6 BE.
Referenced	Number of times that the SRv6 TE policy group has been used.
Flags	Flags of the SRv6 TE policy group: · A—Assign the forwarding entry index of the SRv6 TE policy group. · F—Issue the forwarding entry of the SRv6 TE policy group. · W—Waiting for assigning the forwarding entry index of the SRv6 TE policy group. · D—Delete the SRv6 TE policy group. · None—The SRv6 TE policy group is in initialized or stable state.
Group type	SRv6 TE policy group type: · Static DSCP—Statically created SRv6 TE policy group that uses DSCP-based traffic steering. · Static Dot1p—Statically created SRv6 TE policy group that uses 802.1p-based traffic steering. · Dynamic—Dynamically created SRv6 TE policy group.
Group color	Color value of the SRv6 TE policy group.
StateChangeTime	Time when the SRv6 TE policy group state changed.
Endpoint	Destination node IP address of the SRv6 TE policy group. None indicates that the endpoint is not configured.
UP/Total Mappings	Number of valid color-to-DSCP mappings/total number of configured color-to-DSCP mappings in the SRv6 TE policy group.
IPv4 Best-effort	Status of SRv6 BE forwarding for IPv4 packets that do not match a color-to-DSCP mapping: · Configured. · Not configured.
IPv6 Best-effort	Status of SRv6 BE forwarding for IPv6 packets that do not match a color-to-DSCP mapping: · Configured. · Not configured.
Color	Color value
Type	Packet type: IPv4 or IPv6.
DSCP	DSCP value.

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display segment-routing ipv6 te policy-group last-down-reason

Use display segment-routing ipv6 te policy-group last-down-reason to display the reason why the specified or all SRv6 TE policy groups went down most recently.

Syntax

display segment-routing ipv6 te policy-group last-down-reason [ group-id | endpoint ipv6-address color color-value ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

group-id: Specifies an SRv6 TE policy group by its ID in the range of 1 to 4294967295. If you do not specify this argument, the command displays information about all SRv6 TE policy groups.

endpoint ipv6-address color color-value: Specifies the IPv6 address of the destination node and the color value in the range of 0 to 4294967295.

Examples

# Display the reason why SRv6 TE policy group 10 went down most recently.

<Sysname> display segment-routing ipv6 te policy-group last-down-reason 10

Group ID : 10 Group type : Static DSCP

Group color: 100 Endpoint : 4::4

Group NID : 2151677956

Create time: 2021-03-18 09:57:43

Up time : -

Down time : 2021-03-18 09:57:43

Down reason: No active SRv6-TE Policies

Color: 20 Address family: IPv4

Up time : 2021-03-18 01:52:20.785

Down time : 2021-03-18 09:59:23

Down reason: No endpoint

Table 20 Command output

Field	Description
Group type	SRv6 TE policy group type: · Static DSCP—Statically created SRv6 TE policy group that uses DSCP-based traffic steering. · Static Dot1p—Statically created SRv6 TE policy group that uses 802.1p-based traffic steering. · Dynamic—Dynamically created SRv6 TE policy group.
Group color	Color value of the SRv6 TE policy group.
Endpoint	Destination node IP address of the SRv6 TE policy group.
Group NID	Index of the forwarding entry for the SRv6 TE policy group.
Create time	Time when the SRv6 TE policy group state was created.
Up time	Time when the SRv6 TE policy group came up.
Down time	Time when the SRv6 TE policy group went down.
Down reason	Reason why the SRv6 TE policy group went down: · No endpoint. · No color-DSCP mappings. · No active SRv6 TE policies. · No color-Dot1p mappings—No color-to-802.1p mappings are configured.
Color	Color value mapped to the DSCP or 802.1p value.
Up time	Time when the color-to-DSCP or color-to-802.1p mapping came up.
Down time	Time when the color-to-DSCP or color-to-802.1p mapping went down.
Down reason	Reason why the color-to-DSCP or color-to-802.1p mapping went down. · No endpoint. · The SRv6-TE policy is used by another group. · SRv6-TE policy doesn't exist. · SRv6-TE policy down.

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display segment-routing ipv6 te policy-group statistics

Use display segment-routing ipv6 te policy-group statistics to display SRv6 TE policy group statistics.

Syntax

display segment-routing ipv6 te policy-group statistics

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display SRv6 TE policy group statistics.

<Sysname> display segment-routing ipv6 te policy-group statistics

Statistics type Total Up

Dynamic groups 3 1

Static DSCP groups 2 1

Color-DSCP mappings 2 2

Table 21 Command output

Field	Description
Statistics type	Statistics objects: · Dynamic groups—Dynamically created SRv6 TE policy groups. · Static DSCP groups—Statically created SRv6 TE policy groups that use DSCP-based traffic steering. · Color-DSCP mappings—Color-to-DSCP mappings in all SRv6 TE policy groups.
Total	Total number of statistics objects.
UP	Number of effective statistics objects.

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display segment-routing ipv6 te sbfd

Use display segment-routing ipv6 te sbfd to display SBFD information for SRv6 TE policies.

Syntax

display segment-routing ipv6 te sbfd [ down | policy { { color color-value | end-point { ipv4 ipv4-address | ipv6 ipv6-address } } * | name policy-name } | up ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

down: Displays SBFD information for SRv6 TE policies in down state.

policy: Displays SBFD information for the specified SRv6 TE policy.

color color-value: Specifies the color attribute value of an SRv6 TE policy, in the range of 0 to 4294967295.

end-point ipv4 ipv4-address: Specifies the IPv4 address of the endpoint of an SRv6 TE policy. This option is supported only in R5212P01 and later.

end-point ipv6 ipv6-address: Specifies the IPv6 address of the endpoint of an SRv6 TE policy.

name policy-name: Specifies the name of an SRv6 TE policy, a case-sensitive string of 1 to 59 characters.

up: Displays SBFD information for SRv6 TE policies in up state.

Usage guidelines

If you do not specify any parameters, this command displays SBFD information for all SRv6 TE policies.

Examples

# Display SBFD information for all SRv6 TE policies.

<Sysname> display segment-routing ipv6 te policy sbfd

Color: 10

Endpoint: 4::4

Policy name: p1

State: Down

Encapsulation mode: Encaps

NID: 2150629378

Remote Discr: 1000011

Source-address: 1::1

State: Up

TimerFd: -

TimerLeftTime: -

VPN index: 0

Template name: abc

Table 22 Command output

Field	Description
Color	Color attribute value of an SRv6 TE policy.
Endpoint	Endpoint IP address of the SRv6 TE policy.
Policy name	Name of the SRv6 TE policy.
State	SBFD session state: · Up. · Down. · Delete.
Nid	Forwarding entry index for a SID list.
BFD type	The current software version supports only the SBFD type.
Encapsulation mode	Encapsulation mode for SBFD packets: · Encaps—Normal encapsulation mode. · Insert—Insertion encapsulation mode. · Insert no endpoint—Insertion without endpoint encapsulation mode If the encapsulation mode for SBFD packets is not configured, this field displays a hyphen (-).
Remote Discr	Remote discriminator.
Source-address	Source IP address of BFD packets, which is configured by using the source-address command. If not configured, this field displays a hyphen (-).
Timer	SBFD session timer, in seconds.

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display segment-routing ipv6 te segment-list

Use display segment-routing ipv6 te segment-list to display SRv6-TE SID list information.

Syntax

display segment-routing ipv6 te segment-list [ name seglist-name | id id-value ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

name segment-list-name: Specifies a SID list by its name, a case-sensitive string of 1 to 128 characters.

id id-value: Specifies a SID list by its ID. The value range for the SID list ID is 1 to 4294967295.

Usage guidelines

If you do not specify a SID list name or ID, this command displays information about all SRv6-TE SID lists.

To view SID list ID information, execute the display segment-routing ipv6 te policy command.

Examples

# Display information about all SRv6-TE SID lists.

<Sysname> display segment-routing ipv6 te segment-list

Total Segment lists: 1

Name/ID: A/1

Origin: CLI

Status: Up

Nodes: 1

Index : 1 SID: 1::2

Status : Up TopoStatus: Nonexistent

Type : Type 2 Flags: None

Coc Type : - Common prefix length: 0

Table 23 Command output

Field	Description
Total Segment lists	Number of SID lists.
Name/ID	SID list name/ID.
Origin	Origin of the SID list. Options include: · CLI—Locally configured in the CLI. · BGP—Issued by BGP. · PCE—Issued by a PCE. If the SID list does not have a valid origin, this field displays a hyphen (-).
Status	SID list status, Down or Up.
Nodes	Number of nodes in the SID list.
Index	Node index.
SID	SID value (IPv6 address) of the node.
Status	SID list status: Down, Up, or unknown (-).
TopoStatus	Whether the SID exists in the IGP topology: · Existent. · Nonexistent.
Type	SID type of the node: · None—Not configured. · Type 2—IPv6 address.
Flags	Node flags, which are not defined and displayed as None.
COC type	Compression type of the SID, which is COC32, representing the 32-bit compression. If the SID is not compressed, this field displays a hyphen (-).
Common prefix length	Common prefix length of the G-SID.

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display segment-routing ipv6 te source-sid

Use display segment-routing ipv6 te source-sid to display information about SRv6 SIDs collected from the LS database.

Syntax

display segment-routing ipv6 te source-sid [ end | end-x | sid ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

end: Displays End SID information.

end-x: Displays End.X SID information.

sid: Displays SRv6 SID information.

Usage guidelines

If you do not specify any parameters, this command displays information about all SRv6 SIDs collected from the LS database.

Examples

# Display information about all SRv6 SIDs collected from the LS database.

<Sysname> display segment-routing ipv6 te source-sid

SID : 11::1:0:8, Count: 1

Type : End.X(LAN), Topology ID: 0

Instance ID: 0

Source : IS-IS, ProcID 100, IS-Level-1

Node : 0000.0000.0019.00

Local : 0000.0000.0019.00

Peer : 0000.0000.0022.01

SID : 12:1:2:3:0:1::, Count: 2

Type : End, Topology ID: 0

Instance ID: 0

Source : IS-IS, ProcID 100, IS-Level-1

Node : 0000.0000.0019.00

Type : End, Topology ID: 2

Instance ID: 0

Source : IS-IS, ProcID 100, IS-Level-1

Node : 0000.0000.0019.00

SID : 12:1:2:3:0:6::, Count: 2

Type : End.X, Topology ID: 0

Instance ID: 0

Source : IS-IS, ProcID 100, IS-Level-1

Node : 0000.0000.0019.00

Local : 2001:1::2

Peer : 2001:1::16

Type : End.X, Topology ID: 2

Instance ID: 0

Source : IS-IS, ProcID 100, IS-Level-1

Node : 0000.0000.0019.00

Local : 2001:1::2

Peer : 2001:1::16

Table 24 Command output

Field	Description
SID	SRv6 SID.
Count	Number of advertising sources for the SID.
Type	SID type: · End. · End.X. · End.X (LAN).
ProcID	Process ID.
IS-Level-X	IS level on the node: IS-Level-1 or IS-Level-2.
Node	Node where the SID advertising source resides.
Local	For an End.X SID, this field displays the system ID of the IS-IS process to which the SID-associated local interface belongs. If the link type is P2P and the IPv6 link attribute is enabled for the IS-IS process, this field displays the IPv6 address of the SID-associated local interface.
Peer	For an End.X SID, this field displays the system ID of the IS-IS process to which the SID-associated neighbor interface belongs. If the link type is P2P and the IPv6 link attribute is enabled for the IS-IS process, this field displays the IPv6 address of the SID-associated neighbor interface.

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distribute bgp-ls

Use distribute bgp-ls to enable the device to distribute SRv6 TE policy candidate path information to BGP-LS.

Use undo distribute bgp-ls to restore the default.

Syntax

distribute bgp-ls

undo distribute bgp-ls

Default

The device does not distribute SRv6 TE policy candidate path information to BGP-LS.

Views

SRv6 TE view

Predefined user roles

network-admin

Usage guidelines

After this command is executed, the device distributes SRv6 TE policy candidate path information to BGP-LS. BGP-LS advertises the SRv6 TE policy candidate path information in routes to meet application requirements.

Examples

# Enable the device to distribute SRv6 TE policy candidate path information to BGP-LS.

<Sysname> system-view

[Sysname] segment-routing-ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] distribute bgp-ls

drop-upon-invalid

Use drop-upon-invalid to configure the device to drop traffic when an SRv6 TE policy becomes invalid.

Use undo drop-upon-invalid to restore the default.

Syntax

drop-upon-invalid { disable | enable }

undo drop-upon-invalid

Default

The drop-upon-invalid feature is not configured for an SRv6 TE policy. The configuration in SRv6 TE view applies.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

disable: Disables dropping traffic when the SRv6 TE policy becomes invalid.

enable: Enables dropping traffic when the SRv6 TE policy becomes invalid.

Usage guidelines

Enable this feature for an SRv6 TE policy if you want to use only the SRv6 TE policy to forward traffic.

By default, if all forwarding paths of an SRv6 TE policy become invalid, the device forwards the packets through IPv6 routing table lookup based on the packet destination IPv6 addresses.

After you execute the drop-upon-invalid enable command, the device drops the packets if all forwarding paths of the SRv6 TE policy become invalid.

The drop-upon-invalid enable command does not take effect in the following cases:

· BSID request failed or BSID conflicted for the SRv6 TE policy. To view the BSID state, see the Request state field in the display segment-routing ipv6 te policy command output.

· The SRv6 TE policy is invalid. To check the SRv6 TE policy validity, see the Forwarding index field in the display segment-routing ipv6 te policy command output. If the value is 0, the SRv6 TE policy is invalid.

The drop-upon-invalid command configured on the remote device does not affect an SRv6 TE policy generated based on a BGP SRv6 TE policy route. The SRv6 TE policy is controlled by only the drop-upon-invalid command configured on the local device.

You can enable the drop-upon-invalid feature for all SRv6 TE policies globally in SRv6 TE view or for a specific SRv6 TE policy in SRv6 TE policy view. The policy-specific configuration takes precedence over the global configuration. An SRv6 TE policy uses the global configuration only when it has no policy-specific configuration.

Examples

# Enable the device to drop traffic when SRv6 TE policy a1 becomes invalid.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy a1

[Sysname-srv6-te-policy-a1] drop-upon-invalid enable

Related commands

srv6-policy drop-upon-invalid

dynamic (SRv6 TE policy path preference view)

Use dynamic to create and enter SRv6 TE policy path preference dynamic view, or enter the existing SRv6 TE policy path preference dynamic view.

Use undo dynamic to delete the SRv6 TE policy path preference dynamic view and all the configuration in the view.

Syntax

dynamic

undo dynamic

Default

The SRv6 TE policy path preference dynamic view does not exist.

Views

SRv6 TE policy path preference view

Predefined user roles

network-admin

Usage guidelines

In SRv6 TE policy path preference dynamic view, you can enable the device to dynamically create SID lists for an SRv6 TE policy candidate path.

Examples

# Create and enter SRv6 TE policy path preference dynamic view.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] candidate-paths

[Sysname-srv6-te-policy-1-path] preference 20

[Sysname-srv6-te-policy-1-path-pref-20] dynamic

[Sysname-srv6-te-policy-1-path-pref-20-dyna]

dynamic (SRv6-TE-ODN view)

Use dynamic to create and enter SRv6-TE-ODN dynamic view, or enter the existing SRv6-TE-ODN dynamic view.

Use undo dynamic to delete the SRv6-TE-ODN dynamic view and all the configuration in the view.

Syntax

dynamic

undo dynamic

Default

The SRv6-TE-ODN dynamic view does not exist.

Views

SRv6-TE-ODN view

Predefined user roles

network-admin

Usage guidelines

In SRv6-TE-ODN dynamic view, you can enable dynamic generation of SRv6 TE policies and dynamic generation of SID lists for SRv6 TE policy candidate paths.

Examples

# Create and enter SRv6-TE-ODN dynamic view.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] on-demand color 1

[Sysname-srv6-te-odn-1] dynamic

[Sysname-srv6-te-odn-1-dynamic]

encapsulation-mode encaps include local-end.x

Use encapsulation-mode encaps include local-end.x to configure local End.X SID encapsulation in the SRH of the packets forwarded by an SRv6 TE policy.

Use undo encapsulation-mode encaps include local-end.x to restore the default.

Syntax

encapsulation-mode encaps include local-end.x [ disable ]

undo encapsulation-mode encaps include local-end.x

Default

The local End.X SID encapsulation is not configured for an SRv6 TE policy, and the local End.X SID encapsulation setting configured in SRv6 TE view applies.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

disable: Disables encapsulating the local End.X SID into the SRH header of packets forwarded by an SRv6 TE policy. If you do not specify this keyword, the local End.X SID will be encapsulated into the SRH of the packets.

Usage guidelines

If the traffic steering mode is BSID and the SRv6 SID of the ingress node is an End.X SID, the device does not encapsulate the End.X SID into the SRH by default.

To obtain complete SRv6 forwarding path information from the SRH of packets, use this command to configure the device to encapsulate the local End.X SID in the SRH.

You can configure the local End.X SID encapsulation for all SRv6 TE policies globally in SRv6 TE view or for a specific SRv6 TE policy in SRv6 TE policy view. The policy-specific configuration takes precedence over the global configuration. An SRv6 TE policy uses the global configuration only when it has no policy-specific configuration.

Examples

# Include the End.X SID in the SRH of the packets forwarded by an SRv6 TE policy.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] encapsulation-mode encaps include local-end.x

Related commands

srv6-policy encapsulation-mode encaps include local-end.x

end-point

Use end-point to configure the endpoint IP address for the SRv6 TE policy group.

Use undo end-point to restore the default.

Syntax

end-point ipv6 ipv6-address

undo end-point ipv6

Default

No endpoint address is configured for the SRv6 TE policy group.

Views

SRv6 TE policy group view

Predefined user roles

network-admin

Parameters

ipv6 ipv6-address: Specifies the endpoint IPv6 address for the SRv6 TE policy group.

Usage guidelines

The SRv6 TE policies added to the SRv6 TE policy group must use the same endpoint IPv6 address as the SRv6 TE policy group.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Configure the endpoint address as 100::2 for SRv6 TE policy group 10.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy-group 10

[Sysname-srv6-te-policy-group-10] end-point ipv6 100::2

explicit segment-list

Use explicit segment-list to specify a SID list for a candidate path.

Use undo explicit segment-list to delete a SID list of a candidate path or restore the default weight and global path MTU of a SID list.

Syntax

explicit segment-list segment-list-name [ path-mtu mtu-value | weight weight-value | backup-segment-list backup-segment-list-name [ backup-path-mtu mtu-value | backup-weight weight-value ] * ] *

undo explicit segment-list segment-list-name [ path-mtu | weight | backup-segment-list backup-segment-list-name [ backup-path-mtu | backup-weight ] * ] *

Default

No SID lists are specified for an SRv6 TE policy candidate path.

Views

SRv6 TE policy path preference view

Predefined user roles

network-admin

Parameters

segment-list-name: Specifies a primary SID list name, a case-sensitive string of 1 to 128 characters.

path-mtu mtu-value: Specifies the path MTU (in bytes) for the primary SID list. The value range for the path MTU is 1280 to 9000. If you do not specify this option, the global path MTU set in SRv6 view applies to the SID list.

weight weight-value: Specifies a weight for the primary SID list, in the range of 1 to 4294967295. The default weight is 1.

backup-segment-list backup-segment-list-name: Specifies a backup SID list name, a case-sensitive string of 1 to 128 characters.

backup-path-mtu mtu-value: Specifies the path MTU (in bytes) for the backup SID list. The value range for the path MTU is 1280 to 9000. If you do not specify this option, the path MTU for the backup SID list is the same as that for the primary SID list.

backup-weight weight-value: Specifies a weight for the backup SID list, in the range of 1 to 4294967295. If you do not specify this option, the weight for the backup SID list is the same as that for the primary SID list.

Usage guidelines

An SRv6 TE policy uses the SID list specified for the highest-preference candidate path as a traffic forwarding subpath.

An SRv6 TE policy candidate path can have multiple SID lists. All the SID lists can be used to forward traffic for load sharing based on their weights. Assume SID lists a, b, and c are assigned weights x, y, z, respectively. The load of SID list a is x/(x+y+z) of the total traffic.

If you assign weight values for the same SID list multiple times, the most recent configuration takes effect.

You can configure the path MTU for all SRv6-TE candidate paths globally in SRv6 view or for a specific forwarding path in SRv6 TE policy path preference view. The path-specific configuration takes precedence over the global configuration. A forwarding path identified by a SID list of an SRv6 TE policy uses the global configuration only when it has no path-specific configuration.

The path MTU of a SID list minus the global reserved path MTU is the active MTU of the SID list. The source node uses the active MTU of the SID list or the IPv6 MTU of the physical interface, whichever is smaller, as the actual MTU to send packets. The active MTU of a SID list must be greater than or equal to 1280 bytes.

You can specify a backup SID list for each SID list. When the primary SID list fails, the traffic is switched to the backup SID list to reduce service interruption. If multiple candidate paths exist, traffic is switched from the current candidate path to the backup candidate path only when all primary and backup SID lists on the candidate path fail.

Examples

# Configure SID list abc for the SRv6 TE policy candidate path with preference 20, and the set the SID list weight to 20.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy a1

[Sysname-srv6-te-policy-a1] candidate-paths

[Sysname-srv6-te-policy-a1-path] preference 20

[Sysname-srv6-te-policy-a1-path-pref-20] explicit segment-list abc weight 20

Related commands

path-mtu

segment-list

forwarding ignore-last-sid

Use forwarding ignore-last-sid to enable the SRv6 TE policy to forward packets without using the last SID in the SID list.

Use undo forwarding ignore-last-sid to restore the default.

Syntax

forwarding ignore-last-sid { disable | enable }

undo forwarding ignore-last-sid

Default

The feature is not configured. The configuration in SRv6 TE view applies.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

disable: Disables the feature of forwarding packets without using the last SID in the SID list of the SRv6 TE policy.

enable: Enables the SRv6 TE policy to forward packets without using the last SID in the SID list.

Usage guidelines

In an SRv6 VPN scenario, to forward a public network packet through the SRv6 TE policy, the device encapsulates an SRH into the packet. The SRH contains the SID list of the SRv6 TE policy and the SID assigned to the VPN instance or public network instance (End.DT4 SID, for example). Both the last SID in the SID list and the End.DT4 SID are used to identify the egress node. To reduce the SRv6 packet size, you can configure this command to use only the End.DT4 SID to identify the egress node.

You can configure this feature for all SRv6 TE policies globally in SRv6 TE view or for a specific SRv6 TE policy in SRv6 TE policy view. The policy-specific configuration takes precedence over the global configuration. An SRv6 TE policy uses the global configuration only when it has no policy-specific configuration.

Examples

# Enable SRv6 TE policy 1 to forward packets without using the last SID in the SID list.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] forwarding ignore-last-sid enable

Related commands

srv6-policy forwarding ignore-last-sid

forwarding statistics

Use forwarding statistics to configure traffic forwarding statistics for an SRv6 TE policy.

Use undo forwarding statistics to restore the default.

Syntax

forwarding statistics { disable | enable }

undo forwarding statistics

Default

An SRv6 TE policy uses the traffic forwarding statistics configuration in SRv6 TE view.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

disable: Disables the SRv6 TE policy forwarding statistics.

enable: Enables the SRv6 TE policy forwarding statistics.

Usage guidelines

You can configure traffic forwarding statistics for all SRv6 TE policies globally in SRv6 TE view or for a specific SRv6 TE policy in SRv6 TE policy view. The policy-specific configuration takes precedence over the global configuration. An SRv6 TE policy uses the global configuration only when it has no policy-specific configuration.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Enable traffic forwarding statistics for SRv6 TE policy 1.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] forwarding statistics enable

Related commands

display segment-routing ipv6 te forwarding

reset segment-routing ipv6 te forwarding statistics

srv6-policy forwarding statistic enable

srv6-policy forwarding statistic interval

group-color

Use group-color to configure the color value for an SRv6 TE policy group.

Use undo group-color to restore the default.

Syntax

group-color color-value

undo group-color

Default

The color value is not configured for an SRv6 TE policy group.

Views

SRv6 TE policy group view

Predefined user roles

network-admin

Parameters

color-value: Specifies the color attribute value, in the range of 0 to 4294967295.

Usage guidelines

You can use the color value specified in this command to perform color-based traffic steering to the specified SRv6 TE policy group.

You can specify the same color value for an SRv6 TE policy group and an SRv6 TE policy in it. The color values do not affect each other.

Examples

# Configure the color value as 1 for the SRv6 TE policy group.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy-group 1

[Sysname-srv6-te-policy-group-1] group-color 1

import-route sr-policy

Use import-route sr-policy to enable BGP to redistribute routes from the BGP IPv6 SR policy.

Use undo import-route sr-policy to restore the default.

Syntax

import-route sr-policy

undo import-route sr-policy

Default

BGP does not redistribute BGP IPv6 SR policy routes.

Views

BGP IPv6 SR policy address family

Predefined user roles

network-admin

Usage guidelines

After you execute this command, the system will redistribute the local BGP IPv6 SR policy routes to the BGP routing table and advertise the routes to IBGP peers. Then, the peers can forward traffic based on the BGP IPv6 SR policy.

Examples

# In BGP IPv6 SR policy address family view, enable BGP to redistribute routes from the BGP IPv6 SR policy.

<Sysname> system-view

[Sysname] bgp 100

[Sysname-bgp-default] address-family ipv6 sr-policy

[Sysname-bgp-default-srpolicy-ipv6] import-route sr-policy

index

Use index to add a node to a SID list.

Use undo index to delete a node from a SID list.

Syntax

index index-number ipv6 ipv6-address

index index-number coc32 ipv6 ipv6-address common-prefix-length

undo index index-number

Default

No nodes exist in a SID list.

Views

SID list view

Predefined user roles

network-admin

Parameters

index-number: Specifies the node index, in the range of 1 to 65535.

ipv6 ipv6-address: Specifies the IPv6 address of the node.

coc32: Adds the COC flavor. It indicates that the next node of the current node is a 32-bit G-SID.

common-prefix-length: Specifies the length of the common prefix of the next G-SID. The value range for this argument is 1 to 94.

Usage guidelines

When you add G-SIDs to a SID list, the common prefix length configured by this command must be the same as that of the locator where the next node belongs.

When you add G-SIDs to a SID list, make sure the following conditions are met:

· The SRv6 SID for the previous node of the G-SID must be End(COC32) SID or End.X(COC32) SID.

· The SRv6 SID for the last node does not contain the COC flavor. That is, you cannot use the index index-number coc32 ipv6 command to specify the SRv6 SID for the penultimate node.

Examples

# Add a node to SID list abc, and set the node index to 1 and IPv6 address to 1000::1.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] segment-list abc

[Sysname-srv6-te-sl-abc] index 1 ipv6 1000::1

# Add nodes to SID list text as follows:

· Add a node whose index is 10, IPv6 address is 100::1, next node as 32-bit G-SID, and the common prefix length of the G-SID is 64.

· Add a node whose index is 20, IPv6 address is 200::1:0:0, next node as 32-bit G-SID, and the common prefix length of the G-SID is 64.

· Add a node whose index is 30, IPv6 address is 200::2:0:0, next node as 32-bit G-SID, and the common prefix length of the G-SID is 64.

· Add a node whose index is 40, IPv6 address is 200::3:0:0, next node as 32-bit G-SID, and the common prefix length of the G-SID is 64.

· Add a node whose index is 50 and IPv6 address is 200::4:0:0.

· Add a node whose index is 60 and IPv6 address is 300::3.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] segment-list text

[Sysname-srv6-te-sl-abc] index 10 coc32 ipv6 100::1 64

[Sysname-srv6-te-sl-abc] index 20 coc32 ipv6 200::1:0:0 64

[Sysname-srv6-te-sl-abc] index 30 coc32 ipv6 200::2:0:0 64

[Sysname-srv6-te-sl-abc] index 40 coc32 ipv6 200::3:0:0:0 64

[Sysname-srv6-te-sl-abc] index 50 ipv6 200::4:0:0

[Sysname-srv6-te-sl-abc] index 60 ipv6 300::3

Related commands

locator

srv6 compress enable

on-demand

Use on-demand to create an on-demand next-hop (ODN) template for creating SRv6 TE policies and enter SRv6-TE-ODN view, or enter the SRv6-TE-ODN view of an existing ODN template.

Use undo on-demand to delete an ODN template and all the configuration in the view.

Syntax

on-demand color color-value

undo on-demand color color-value

Default

No SRv6 TE policy ODN templates exist.

Views

SRv6 TE view

Predefined user roles

network-admin

Parameters

color color-value: Specifies the color value for the ODN template, in the range of 0 to 4294967295.

Usage guidelines

When the device receives a BGP route, it compares the color extended attribute value of the BGP route with the color value of the ODN template. If the color values match, the device automatically generates an SRv6 TE policy and two candidate paths for the policy.

· The policy uses the BGP route's next hop address as the end-point address and the ODN template's color value as the color attribute value of the policy.

· The candidate paths use preferences 100 and 200. You need to manually configure the SID lists for the candidate path with preference 200, and use PCE to compute the SID lists for the candidate path with preference 100.

You can also manually create candidate paths for an ODN-created SRv6 TE policy.

Examples

# Create an SRv6 TE policy ODN template with color value 1 and enter SRv6-TE-ODN view.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] on-demand color 1

[Sysname-srv6-te-odn-1]

path verification

Use path verification to configure path connectivity verification for an SRv6 TE policy.

Use undo path verification to restore the default.

Syntax

path verification { enable [ rib-check-only ] | disable }

undo path verification

Default

Path connectivity verification is not configured for an SRv6 TE policy. The setting configured in SRv6-TE view applies.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

enable: Enables path connectivity verification for the SRv6 TE policy.

rib-check-only: Checks the reachability of locator prefixes associated with all SRv6 SIDs in the SID list without checking the existence of the SRv6 SIDs in the topology. If you do not specify this keyword, the device checks the reachability of locator prefixes associated with all SRv6 SIDs in the SID list and the existence of the SRv6 SIDs in the topology.

disable: Disables path connectivity verification for the SRv6 TE policy.

Usage guidelines

You must configure this command on the first node of the SRv6 TE policy.

Typically, the controller deploys the SID list of an SRv6 TE policy. Without BFD configured, the first node cannot immediately detect path failures in the SRv6 TE policy. It only changes the SID list of the SRv6 TE policy as instructed by the controller that completes path recalculation upon detecting a topology change. If the controller or the link to the controller fails, the first node will be unable to detect failures and change SID lists, resulting in traffic loss.

For fast traffic switchover and high availability, you can enable path connectivity verification for the first node of the SRv6 TE policy. This feature enables the first node to collect network topology information, and verify all SID lists in the SRv6 TE policy as follows:

· If all SRv6 SIDs exist in the topology and the associated locator prefixes are routable, the SID list is valid.

· If any SRv6 SIDs do not exist in the topology or any of the associated locator prefixes are not routable, the SID list is invalid.

Upon detecting an invalid SID list (SID list failure), the first node changes paths as follows:

· If the valid candidate paths of the SRv6 TE policy contain multiple SID lists, and one of the SID list fails, traffic is distributed to other valid SID lists.

· If the SRv6 TE policy has valid primary and backup candidate paths, and all SID lists for the primary candidate path fail, traffic is distributed to the backup candidate path.

· If all valid candidate paths of the SRv6 TE policy fail, the SRv6 TE policy is faulty and an associated protection action is taken (for example, MPLS L3VPN FRR).

You can configure SRv6 TE policy path connectivity verification in both SRv6 TE view and SRv6 TE policy view. The configuration in SRv6 TE policy view takes precedence over the configuration in SRv6 TE view. If path connectivity verification is not configured for an SRv6 TE policy, the configuration in SRv6 TE applies.

The first node must have all SRv6 SIDs and routes in the IGP domain to detect their status through the following settings:

· Enable the IGP domain to forward routing information through IPv6 IS-IS.

· Configure the distribute link-state command in IS-IS view for the first node to report link status.

If a BSID exists in the segment list path, path connectivity verification will fail because the BSID cannot be flooded in the IGP topology. Do not configure this command in the scenario where BSID is deployed.

Examples

# Enable path connectivity verification for SRv6 TE policy 1.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] path verification enable

Related commands

distribute (Layer 3—IP Routing Command Reference)

srv6-policy path verification enable

pce capability segment-routing ipv6

Use pce capability segment-routing ipv6 to enable the SRv6 capability for a PCC device.

Use undo pce capability segment-routing ipv6 to disable the SRv6 capability for a PCC device.

Syntax

pce capability segment-routing ipv6

undo pce capability segment-routing ipv6

Default

A PCC device does not have the SR capability.

Views

PCC view

Predefined user roles

network-admin

Usage guidelines

To establish an SRv6-capable PCEP session, you must enable the SRv6 capability on both peers of the PCEP session. An SRv6-capable active PCEP session supports computation, report, delegation, and update of SR-based LSPs.

In the current software version, a PCE device does not have the SRv6 capability.

Examples

# Enable the SRv6 capability for the PCC device.

<Sysname> system-view

[Sysname] pce-client

[Sysname-pcc] pce capability segment-routing ipv6

pce delegation

Use pce delegation to enable PCE delegation for an SRv6 TE policy.

Use undo pce delegation to restore the default.

Syntax

pce delegation { enable | disable }

undo pce delegation

Default

An SRv6 TE policy uses the PCE delegation configuration in SRv6 TE view.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

enable: Enables PCE delegation for the SRv6 TE policy.

disable: Disables PCE delegation for the SRv6 TE policy.

Usage guidelines

After PCE delegation for an SRv6 TE policy is enabled, the PCC delegates the policy's candidate paths to a PCE. The PCC creates or updates candidate paths according to the creation or update requests received from the PCE.

You can configure PCE delegation for all SRv6 TE policies globally in SRv6 TE view or for a specific SRv6 TE policy in SRv6 TE policy view. The policy-specific configuration takes precedence over the global configuration. An SRv6 TE policy uses the global configuration only when it has no policy-specific configuration.

If you execute both the pce delegation command and the pce passive-delegate report-only command for an SRv6 TE policy, the pce passive-delegate report-only command takes effect.

Examples

# Enable PCE delegation for an SRv6 TE policy.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] pce delegation enable

Related commands

pce passive-delegate report-only

srv6-policy pce delegation enable

pce passive-delegate report-only

Use pce passive-delegate report-only to enable the device to report candidate path information of an SRv6 TE policy to the PCE without delegating the policy to the PCE.

Use undo pce passive-delegate report-only to restore the default.

Syntax

pce passive-delegate report-only { enable | disable }

undo pce passive-delegate report-only

Default

An SRv6 TE policy uses the passive delegation report only setting configured in SRv6 TE view.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

enable: Enables the passive delegation report only feature for the SRv6 TE policy.

disable: Disables the passive delegation report only feature for the SRv6 TE policy.

Usage guidelines

You can configure the passive delegation report only feature for all SRv6 TE policies globally in SRv6 TE view or for a specific SRv6 TE policy in SRv6 TE policy view. The policy-specific configuration takes precedence over the global configuration. An SRv6 TE policy uses the global configuration only when it has no policy-specific configuration.

If you execute both the pce delegation command and the pce passive-delegate report-only command for an SRv6 TE policy, the pce passive-delegate report-only command takes effect.

Examples

# Enable the device to report an SRv6 TE policy's candidate path information to the PCE without delegating the policy to the PCE.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] pce passive-delegate report-only enable

Related commands

pce delegation

srv6-policy pce passive-delegate report-only enable

pcep (SRv6 TE policy path preference dynamic view)

Use pcep to enable an SRv6 TE policy candidate path to use PCE to compute the SID lists.

Use undo pcep to restore the default.

Syntax

pcep

undo pcep

Default

An SRv6 TE policy candidate path does not use PCE to compute SID lists. You need to manually configure the SID lists for the candidate path.

Views

SRv6 TE policy path preference dynamic view

Predefined user roles

network-admin

Usage guidelines

The device uses PCE to compute SID lists for a manually created SRv6 TE policy candidate path in the following procedure:

1. The device that acts as a PCC sends a path computation request to the PCE.

2. The PCE computes paths after it receives the request.

3. The PCE replies the PCC with the computed path information.

4. The PCC creates SID lists for the SRv6 TE policy candidate path according to the path information computed by PCE.

Examples

# Enable an SRv6 TE policy candidate path to use PCE to compute the SID lists.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] candidate-paths

[Sysname-srv6-te-policy-1-path] preference 20

[Sysname-srv6-te-policy-1-path-pref-20] dynamic

[Sysname-srv6-te-policy-1-path-pref-20-dyna] pcep

policy

Use policy to create an SRv6 TE policy and enter its view, or enter the view of an existing SRv6 TE policy.

Use undo policy to delete an SRv6 TE policy and all the configuration in the SRv6 TE policy.

Syntax

policy policy-name

undo policy policy-name

Default

No SRv6 TE policies exist.

Views

SRv6 TE view

Predefined user roles

network-admin

Parameters

policy-name: Specifies an SRv6 TE policy name, a case-sensitive string of 1 to 59 characters.

Examples

# Create an SRv6 TE policy named srv6policy and enter its view.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy p1

[Sysname-srv6-te-policy-p1]

policy-group

Use policy-group to create an SRv6 TE policy group and enter its view, or enter the view of an existing SRv6 TE policy group.

Use undo policy-group to delete an SRv6 TE policy group and all the configuration in the SRv6 TE policy group.

Syntax

policy-group group-id

undo policy-group group-id

Default

No SRv6 TE policy groups exist.

Views

SRv6 TE view

Predefined user roles

network-admin

Parameters

group-name: Specifies an SRv6 TE policy group by its ID in the range of 1 to 4294967295.

Usage guidelines

You can add SRv6 TE policies to an SRv6 TE policy group to implement SRv6 TE policy based forwarding according to DSCP values of packets.

Examples

# Create SRv6 TE policy group 1 and enter its view.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy-group 1

[Sysname-srv6-te-policy-group-1]

preference

Use preference to set the preference for an SRv6 TE policy candidate path and enter SRv6 TE policy path preference view, or enter an existing SRv6 TE policy path preference view.

Use undo preference to delete an SRv6 TE policy candidate path preference and all the configuration in the SRv6 TE policy path preference view.

Syntax

preference preference-value

undo preference preference-value

Default

No preference is set for an SRv6 TE policy candidate path.

Views

SRv6 TE policy candidate path view

Predefined user roles

network-admin

Parameters

preference-value: Specifies a candidate path preference in the range of 1 to 65535. A bigger value represents a higher preference.

Usage guidelines

A preference represents a candidate path of an SRv6 TE policy.

Examples

# Set the preference of an SRv6 TE policy candidate path to 20, and enter SRv6 TE policy path preference view.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy a1

[Sysname-srv6-te-policy-a1] candidate-paths

[Sysname-srv6-te-policy-a1-path] preference 20

[Sysname-srv6-te-policy-a1-path-pref-20]

reset segment-routing ipv6 te forwarding statistics

Use reset segment-routing ipv6 te forwarding statistics to clear forwarding statistics for all SRv6 TE policies.

Syntax

reset segment-routing ipv6 te forwarding statistics [ binding-sid binding-sid | color color-value endpoint endpoint-ipv6 | name name-value ]

Views

User view

Predefined user roles

network-admin

Parameters

binding-sid binding-sid: Specifies the BSID of an SRv6 TE policy.

color color-value endpoint endpoint-ipv6: Specifies the color value and end-point IPv6 address of an SRv6 TE policy. The value range for the color-value argument is 0 to 4294967295.

name name-value: Specifies the name of an SRv6 TE policy, a case-sensitive string of 1 to 59 characters.

Usage guidelines

If you do not specify any parameters, this command clears forwarding statistics for all SRv6 TE policies.

Examples

# Clear forwarding statistics for all SRv6 TE policies.

<Sysname> reset segment-routing ipv6 te forwarding statistics

Related commands

display segment-routing ipv6 te forwarding

forwarding statistics

srv6-policy forwarding statistics enable

srv6-policy forwarding statistics interval

restrict

Use restrict to configure the ODN SRv6 TE policy generation policy.

Use undo restrict to restore the default.

Syntax

restrict prefix-list-name

undo restrict

Default

A BGP route can trigger ODN to create an SRv6 TE policy when the route's color attribute value is the same as the ODN color value.

Views

SRv6-TE-ODN view

Predefined user roles

network-admin

Parameters

prefix-list-name: Specifies an IPv6 prefix list by its name, a case-sensitive string of 1 to 63 characters.

Usage guidelines

You can specify an IPv6 prefix list to filter BGP routes. The BGP routes permitted by the specified IPv6 prefix list can trigger ODN to create SRv6 TE policies. The BGP routes denied by the specified IPv6 prefix list cannot trigger ODN to create SRv6 TE policies.

Examples

# Permit the BGP routes in subnet 1000::/96 to trigger ODN to create SRv6 TE policies.

<Sysname> system-view

[Sysname] ipv6 prefix-list policy permit 1000:: 96

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] on-demand color 1

[Sysname-srv6-te-odn-1] restrict policy

Related commands

ipv6 prefix-list (Layer 3—IP Routing Command Reference)

router-id filter

Use router-id filter to enable Router ID filtering.

Use undo router-id filter to disable Router ID filtering.

Syntax

router-id filter

undo router-id filter

Default

Router ID filtering is disabled.

Views

BGP IPv6 SR policy address family.

Predefined user roles

network-admin

Usage guidelines

For the device to process only part of the received BGP IPv6 SR policy routes, you can execute this command to enable filtering the routes by Router ID.

This command enables the device to check the Route Target attribute of a received BGP IPv6 SR policy route. The device accepts the route only if the Route Target attribute contains the Router ID of the local device.

To use Router ID filtering, make sure you add Route Target attributes to BGP IPv6 SR policy routes properly by using routing policy or other methods. Otherwise, Router ID filtering might learn or drop BGP IPv6 SR policy routes incorrectly.

Examples

# Enable Router ID filtering.

<Sysname> system-view

[Sysname] bgp 100

[Sysname-bgp-default] address-family ipv6 sr-policy

[Sysname-bgp-default-srpolicy-ipv6] router-id filter

sbfd

Use sbfd to configure SBFD for an SRv6 TE policy.

Use undo sbfd to restore the default.

Syntax

sbfd { disable | enable [ remote remote-id ] [ template template-name ] [ backup-template backup-template-name ] [ oam-sid sid ] [ encaps | insert [ no-endpoint ] ] }

undo sbfd

Default

SBFD is disabled for an SRv6 TE policy. An SRv6 TE policy uses the SBFD configuration in SRv6 TE view.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

disable: Disables SBFD for the SRv6 TE policy.

enable: Enables SBFD for the SRv6 TE policy.

remote remote-id: Specifies the remote discriminator of the SBFD session, in the range of 1 to 4294967295. If you do not specify this option, the configuration in SRv6 TE view applies.

backup-template backup-template-name: Specifies a BFD session parameter template for the backup SID list. The backup-template-name argument indicates the template name, a case-sensitive string of 1 to 63 characters. If you do not specify a backup template but a primary template is specified, the primary template applies. If neither the primary nor the backup template is specified in this command, the backup template specified in SRv6 TE view applies.

oam-sid sid: Adds an OAM SID to SBFD packets to identify the destination node. The sid argument represents the SRv6 SID of the endpoint destination node. If you do not specify this option, no OAM SID will be added to BFD packets. At present, the OAM SID must be set to the End SID of the destination node.

encaps: Uses the normal encapsulation mode to encapsulate SBFD packets.

insert: Uses the insertion mode to encapsulate SBFD packets.

no-endpoint: Uses the insertion with no endpoint mode to encapsulate SBFD packets. In this mode, the SID list inserted into the SRH does not contain the endpoint in an SRv6 TE policy. If you do not specify this keyword, SBFD packets are encapsulated in insertion with endpoint mode.

Usage guidelines

To use SBFD to detect an SRv6 TE policy, the device must encapsulate the SID list of the SRv6 TE policy for the SBFD packets. The following encapsulation modes are available:

· Encaps—Normal encapsulation mode. It adds a new IPv6 header and an SRH to the original packets.

¡ The destination IPv6 address in the new IPv6 header is the first IPv6 address in the SID list of the SRv6 TE policy. The source IPv6 address is the IPv6 address specified using the encapsulation source-address command in SRv6 view.

¡ All SIDs in the SID list of the SRv6 TE policy are encapsulated in the SRH.

· Insert—Insertion mode. It inserts an SRH after the original IPv6 header.

¡ The destination IPv6 address in the original IPv6 header changes to the first IPv6 address in the SID list of the SRv6 TE policy. The source IPv6 address in the original BFD echo packet does not change.

¡ All SIDs in the SID list of the SRv6 TE policy and the endpoint of the SRv6 TE policy are encapsulated in the SRH. The endpoint is the last one in the SID list.

· Insert no-endpoint—Insert no-endpoint mode. It inserts an SRH without an endpoint after the original IPv6 header. The last SID in the SID list and the endpoint in the SRv6 TE policy represent the same node.

¡ All SIDs in the SID list of the SRv6 TE policy are encapsulated in the SRH. The endpoint of the SRv6 TE policy is not encapsulated in the SRH.

If you do not specify the encaps or insert keyword, the encapsulation mode configured by the bfd srv6-encapsulation-mode encap command applies.

You can configure SBFD for all SRv6 TE policies globally in SRv6 TE view or for a specific SRv6 TE policy in SRv6 TE policy view. The policy-specific configuration takes precedence over the global configuration. An SRv6 TE policy uses the global configuration only when it has no policy-specific configuration.

The remote discriminator specified in this command must be the same as that specified in the sbfd local-discriminator command on the reflector. Otherwise, the reflector will not send responses to the initiator.

The device supports the echo packet mode BFD and the SBFD for an SRv6 TE policy. If both modes are configured for the same SRv6 TE policy, the SBFD takes effect.

Examples

# Enable SBFD for SRv6 TE policy 1.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] sbfd enable

Related commands

bfd srv6-encapsulation-mode encaps (High Availability Command Reference)

display segment-routing ipv6 te sbfd

sbfd local-discriminator (High Availability Command Reference)

srv6-policy sbfd

segment-list

Use segment-list to create a SID list and enter its view, or enter the view of an existing SID list.

Use undo segment-list to delete a SID list and all the configuration in the SID list.

Syntax

segment-list segment-list-name

undo segment-list segment-list-name

Default

No SID lists exist.

Views

SRv6 TE view

Predefined user roles

network-admin

Parameters

segment-list-name: Specifies the SID list name, a case-sensitive string of 1 to 128 characters.

Examples

# Create a SID list named abc and enter its view.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] segment-list abc

[Sysname-srv6-te-sl-abc]

service-class

Use service-class to set a service class value for an SRv6 TE policy.

Use undo service-class to restore the default.

Syntax

service-class service-class-value

undo service-class

Default

No service class value is set for an SRv6 TE policy.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Parameters

service-class-value: Specifies a service class value in the range of 0 to 7. The smaller the service class value, the lower the SRv6 TE policy priority. An SRv6 TE policy that is not assigned a service class value has the lowest priority.

Usage guidelines

The device compares the service class value of the traffic with the service class values of SRv6 TE policies and forwards the traffic to a matching tunnel. The device uses the following rules to select an SRv6 TE policy to forward the traffic:

· If the traffic matches only one SRv6 TE policy, the device uses this SRv6 TE policy.

· If the traffic matches multiple SRv6 TE policies, the device selects an SRv6 TE policy based on the flow forwarding mode:

¡ If there is only one flow and flow-based load sharing is used, the device randomly selects a matching SRv6 TE policy for packets of the flow.

¡ If there are multiple flows or if there is one flow but packet-based load sharing is used, the device uses all matching SRv6 TE policies to load share the packets.

For more information about the flow identification and load sharing mode, see the ip load-sharing mode command.

· If the traffic does not match any SRv6 TE policy, the device randomly selects an SRv6 TE policy from all SRv6 TE policies with the lowest forwarding priority.

To set a service class value for traffic, use the remark service-class command in traffic behavior view.

Examples

# Set the service class value to 5 for SRv6 TE policy.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] service-class 5

Related commands

ip load-sharing mode (Layer 3—IP Services Command Reference)

remark service-class (ACL and QoS Command Reference)

shutdown

Use shutdown to shut down an SRv6 TE policy.

Use undo shutdown to bring up an SRv6 TE policy.

Syntax

shutdown

undo shutdown

Default

An SRv6 TE policy is not administratively shut down.

Views

SRv6 TE policy view

Predefined user roles

network-admin

Usage guidelines

If multiple SRv6 TE policies exist on the device, you can shut down unnecessary SRv6 TE policies to prevent them from affecting traffic forwarding.

Examples

# Shut down SRv6 TE policy 1.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] shutdown

snmp-agent trap enable srv6-policy

Use snmp-agent trap enable srv6-policy to enable SNMP notifications for SRv6 TE policies.

Use undo snmp-agent trap enable srv6-policy to disable SNMP notifications for SRv6 TE policies.

Syntax

snmp-agent trap enable srv6-policy

undo snmp-agent trap enable srv6-policy

Default

SNMP notifications for SRv6 TE policies are disabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

This command enables the device to send SNMP notifications about state changes and resource usage anomalies of SRv6 TE policies. For SNMP notifications to be sent correctly, you must also configure SNMP on the device. For more information about SNMP configuration, see the network management and monitoring configuration guide for the device.

SRv6 TE policy resources include the following:

· Number of SRv6 TE policy forwarding paths.

· Number of forwarding entry IDs of SRv6 TE policy groups.

· Number of forwarding entry IDs of SRv6 TE policies.

· Number of forwarding entry IDs of SID lists.

Examples

# Enable SNMP notifications for SRv6 TE policies.

<Sysname> system-view

[Sysname] snmp-agent trap enable srv6-policy

source-address

Use source-address to specify a source address for an SRv6 TE policy.

Use undo source-address to remove the source address configuration from an SRv6 TE policy.

Syntax

source-address { ipv4 ipv4-address | ipv6 ipv6-address }

undo source-address

Default

No source address is specified for an SRv6 TE policy.

Views

SRv6 TE policy view

Predefined user roles

network-admin

mdc-admin

Parameters

ipv4 ipv4-address: Specifies a source IPv4 address. Specify this option when the SRv6 TE policy uses an endpoint IPv4 address. This option is supported only in R5212P01 and later.

ipv6 ipv6-address: Specifies a source IPv6 address. Specify this option when the SRv6 TE policy uses an endpoint IPv6 address.

Usage guidelines

Use this command to specify a source address only for BFD echo and SBFD packets in the SRv6 TE policy scenario.

In the SRv6 TE policy scenario, when BFD in echo packet mode is enabled, you must use the bfd echo or srv6-policy bfd echo command to specify the source address of the BFD session on the source node of the SRv6 TE policy. The specified address is also the destination address of BFD echo packets.

In system view, you can use the bfd echo-source-ip or bfd echo-source-ipv6 command to specify the source address of BFD echo packets for all BFD sessions in echo packet mode on the device. If you do not use the bfd echo-source-ip or bfd echo-source-ipv6 command, the device will use the BFD session source address specified by using the bfd echo or srv6-policy bfd echo command as the source address of BFD echo packets. In this case, the same address is used as both the source and destination addresses of BFD echo packets. BFD echo session establishment will fail if the network is deployed with security devices that have features such as uRPF, because the features falsely treat the BFD echo packets as illegal packets and intercept them.

To resolve the above issue, use this command to specify a packet source address for each SRv6 TE policy.

When SBFD or BFD in echo packet mode is enabled for an SRv6 TE policy, you can use this command to specify a source address for BFD or SBFD session packets.

For a BFD session in echo packet mode, the device selects a source address for BFD echo packets in the following order:

1. The packet source address specified by using the source-address command.

2. The packet source address specified by using the bfd echo-source-ip or bfd echo-source-ipv6 command.

3. The BFD session source address specified by using the bfd echo command.

4. The BFD session source address specified by using the srv6-policy bfd echo command.

For an SBFD session, the device selects a source address for SBFD packets in the following order:

1. The packet source address specified by using the source-address command.

2. The address specified by using the bfd echo-source-ip or sbfd source-ipv6 command.

Examples

# Specify source address 1::.2 for BFD and SBFD session packets in an SRv6 TE policy.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] policy 1

[Sysname-srv6-te-policy-1] source-address ipv6 1::2

Related commands

bfd echo-source-ip (High Availability Command Reference)

bfd echo-source-ipv6 (High Availability Command Reference)

bfd echo

sbfd

srv6-policy bfd echo

sr-policy steering

Use sr-policy steering to configure the traffic steering mode for SRv6 TE policies.

Use undo sr-policy steering to restore the default.

Syntax

sr-policy steering { disable | policy-based }

undo sr-policy steering

Default

The device steering data packets to SRv6 TE policies based on colors of the packets.

Views

BGP instance view

Predefined user roles

network-admin

Parameters

disable: Disables color-based traffic steering to an SRv6 TE policy.

policy-based: Steers traffic to an SRv6 TE policy based on a tunnel policy. If you specify this keyword, the device steers traffic based on the bound policy, color, and tunnel load sharing policy in a descending order of priority.

Usage guidelines

The following traffic steering modes are available for SRv6 TE policies:

· Based on color—The device searches for an SRv6 TE policy that has the same color and endpoint address as the color and next hop address of a BGP route. If a matching SRv6 TE policy exists, the device recurses the BGP route to that SRv6 TE policy. Then, when the device receives packets that match the BGP route, it forwards the packets through the SRv6 TE policy.

· Based on tunnel policy—On an IP L3VPN over SRv6 or EVPN L3VPN over SRv6 network, configure a tunnel policy that uses the SRv6 TE policy as the public tunnel to carry the packets of a VPN instance. For more information about the tunnel policy configuration, see MPLS Configuration Guide.

This command does not take effect on L2VPN networks.

Examples

# Configure the SRv6-TE traffic steering mode as tunnel policy.

<Sysname> system-view

[Sysname] bgp 100

[Sysname-bgp-default] sr-policy steering policy-based

srv6-policy alarm-threshold

Use srv6-policy alarm-threshold to configure the alarm thresholds for resource usage of SRv6 TE policies.

Use undo srv6-policy alarm-threshold to restore the default.

Syntax

srv6-policy { forwarding-path | policy | policy-group | segment-list } alarm-threshold upper-limit upper-limit-value lower-limit lower-limit-value

undo srv6-policy { forwarding-path | policy | policy-group | segment-list } alarm-threshold

Default

The upper and lower alarm thresholds are 80% and 75% for all resources of SRv6 TE policies.

Views

SRv6 TE view

Predefined user roles

network-admin

Parameters

forwarding-path: Specifies the number of SRv6 TE policy forwarding paths.

policy: Specifies the number of forwarding entry IDs assigned to SRv6 TE policies.

policy-group: Specifies the number of forwarding entry IDs assigned to SRv6 TE policy groups.

segment-list: Specifies the number of forwarding entry IDs assigned to SID lists.

upper-limit upper-limit-value: Specifies the upper threshold in percentage for SRv6 TE policy resources. The value range for the upper-limit-value argument is 1 to 100.

lower-limit lower-limit-value: Specifies the lower threshold in percentage for SRv6 TE policy resources. The value range for the upper-limit-value argument is 1 to 100.

Usage guidelines

When the number of SRv6 TE policy resources crosses the upper threshold or lower threshold, the device generates log and alarm information. The administrator can then obtain the resource usage status of SRv6 TE policies.

Before configuring this command, enable the logging and SNMP notifications features for SRv6 TE policies.

To view resource usage for the current SRv6 TE policy, use the display segment-routing ipv6 te policy statistics command.

Examples

# Configure the upper and lower thresholds as 90% and 60% for the number of forwarding entry IDs assigned to SID lists.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] srv6-policy segment-list alarm-threshold upper-limit 90 lower-limit 60

Related commands

display segment-routing ipv6 te policy statistics

srv6-policy log enable

srv6-policy autoroute enable

Use srv6-policy autoroute enable to enable automatic route advertisement for SRv6 TE policies.

Use undo srv6-policy autoroute enable to disable automatic route advertisement for SRv6 TE policies.

Syntax

In IS-IS IPv6 address family view:

srv6-policy autoroute enable [ level-1 | level-2 ]

undo srv6-policy autoroute enable

In OSPFv3 view:

srv6-policy autoroute enable

undo srv6-policy autoroute enable

Default

Automatic route advertisement for SRv6 TE policies is disabled.

Views

IS-IS IPv6 address family view

OSPFv3 view

Predefined user roles

network-admin

Parameters

level-1: Enables automatic route advertisement for Level-1 IS-IS SRv6 TE policies.

level-2: Enables automatic route advertisement for Level-2 IS-IS SRv6 TE policies.

Usage guidelines

This command advertises SRv6 TE policies to IGP (IPv6 IS-IS or OSPFv3) for route computation.

If you do not specify the level-1 or level-2 keyword in IS-IS IPv6 address family view, this command enables automatic route advertisement for all levels of IS-IS SRv6 TE policies.

If you do not specify the isis or ospfv3 keyword, both OSPFv3 and IPv6 IS-IS will include the SRv6 TE policy tunnel in route computation.

For this command to take effect on an SRv6 TE policy, you must also execute the autoroute enable command in the view of the SRv6 TE policy.

Examples

# Enable automatic route advertisement for SRv6 TE policies of IS-IS process 1.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] address-family ipv6

[Sysname-isis-1-ipv6] srv6-policy autoroute enable

# Enable automatic route advertisement for SRv6 TE policies of OSPFv3 process 1.

<Sysname> system-view

[Sysname] ospfv3 1

[Sysname-ospfv3-1] srv6-policy autoroute enable

Related commands

autoroute enable

srv6-policy backup hot-standby enable

Use srv6-policy backup hot-standby enable to enable hot standby for all SRv6 TE policies.

Use undo srv6-policy backup hot-standby enable to disable hot standby for all SRv6 TE policies.

Syntax

srv6-policy backup hot-standby enable [ multilevel-backup ]

undo srv6-policy backup hot-standby enable

Default

Hot standby is disabled for all SRv6 TE policies.

Views

SRv6 TE view

Predefined user roles

network-admin

Parameters

Usage guidelines

When the hot standby feature is enabled, the numbers of the main and backup paths depend on the configuration if multiple candidate paths exist.

Examples

# Enable hot standby for all SRv6 TE policies.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] srv6-policy backup hot-standby enable

Related commands

backup hot-standby

srv6-policy bfd echo

Use srv6-policy bfd echo to enable the echo packet mode BFD for all SRv6 TE policies.

Use undo srv6-policy bfd echo to disable the echo packet mode BFD for all SRv6 TE policies.

Syntax

srv6-policy bfd echo { source-ip ipv4-address | source-ipv6 ipv6-address } [ template template-name ] [ backup-template backup-template-name ]

undo srv6-policy bfd echo

Default

The echo packet mode BFD is disabled for all SRv6 TE policies.

Views

SRv6 TE view

Predefined user roles

network-admin

Parameters

source-ipv4 ipv4-address: Specifies the source IPv4 address of the BFD session. Specify this option when the SRv6 TE policy uses an endpoint IPv4 address. This option is supported only in R5212P01 and later.

source-ipv6 ipv6-address: Specifies the source IPv6 address of the BFD session. Specify this option when the SRv6 TE policy uses an endpoint IPv6 address.

template template-name: Specifies a BFD session parameter template by its name, a case-sensitive string of 1 to 63 characters. If you do not specify this option, the BFD session uses multihop BFD session settings configured in system view.

Usage guidelines

If you do not specify the source-ipv4 ipv4-address or source-ipv6 ipv6-address option in the bfd echo command for an SRv6 TE policy, you must enable the echo packet mode BFD globally in SRv6 TE view. Otherwise, the device cannot establish a BFD session for the SRv6 TE policy.

The device supports the echo packet mode BFD and the SBFD for an SRv6 TE policy. If both modes are configured for the same SRv6 TE policy, the SBFD takes effect.

Before you execute this command, execute the bfd echo-source-ip or bfd echo-source-ipv6 command on the local device to specify the source IPv6 address for echo packets.

When BFD echo packets use an IPv4 address as the source address, they can only be encapsulated using the Encaps method. When the system encapsulates such a packet, it adds an IPv4 packet header after the IPv6 packet header, and uses the specified IPv4 destination address as the destination address of the IPv4 packet header.

Examples

# Enable the echo packet mode BFD for all SRv6 TE policies, and specify the source IPv6 address of the BFD session as 11::11.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] srv6-policy bfd echo source-ipv6 11::11

Related commands

bfd echo

bfd echo-source-ip (High Availability Command Reference)

bfd echo-source-ipv6 (High Availability Command Reference)

display segment-routing ipv6 te bfd

srv6-policy bfd first-fail-timer

Use srv6-policy bfd first-fail-timer to configure the timer that delays reporting the first BFD or SBFD session establishment failure to an SRv6 TE policy.

Use undo srv6-policy bfd first-fail-timer to restore the default.

Syntax

srv6-policy bfd first-fail-timer seconds

undo srv6-policy bfd first-fail-timer

Default

The timer that delays reporting the first BFD or SBFD session establishment failure to an SRv6 TE policy is 60 seconds.

Views

SRv6 TE view

Predefined user roles

network-admin

Parameters

seconds: Specifies the timeout time that reports the first BFD or SBFD session establishment failure to an SRv6 TE policy. The value range for this argument is 1 to 600 seconds. The default value is 60.

Usage guidelines

The device attempts to establish a BFD or SBFD session to detect an SRv6 TE policy when all the following conditions exist:

· The SRv6 TE policy is in up state.

· The SID list of the SRv6 TE policy is in up state.

· BFD or SBFD is enabled for the SRv6 TE policy.

When the BFD/SBFD session detection timer expires, if the BFD or SBFD session is not in up state, the device considers that the BFD or SBFD session establishment fails. The device does not immediately report the failure to the SRv6 TE policy. You can configure this command to set a delay timer for reporting the session establishment failure. The device will report the session establishment failure to the SRv6 TE policy upon expiration of the delay timer.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Configure the timer that delays reporting the first BFD or SBFD session establishment failure to an SRv6 TE policy as 30 seconds.

<Sysname> system-view

[Sysname] segment-routing ipv6

[Sysname-segment-routing-ipv6] traffic-engineering

[Sysname-srv6-te] srv6-policy bfd first-fail-timer 30

srv6-policy bfd trigger path-down enable

Use srv6-policy bfd trigger path-down enable to enable BFD session down events to trigger SRv6 TE policy path switchover globally.

Use undo srv6-policy bfd trigger path-down enable to disable BFD session down events to trigger SRv6 TE policy path switchover globally.

Syntax

srv6-policy bfd trigger path-down enable

undo srv6-policy bfd trigger path-down enable

Default

The feature for triggering SRv6 TE policy path switchover with BFD session down events is disabled globally.