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| Title | Size | Download |
|---|---|---|
| 02-HH3C-IFQOS2-MIB | 71.24 KB |
HH3C-IFQOS2-MIB
About this MIB
Use this MIB to configure or obtain settings for the following modules:
· Hardware queuing.
· Software queuing.
· Rate limit.
· CAR.
· GTS.
· WRED.
· Port priority and priority trust mode.
· Priority map.
CAR includes aggregate CAR and three-color CAR. WRED includes table-based WRED and interface WRED.
WRED
WRED avoids global TCP synchronization by randomly dropping packets before a queue is full. WRED sets an upper threshold and lower threshold for each queue, and processes the packets in a queue as follows:
· When the queue size is shorter than the lower threshold, no packet is dropped.
· When the queue size reaches the upper threshold, all subsequent packets are dropped.
· When the queue size is between the lower threshold and the upper threshold, the received packets are dropped at random. The drop probability in a queue increases along with the queue size under the maximum drop probability.
WRED can discard packets based on the IP precedence, DSCP, or MPLS EXP value and selectively discard low-priority packets.
Through combining WRED with WFQ, the flow-based WRED can be realized.
WRED has the following types:
· Port-based WRED: Applies WRED to all packets on a port.
· Queue-based WRED: Applies WRED to only packets on WRED-enabled queues.
· Drop level-based WRED: Applies different WRED parameters to packets with different WRED parameters.
· ACL-based WRED: Applies different WRED parameters to packets matching different ACLs.
· 802.1p-based WRED: Applies different WRED parameters to packets with different 802.1p priorities.
· EXP-based WRED: Applies different WRED parameters to packets with different EXP priorities.
· ATM CLP-based WRED: Applies different WRED parameters to packets with different CLP priorities.
· DSCP-based WRED: Applies different WRED parameters to packets with different DSCP values.
· IP precedence-based WRED: Applies different WRED parameters to packets with different IP precedences.
· FR DE-based WRED: Applies different WRED parameters to packets with different DE bit settings.
ComwareV500R002 supports two WRED configuration approaches:
· Interface configuration—Configure WRED parameters on an interface or PVC and enable WRED.
· WRED table configuration—Configure a WRED table in system view and then apply the WRED table to an interface. A maximum number of 64 WRED tables is supported.
Aggregate CAR
Some switch models support aggregate CAR.
An aggregate CAR action is created globally. It can be directly applied to interfaces or used in the traffic behaviors associated with different traffic classes to police multiple traffic flows as a whole. The total rate of the traffic flows must conform to the traffic policing specifications set in the aggregate CAR action.
MIB file name
hh3c-ifqos2.mib
Notifications
The following information describes the notifications included in the HH3C-IFQOS2-MIB module.
hh3cIfQoSCoppDropPktAlarm
Basic information
|
OID |
Event |
Type |
Severity |
Recovery notification |
Default status |
|
1.3.6.1.4.1.25506.2.65.1.16.0.17 |
Packets are dropped by CAR on the control plane |
Error |
Major |
hh3cIfQoSCoppDropPktAlarmRecover |
OFF |
Notification triggers
The notification is generated when packets are dropped by CAR on the control plane.
System impact
Packets sent to the control plane are dropped by CAR.
Status control
ON
· CLI: Use the snmp-agent trap enable qos command.
OFF
· CLI: Use the undo snmp-agent trap enable qos command.
Objects
|
OID (object name) |
Description |
Index nodes |
Type |
Value range |
|
1.3.6.1.4.1.25506.2.65.1.15.1 (hh3cIfQoSChassis) |
Chassis number |
N/A |
Integer32 |
0 to 65534 |
|
1.3.6.1.4.1.25506.2.65.1.15.2 (hh3cIfQoSSlot) |
Slot number |
N/A |
Integer32 |
0 to 65534 |
|
1.3.6.1.4.1.25506.2.65.1.15.8 (hh3cIfQoSCoppProtocol) |
Protocol type |
N/A |
OCTET STRING |
SIZE (1 to 31) |
|
1.3.6.1.4.1.25506.2.65.1.15.9 (hh3cIfQoSBandwidth) |
Bandwidth |
N/A |
Unsigned32 |
Standard MIB values. |
|
1.3.6.1.4.1.25506.2.65.1.15.13 (hh3cIfQoSBandwidthUnit) |
Bandwidth unit |
N/A |
INTEGER |
· unitUnavailable (0) · unitAbsolute (1) · unitAbsolutePPS (4) |
Recommended action
Delete the CAR configuration.
hh3cIfQoSCoppDropPktAlarmRecover
Basic information
|
OID |
Event |
Type |
Severity |
Recovery notification |
Default status |
|
1.3.6.1.4.1.25506.2.65.1.16.0.18 |
Packets dropped by CAR on the control plane have been recovered |
Recovery |
Major |
- |
OFF |
Notification triggers
The notification is generated when packets dropped by CAR on the control plane have been recovered.
System impact
None.
Status control
ON
· CLI: Use the snmp-agent trap enable qos command.
OFF
· CLI: Use the undo snmp-agent trap enable qos command.
Objects
|
OID (object name) |
Description |
Index nodes |
Type |
Value range |
|
1.3.6.1.4.1.25506.2.65.1.15.1 (hh3cIfQoSChassis) |
Chassis number |
N/A |
Integer32 |
0 to 65534 |
|
1.3.6.1.4.1.25506.2.65.1.15.2 (hh3cIfQoSSlot) |
Slot number |
N/A |
Integer32 |
0 to 65534 |
|
1.3.6.1.4.1.25506.2.65.1.15.8 (hh3cIfQoSCoppProtocol) |
Protocol type |
N/A |
OCTET STRING |
SIZE (1 to 31) |
|
1.3.6.1.4.1.25506.2.65.1.15.9 (hh3cIfQoSBandwidth) |
Bandwidth |
N/A |
Unsigned32 |
Standard MIB values. |
|
1.3.6.1.4.1.25506.2.65.1.15.13 (hh3cIfQoSBandwidthUnit) |
Bandwidth unit |
N/A |
INTEGER |
· unitUnavailable (0) · unitAbsolute (1) · unitAbsolutePPS (4) |
Recommended action
No action is required.
