10GE

Ten-GigabitEthernet

1DM

One-way Delay Measurement

3DES

Triple Data Encryption Standard

6PE

IPv6 Provider Edge

A

Return

AAA

Authentication, Authorization and Accounting

AAL

ATM Adaptation Layer

AAL5

ATM Adaptation Layer 5

ABR

Area Border Router

AC

Access Controller

AC

Access Category

AC

Attachment Circuit

AC Name

Access Concentrator Name

ACA

Acquire Change Authorization

ACCM

Async-Control-Character-Map

ACFC

Address-and-Control-Field-Compression

ACFP

Application Control Forwarding Protocol

Ack

Acknowledgment

ACL

Access Control List

ACR

Adaptive Clock Recovery

ACS

AS Control Server

ACS

Auto-Configuration Server

ACSEI

ACFP Client and Server Exchange Information

AD

Active Directory

ADM

ATM Direct Mapping

ADPCM

Adaptive Differential Pulse Code Modulation

ADSL

Asymmetric Digital Subscriber Line

ADVPN

Auto Discovery Virtual Private Network

AER

AS Edge Router

AES

Advanced Encryption Standard

AF

Assured Forwarding

AFI

Address Family Identifier

AFI

Authority and Format Identifier

AFT

Address Family Translation

AFTR

Address Family Transition Router

AH

Authentication Header

AIFSN

Arbitration Inter Frame Spacing Number

AIS

Alarm Indication Signal

AIW

APPN Implementers Workshop

AKM

Authentication and Key Management

ALG

Application Level Gateway

AM

Analog Modem

AMB

Active Main Board

AMI

Alternate Mark Inversion

A-MPDU

Aggregate MAC Protocol Data Unit

A-MSDU

Aggregate MAC Service Data Unit

ANCP

Access Node Control Protocol

ANI

Adaptive Noise Immunity

ANSI

American National Standards Institute

AP

Agreement Protocol

AP

Access Point

APD

Avalanche Photo Diode

APDB

Access Point Information Database

APP

Application Protocol

APPN

Advanced Peer-to-Peer Networking

ARP

Address Resolution Protocol

ARQ

Automatic Repeat Request

AS

Autonomous System

ASBR

Autonomous System Boundary Router

ASM

Any-Source Multicast

ASPF

Application Specific Packet Filter

ASPF

Advanced Stateful Packet Filter

AT

AppleTalk

ATD

Attribute Discovery

ATM

Asynchronous Transfer Mode

AU

Administration Unit

AUG

Administration Unit Group

AU-PTR

Administration Unit Pointer

AVF

Active Virtual Forwarder

AVF

Appointed VLAN-x Forwarder

AVP

Attribute Value Pair

B

Return

B4

Basic Bridging BroadBand

B8ZS

Bipolar 8-zero substitution

BA

Block Acknowledgment

BAS

Broadband Access Server

BB_Credit

Buffer-to-Buffer Credit

BC

Bandwidth Constraint

BC

Boundary Clock

BCB

Backbone Core Bridge

BDI

Backward Defect Indication

BDR

Backup Designated Router

BE

Best Effort

BEB

Backbone Edge Bridge

BECN

Backward Explicit Congestion Notification

BF

Build Fabric

BFD

Bidirectional Forwarding Detection

BGP

Border Gateway Protocol

BIDIR-PIM

Bidirectional Protocol Independent Multicast

BIMS

Branch Intelligent Management System

BIP

Broadcast Integrity Protocol

BIP

Bit-Interleaved Parity

BITS

Building Integrated Timing Supply System

B-MAC

Backbone MAC

BMC

Best Master Clock

BOOTP

Bootstrap Protocol

BPDU

Bridge Protocol Data Unit

BQ

Bandwidth Queuing

BRAS

Broadband Remote Access Server

BRI

Basic Rate Interface

BRPC

Backward-Recursive PCE-Based Computation

BSB

Blockade State Block

BSM

Bootstrap Message

BSMF

Bootstrap Message Fragment

BSR

Bootstrap Router

BSS

Basic Service Set

BSV

BRI S/T Voice

BT

BitTorrent

B-VLAN

Backbone VLAN

C

Return

CA

Connectivity Association

CA

Certificate Authority

CAC

Connect Admission Control

CAMS

Comprehensive Access Management Server

CAPWAP

Controlling and Provisioning of Wireless Access Point

CAR

Committed Access Rate

CB

Customer Bridge

CBQ

Class Based Queuing

CBR

Constant Bit Rate

CBS

Committed Burst Size

C-BSR

Candidate-BSR

CBT

Core-Based Tree

CBWFQ

Class Based Weighted Fair Queuing

CC

Control Channel

CC

Common Criteria

CC

Call Control

CC

Continuity Check

CCA

Clear Channel Assessment

CCC

Circuit Cross Connect

CCM

Continuity Check Message

C-DCC

Circular DCC

CDCP

S-Channel Discovery and Configuration Protocol

CDP

Cisco Discovery Protocol

CDR

Call Detail Record

CDV

Cell Delay Variation

CE

Customer Edge

CED

Called Station Identifier

CEDCNG

Called Station Identifier

CEE

Converged Enhanced Ethernet

CEM

Circuit Emulation

CEM Class

Circuit Emulation Class

CESoPSN

Circuit Emulation Services over PSN

CFD

Connectivity Fault Detection

CFI

Canonical Format Indicator

CFM

Connectivity Fault Management

CHAP

Challenge Handshake Authentication Protocol

CID

Calling Identity Delivery

CIDR

Classless Inter-Domain Routing

CIR

Committed Information Rate

CIR ALLOW

Committed Information Rate ALLOW

CIST

Common and Internal Spanning Tree

CLC

Channel Link Control

CLI

Command Line Interface

CLI

Calling Line Identification

CLNP

Connection-Less Network Protocol

CLP

Cell Loss Priority

CMC

Call Management Center

CNG

Comfortable Noise Generation

CNG

Calling Tone

CNGCED

Calling Tone

CO

Central Office

COPS

Common Open Policy Service

CoS

Class of Service

CPE

Customer Premises Equipment

CPOS

Channelized POS

CPS

Certification Practice Statement

CPTone

Call Progress Tone

CQ

Custom Queuing

CR

Constraint-based Routing

CRC

Cyclic Redundancy Code

CRC

Cyclic Redundancy Check

CRC4

Cyclic Redundancy Check 4

CRL

Certificate Revocation List

CRLDP

Constraint-based Routed Label Distribution Protocol

CRLSP

Constraint-based Routed Label Switched Paths

C-RP

Candidate-RP

CS

Class Selector

CSMA/CD

Carrier Sense Multiple Access/Collision Detect

CSNP

Complete Sequence Number PDU

CSPF

Constraint-based Shortest Path First

CST

Common Spanning Tree

CSV

Comma Separated Value

CT

Class Type

CTR

Counter mode

CTS

Clear to Send

CUG

Closed User Group

CV

Connectivity Verification

CWMP

CPE WAN Management Protocol

D

Return

DAC

Digital to Analog Converter

DAD

Duplicate Address Detection

DAE

Dynamic Authorization Extensions

DAR

Deeper Application Recognition

DCBX

Data Center Bridging Exchange Protocol

DCC

Dial Control Center

DCD

Data Carrier Detection

DCE

Data Circuit-terminating Equipment

DCE

Data Center Ethernet

DCF

Distributed Coordination Function

DCN

Data Communication Network

DCR

Differential Clock Recovery

DD

Database Description

DDN

Digital Data Network

DDNS

Dynamic Domain Name System

DDoS

Distributed Denial of Service

DDR

Dial-on-Demand Routing

DDT

Delegated Database Tree

DE

Discard Eligibility

DED

Designated Edge Device

DER

Distinguished Encoding Rules

DF

Designated Forwarder

DGAF

Downstream Group-Addressed Forwarding

DH

Diffie-Hellman

DHCP

Dynamic Host Configuration Protocol

DHCPv6

Dynamic Host Configuration Protocol for IPv6

DID

Device ID

DID

Direct Inward Dialing

DiffServ

Differentiated Service

DIS

Designated IS

DLCI

Data Link Connection Identifier

DLDP

Device Link Detection Protocol

DLSw

Data Link Switching

DM

Diagnostic and Monitoring

DM

Delay Measurement

DMC

Device Management Controller

DMM

Delay Measurement Message

DMR

Delay Measurement Reply

DMZ

Demilitarized Zone

DN

Distinguished Name

DN

Directory Number

DNAT

Destination Network Address Translation

DND

Do-not Disturb

DNS

Domain Name System

DNU

Do Not Use for synchronization

DoD

Downstream On Demand

DoS

Denial of Service

DP

Drop Profile

DPD

Dead Peer Detection

DPI

Deep Packet Inspection

DR

Designated Router

DRB

Designated Routing Bridge

DRE

Data Redundancy Elimination

DS

Differentiated Services

DSA

Digital Signature Algorithm

DSCP

Differentiated Services Code Point

DSL

Digital Subscriber Line

DS-Lite

Dual Stack Lite

DSU

Data Service Unit

DTD

Document Type Definition

DTE

Data Terminal Equipment

DTIM

Delivery Traffic Indication Message

DTLS

Datagram Transport Layer Security

DTMF

Dual Tone Multi-Frequency

DU

Downstream Unsolicited

DUID

DHCP Unique Identifier

DUID-LL

DUID Based on Link-layer Address

D-V

Distance Vector

DVMRP

Distance Vector Multicast Routing Protocol

DVPN

Dynamic Virtual Private Network

DWDM

Dense Wavelength Division Multiplexing

E

Return

E2ETC

End-to-End Transparent Clock

EAA

Embedded Automation Architecture

EACL

Enhanced ACL

EAD

Endpoint Admission Defense

EAIS

Ethernet Alarm Indication Signal

EAN

Ethernet Access Node

EAP

Extensible Authentication Protocol

EAPOL

Extensible Authentication Protocol over LAN

EAPOL KCK

EAPOL-Key Confirmation Key

EAPOL KEK

EAPOL-Key Encryption Key

EAP-TLS

Extensible Authentication Protocol -Transport Layer Security

EBS

Excess Burst Size

ECDSA

Elliptic Curve Digital Signature Algorithm

ECM

Encapsulated Control Message

ECM

Error Correction Mode

ECN

Explicit Congestion Notification

ECP

Edge Control Protocol

ECT

Equal Cost Tree

ECWmax

Exponent form of CWmax

ECWmin

Exponent form of CWmin

ED

Edge Device

EDCA

Enhanced Distributed Channel Access

EEE

Energy Efficient Ethernet

EF

Expedited Forwarding

EFM

Ethernet First Mile

EGP

Exterior Gateway Protocol

EID

Endpoint Identifier

EIRP

Effective Isotropic Radiated Power

EM

Event Monitor

EMO

Endpoint Mobile Office

ENDC

Enhanced Neighbor Discovery Client

ENDC

EVI Neighbor Discovery Client

End-Of-RIB

End of Routing-Information-Base

ENDP

Enhanced Neighbor Discovery Protocol

ENDP

EVI Neighbor Discovery Protocol

ENDS

EVI Neighbor Discovery Server

ENDS

Enhanced Neighbor Discovery Server

ENUM

Telephone Number Mapping

EOAM

Ethernet Operation, Administration and Maintenance

EoPW

Ethernet over Pseudo Wire

EPC

External Path Computation

ER

Edge Relay

ERPS

Ethernet Ring Protection Switching

ERT

Export Route-target

ES

End System

ESF

Extended Super Frame

ESMC

Ethernet Synchronous Message Channel

ESN

Extended Sequence Number

ESP

Encapsulating Security Payload

ESS

Extended Service Set

ESS

Exchange Switch Support

ETR

Egress Tunnel Router

ETS

Enhanced Transmission Selection

ETSI

European Telecommunications Standards Institute

EUI

Extended Unique Identifier

EUI-64

64-bit Extended Unique Identifier

EVB

Edge Virtual Bridging

Event MIB

Event Management Information Base

EVFP

Exchange Virtual Fabrics Parameter

EVI

Ethernet Virtual Interconnect

F

Return

FA

Foreign Agent

FA

Foreign-AC

FAC

Feature Access Code

FAS

Frame Alignment Signal

FC

Forwarding Class

FC

Fibre Channel

FCF

FCoE Forwarder

FCM

Fast Connect Modem

FCoE

Fibre Channel over Ethernet

FCS

Fabric Configuration Server

FCS

Frame Check Sequence

FDB

Forwarding Database

FDMI

Fabric Device Management Interface

FE

Fast Ethernet

FEAC

Far End Alarm and Control signal

FEC

Forwarding Equivalence Class

FECN

Forward Explicit Congestion Notification

FEP

Front End Processor

FF

Fixed-Filter

FFD

Fast Failure Detection

FFT

Fast Fourier Transform

FG

Forwarding Group

FHR

First Hop Router

FIB

Forwarding Information Base

FIFO

First In First Out Queuing

FIFO

First In First Out

FIP

FCoE Initialization Protocol

FIP Snooping

FCoE Initialization Protocol Snooping

FIPS

Federal Information Processing Standards

FNG

Fault Notification Generator

FP

Forwarding Profile

FPMA

Fabric Provided MAC Address

FQ

Fair Queuing

FQDN

Fully Qualified Domain Name

FR

Frame Relay

FRR

Fast Reroute

FRTP

Frame Relay Traffic Policing

FRTS

Frame Relay Traffic Shaping

FRU

Field Replaceable Unit

FS

Forced Switch

FSK

Frequency Shift Keying

FSPF

Fabric Shortest Path First

FT

Fast BSS Transition

FT

Fault Tolerance

FTN

FEC to NHLFE map

FTP

File Transfer Protocol

FXO

Foreign Exchange Office

FXS

Foreign Exchange Station

G

Return

GARP

Generic Attribute Registration Protocol

GAS

Generic advertisement service

GAS

Generic Advertisement Service

GDOI

Group Domain of Interpretation

GE

Gigabit Ethernet

GI

Guard Interval

GK

GateKeeper

GM

Group Member

GM

Grandmaster Clock

GMK

Group Master Key

GNE

Gateway Network Element

GNS

Get Nearest Server

GOLD

Generic OnLine Diagnostics

GPS

Global Positioning System

GR

Graceful Restart

GRE

Generic Routing Encapsulation

Group Domain VPN

Group Domain Virtual Private Network

GSMPv3

General Switch Management Protocol Version 3

GTC

Generic Token Card

GTK

Group Temporal Key

GTP

GPRS Tunneling Protocol

GTP-U

GPRS Tunneling Protocol User

GTS

Generic Traffic Shaping

GTSM

Generalized TTL Security Mechanism

GVRP

GARP VLAN Registration Protocol

GW

Gateway

H

Return

HA

Home-AC

HA

Home Agent

HABP

HW Bypass Protocol

HBA

Host Bus Adapter

HDB3

High-density bipolar 3

HDLC

High-level Data Link Control

HDSL

High-speed Digital Subscriber Line

HGMP

HW Group Management Protocol

HGMPv2

HW Group Management Protocol version 2

HMAC

Hash-based Message Authentication Code

HoPE

Hierarchy of PE

HoVPN

Hierarchy of VPN

HQoS

Hierarchical Quality of Service

HTTP

Hypertext Transfer Protocol

HTTPS

Hypertext Transfer Protocol Secure

H-VPLS

Hierarchical VPLS

HWTACACS

HW Terminal Access Controller Access Control System

I

Return

IA

Identity Association

IACTP

Inter Access Controller Tunneling Protocol

IAD

Integrated Access Device

IANA

Internet Assigned Numbers Authority

IBGP

Internal Border Gateway Protocol

ICANN

Internet Corporation for Assigned Names and Numbers

ICMP

Internet Control Message Protocol

ICMPv6

Internet Control Message Protocol for IPv6

ICP

IMA Control Protocol

ICPIF

Calculated Planning Impairment Factor

ICRQ

Incoming Call Request

IDN

Integrated Digital Network

IDS

Intrusion Detection System

IE

Information Element

IE

Interconnect Element

IEEE

Institute of Electrical and Electronics Engineers

IETF

Internet Engineering Task Force

IGMP

Internet Group Management Protocol

IGMP Snooping

Internet Group Management Protocol Snooping

IGP

Interior Gateway Protocol

IGTK

Integrity Group Temporal Key

IIH

Intermediate System-to-Intermediate System Hello

IKE

Internet Key Exchange

IKEv2

Internet Key Exchange Version 2

ILM

Incoming Label Map

ILS

Internet Locator Service

IM

Instant Messaging

IMA

Inverse Multiplexing for ATM

iMC

Intelligent Management Center

IMSI

International Mobile Subscriber Identification Number

InARP

Inverse Address Resolution Protocol

IND

Inverse Neighbor Discovery

IntServ

Integrated Service

IPC

Inter-process Communication

IPE

Image Package Envelope

IPHC

IP Header Compression

IPN

IGTK Packet Number

IPng

IP Next Generation

IPoA

IP over ATM

IPoEoA

IP over Ethernet over ATM

IPS

Intrusion Prevention System

IPSec

IP Security

IPTA

IP Terminal Access

IPv6

Internet Protocol version 6

IPv6 MBGP

IPv6 Multicast BGP

IPv6 ND

IPv6 Neighbor Discovery

IPv6 PIM

IPv6 Protocol Independent Multicast

IPv6 PIM Snooping

IPv6 Protocol Independent Multicast Snooping

IPX

Internetwork Packet Exchange

IRDP

ICMP Router Discovery Protocol

IRF

Intelligent Resilient Framework

IS

Intermediate System

ISAKMP

Internet Security Association and Key Management Protocol

ISATAP

Intra-Site Automatic Tunnel Addressing Protocol

ISDN

Integrated Services Digital Network

I-SID

Backbone Service Instance Identifier

IS-IS

Intermediate System-to-Intermediate System

ISO

International Organization for Standardization

ISP

Internet Service Provider

ISPF

Incremental Shortest Path First

ISSU

In-Service Software Upgrade

IST

Internal Spanning Tree

ITA

Intelligent Target Accounting

ITR

Ingress Tunnel Router

ITSP

Internet Telephone Service Provider

ITU-T

International Telecommunication Union Telecommunication

IV

Initialization Vector

IVR

Interactive Voice Response

K

Return

KCK

EAPOL-Key Confirmation Key

KEK

key encrytion key

KEK

EAPOL-Key Encryption Key

KS

Key Server

L

Return

L2F

Layer 2 Forwarding

L2PT

Layer 2 Protocol Tunneling

L2TP

Layer 2 Tunneling Protocol

L2VPN

Layer 2 Virtual Private Network

L3VPN

Layer 3 Virtual Private Network

LAC

L2TP Access Concentrator

LACP

Link Aggregation Control Protocol

LACPDU

Link Aggregation Control Protocol Data Unit

LAN

Local Area Network

LB

Load Balance

LB

Label Base

LBM

Loopback Message

LBR

Loopback Reply

LC

Logic Channel

LCFO

Loop Current Feed Open

LCI

Logic Channel Identifier

LCP

Link Control Protocol

LDAP

Lightweight Directory Access Protocol

LDN

Local Dialing Number

LDP

Label Distribution Protocol

LDP ID

LDP Identifier

LDPC

Low-Density Parity Check

LER

Label Edge Router

LFI

Link Fragmentation and Interleaving

LFIB

Label Forwarding Information Base

LGS

Loop-start & Ground-start Signaling

LI

Leap Indicator

LLC

Logical Link Control

LLDP

Link Layer Discovery Protocol

LLDPDU

Link Layer Discovery Protocol Data Unit

LLDP-MED

Link Layer Discovery Protocol Media Endpoint Discovery

LLQ

Low Latency Queuing

LM

Loss Measurement

LMI

Local Management Interface

LMM

Loss Measurement Message

LMR

Loss Measurement Reply

LNS

L2TP Network Server

LO

Label-block Offset

LOCV

Loss of Connectivity Verification defect

LOS

Loss of Signal

LPU

Line Processing Unit

LPU Port

Line Processing Unit Port

LQR

Link Quality Reports

LR

Label Range

LR

Line Rate

LSA

Link State Advertisement

LSA

Link State Acknowledgment

LSAck

Link State Acknowledgment

LSDB

Link State DataBase

LSP

Link State PDU

LSP

Label Switched Path

LSPDU

Link State Protocol Data Unit

LSR

Label Switching Router

LSR

Link State Request

LSR

Link State Record

LSU

Link State Update

LT

Linktrace

LTM

Linktrace Message

LTR

Linktrace Reply

LTS

L2TP Tunnel Switch

LVF

Listening Virtual Forwarder

LZ

Lempel-Ziv compression

M

Return

M flag

Managed Address Configuration Flag

MA

Mobility Agent

MA

Maintenance Association

MAC

Message Authentication Code

MAC

Media Access Control

MACsec

Media Access Control Security

MAD

Multi-Active Detection

MAM

Maximum Allocation Model

MAN

Metropolitan Area Network

MAP

Mesh Access Point

MBGP

Multicast BGP

MBS

Maximum Burst Size

MC

Mobility Controller

MCC

Mobile Country Code

MCE

Multi-VPN-instance Customer Edge

MCS

Modulation and Coding Scheme

MCU

Multipoint Control Unit

MD

Multicast Domain

MD

Maintenance Domain

MDC

Multitenant Device Context

MDI

Medium Dependent Interface

MDL

Maintenance Data Link

mDNS

Multicast DNS

MDT

Multicast Distribution Tree

MED

Multi-Exit Discriminator

MEP

Maintenance association End Point

MFAS

Multiframe FAS

MFC

Multi-Frequency Compelled

MFF

MAC-Forced Forwarding

MFR

Multilink Frame Relay

MGCP

Media Gateway Control Protocol

MIB

Management Information Base

MIC

Message Integrity Check

MIMO

Multiple Input,Multiple Output

MIP

Mobile IP

MIP

Maintenance association Intermediate Point

MKA

MACsec Key Agreement

MKD

Mesh Key Distributor

MKI

Master Key Identifier

MLD

Multicast Listener Discovery Protocol

MLD Snooping

Multicast Listener Discovery Snooping

MLSP

Mobile Link Switch Protocol

MME

Management MIC IE

MNC

Mobile Network Code

MoH

Music on Hold

MOS

Mean Opinion Scores

MOTD

Message of The Day

MP

Maintenance Point

MP

Merge Point

MP_REACH_NLRI

Multiprotocol Reachable NLRI

MP_UNREACH_NLRI

Multiprotocol Unreachable NLRI

MP-BGP

Multiprotocol Border Gateway Protocol

MPDU

MAC Protocol Data Unit

MPE

Middle-Level PE

MPLS

Multiprotocol Label Switching

MPLS TE

Multiprotocol Label Switching Traffic Engineering

MPLS-TP

MPLS Transport Profile

MPP

Mesh Portal Point

MQC

Model QoS Command

MR

Merge Request

MR

Map Resolver

MRIB

Multicast Routing Information Base

MRP

Multiple Registration Protocol

MRPDU

MRP Protocol Data Unit

MRRA

Merge Request Resource Allocation

MRU

Maximum-Receive-Unit

MS

Map Server

MS

Manual Switch

MSCHAP

Microsoft Challenge Handshake Authentication Protocol

MSDP

Multicast Source Discovery Protocol

MSDU

MAC Service Data Unit

MSK

Multicast Session Key

MSOH

Multiplex Section Overhead

MSS

Maximum Segment Size

MSTI

Multiple Spanning Tree Instance

MSTP

Multiple Spanning Tree Protocol

MT

Multicast Tunnel

MTR

Multi-Topology Routing

MTU

Maximum Transmission Unit

MTU-s

Multi-Tenant Unit switch

MU

Mobile Unit

MVRP

Multiple VLAN Registration Protocol

MWI

Message Waiting Indication

N

Return

NA

Neighbor Advertisement

NAI

Network Access Identifier

NAPT

Network Address Port Translation

NAPT-PT

Network Address Port Translation-Protocol Translation

NAS

Network Access Server

NAS-ID

Network Access Server Identifier

NAS-Port-ID

Network Access Server Port Identifier

NAT

Network Address Translation

NAT-PT

Network Address Translation-Protocol Translation

NBAR

Network Based Application Recognition

NBMA

Non-Broadcast Multi-Access

NCP

Network Control Protocol

ND

Neighbor Discovery

NDA

NetStream Data Analyzer

NDE

NetStream Data Exporter

NDP

Neighbor Discovery Protocol

NDPP

Network Device Protection Profile

NE

Network Element

NET

Network Entity Title

NetBIOS

Network Basic Input/Output System

NETCONF

Network Configuration Protocol

NFAS

non–FAS

NFV

Network Function Virtualisation

NHLFE

Next Hop Label Forwarding Entry

NI

National ISDN

NIB

Nexthop Information Base

NII

Network International Identifier

NIST

National Institute of Standards and Technology

NIT

Not Initial Terminal

NLB

Network Load Balancing

NLBS

Network Load Balancing Service

NLPID

Network Layer Protocol Identifier

NLRI

Network Layer Reachability Information

NM

Network Management

NMFAS

Non-Multiframe FAS

NMS

Network Management System

NMS

Network Management Server

NMS

Network Management Station

NNI

Network-to-Network Interface

NO-PAT

Not Port Address Translation

NPDU

Network Protocol Data Unit

NPE

Network Provider Edge

NPV

N_Port Virtualization

NQA

Network Quality Analyzer

NR

No Request

nrt-VBR

non-real-time Variable Bit Rate

NS

Neighbor Solicitation

NSAP

Network Service Access Point

NSC

NetStream Collector

NSF

Non-Standard Facilities

NSR

Nonstop Routing

NSS

Number of Spatial Streams

NTDP

Neighbor Topology Discover Protocol

NTE

Named Telephone Event

NTP

Network Time Protocol

NTT

Nippon Telegraph and Telephone Corpration

NVC

Network Virtualization Controller

NVE

Network Virtualization Edge

NVGRE

Network Virtualization using Generic Routing Encapsulation

O

Return

O Flag

Other Stateful Configuration Flag

OAA

Open Application Architecture

OAMPDU

OAM Protocol Data Unit

OAP

Open Application Platform

OC

Ordinary Clock

OC

Optical Carrier

ODF

Optical Distribution Frame

OFDM

Orthogonal Frequency Division Multiplexing

OI

Organization Identifier

OID

Object Identifier

OOB

Out-of-Band

ORF

Outbound Route Filtering

OSI

Open System Interconnection

OSPF

Open Shortest Path First

OUI

Organizationally Unique Identifier

OVSDB

Open vSwitch Database

P

Return

P2MP

Point-to-MultiPoint

P2P

point-to-point

P2P

PW to PW

P2P

Point-to-Point

P2P

Peer-to-Peer

P2PTC

Peer-to-Peer Transparent Clock

PA

Provider Allocated

PADT

PPPoE Active Discovery Terminate

PAGP

Port Aggregation Protocol

PAM

Port to Application Map

PAM

Pulse Amplitude Modulation

PAP

Password Authentication Protocol

PAT

Port Address Translation

PBAR

Port Based Application Recognition

PBB

Provider Backbone Bridge

PBBN

Provider Backbone Bridge Network

PBN

Provider Bridge Network

PBR

Policy-based Routing

PBX

Private Branch Exchange

PCB

Protocol Control Block

PCC

Path Computation Client

PCE

Path Computation Element

PCEP

Path Computation Element Communication Protocol

PCM

Pulse Code Modulation

PCR

Peak Cell Rate

PD

Prefix Delegation

PD

Powered Device

PDH

Plesiochronous Digital Hierarchy

PDP

Policy Decision Point

PDU

Protocol Data Unit

PE

Provider Edge

PE-agg

PE Aggregation

PEAP

Protected Extensible Authentication Protocol

PEAP-GTC

Protected Extensible Authentication Protocol-Microsoft Generic Token Card

PEAP-MSCHAPv2

Protected Extensible Authentication Protocol-Microsoft Challenge Handshake Authentication Protocol v2

PEM

Privacy Enhanced Mail

PEM

Power Entry Module

PEP

Policy Enforcement Point

PFC

Priority-based Flow Control

PFC

Protocol-Field-Compression

PFS

Perfect Forward Secrecy

PHB

Per-hop Behavior

PHP

Penultimate Hop Popping

PI

Power Interface

PI

Progress Indicator

PI

Provider Independent

PIC

Prefix Independent Convergence

PIM

Protocol Independent Multicast

PIM Snooping

Protocol Independent Multicast Snooping

PIM-DM

Protocol Independent Multicast-Dense Mode

PIM-SM

Protocol Independent Multicast-Sparse Mode

PIM-SSM

Protocol Independent Multicast Source-Specific Multicast

PIN

Personal Identification Number

PIR

Peak Information Rate

PKCS

Public Key Cryptography Standards

PKI

Public Key Infrastructure

PLCP

Physical Layer Convergence Procedure

PLMN

Public Land Mobile Network

PLR

Point of Local Repair

PMK

Pairwise Master Key

PMTU

Path MTU

PoE

Power over Ethernet

POH

Path Overhead

POP3

Post Office Protocol - Version 3

POS

Point of Sale

PPP

Point-to-Point Protocol

PPPoA

PPP over ATM

PPPoE

Point-to-Point Protocol over Ethernet

PPPoEoA

PPPoE over ATM

PPTP

Point-to-Point Tunneling Protocol

PQ

Priority Queuing

PRBS

Pseudo Random Bit Sequence

PRC

Primary Reference Clock

PRI

Primary Rate Interface

PRL

Preferred Roaming List

PS

Protection Switching

PSB

Path State Block

PSC

Protection State Coordination

PSE

Power Sourcing Equipment

PSK

Pre-Shared Key

PSN

Packet Switched Network

PSNP

Partial Sequence Number PDU

PSST

Principal Switch Selection Timer

PSTN

Public Switched Telephone Network

PTK

Pairwise Transient Key

PTP

Precision Time Protocol

PTY

Pseudo-Terminals

PUK

PIN Unlocking Key

PVC

Permanent Virtual Circuit

PVC PQ

PVC Priority Queuing

PVID

Port VLAN ID

PVP

Permanent Virtual Path

PVST

Per-VLAN Spanning Tree

PW

Pseudowire

PW-ACH

PW Associated Channel Header

PWE3

Pseudo Wire Emulation Edge-to-Edge

PXE

Preboot eXecution Environment

Q

Return

QCN

Quantized Congestion Notification

QL

Quality Level

QoS

Quality of Service

QPPB

QoS Policy Propagation Through the Border Gateway Protocol

R

Return

RA

Registration Authority

RA

Router Alert

RA

Router Advertisement

RADIUS

Remote Authentication Dial-In User Service

RAI

Remote Alarm Indication

RALM

RADIUS Authenticated Login Using MAC-address

R-APS

Ring Automatic Protection Switching

RAS

Registration, Admission, and Status

RB

Routing Bridge

RBAC

Role Based Access Control

RCA

Release Change Authorization

RCF

Reconfigure Fabric

RCPI

Received Channel Power Indicator

RD

Route Distinguisher

RD

Routing Domain

RDI

Remote Defect Indication

RDM

Russian Dolls Model

RED

Random Early Detection

REG

Registration Center

RFID

Radio Frequency Identification

RIB

Routing Information Base

RIP

Routing Information Protocol

RIP-2

Routing Information Protocol version 2

RIPng

RIP next generation

RLOC

Routing Locator

RLSN

Remote Link Status Notification

RMON

Remote Network Monitoring

ROA

Recognized operating Agency

RP

Reflective Relay

RP

Rendezvous Point

RPA

Rendezvous Point Address

RPC

Remote Procedure Call

RPF

Reverse Path Forwarding

RPI

Receive Power Indication

RPL

Rendezvous Point Link

RPL

Ring Protection Link

RPR

Resilient Packet Ring

RPS

Redundant Power System

RP-Set

Rendezvous Point Set

RPT

Rendezvous Point Tree

RR

Route Reflector

RR

Reflective Relay

RR

Router Renumber

RRI

Reverse Route Injection

RRM

Radio Resource Management

RRPP

Rapid Ring Protection Protocol

RS

Router Solicitation

RSB

Reservation State Block

RSCN

Registered State Change Notification

RS-DCC

Resource-Shared DCC

RSH

Remote Shell

RSN

Robust Security Network

RSNA

Robust Security Network Association

RSNI

Received Signal to Noise Indicator

RSOH

Regenerator Section Overhead

RSSI

Received Signal Strength Indication

RSSI

Received Signal Strength Indicator

RSTP

Rapid Spanning Tree Protocol

RSVP

Resource Reservation Protocol

RT

Route Target

RTC

Remote Terminal Connection

RTCP

Real-Time Transport Control Protocol

RTM

Real-Time Event Manager

RTP

Real-Time Transport Protocol

RTPQ

Real-Time Transport Protocol Priority Queuing

RTS

Request to Send

RTSP

Real Time Streaming Protocol

RTT

Round-trip Time

rt-VBR

Real-time Variable Bit Rate

RU

Rack Unit

S

Return

S/MIME

Secure/Multipurpose Internet Mail Extensions

SA

Source Active

SA

Security Association

SA Query

Security Association Query

SABM

Set Asynchronous Balanced Mode

SACK

Selective Acknowledgment

SAE

Simultaneous authentication of equals

SAFI

Subsequent Address Family Identifier

SAII

Source Attachment Individual Identifier

SAN

Storage Area Networks

SAP

Service Advertising Protocol

SAToP

Structure-Agnostic TDM over Packet

SAVI

Source Address Validation

SB

Service Bridge

SBM

Subnetwork Bandwidth Management

SCCP

Skinny Client Control Protocol

SCEP

Simple Certificate Enrollment Protocol

SCFF

Single Choke Fairness Frame

SCR

State Change Registration

SCR

Sustainable Cell Rate

SD

Signal Degrade

SDH

Synchronous Digital Hierarchy

SDLC

Synchronous Data Link Control

SDN

Software Defined Network

SDP

Session Description Protocol

SDSL

Symmetric Digital Subscriber Line

SDU

Service Data Unit

SE

Shared-Explicit

SEC

SDH Equipment Clock

SF

Signal Failed

SF

Signal Fail

SF

Super Frame

SFC

Stage Fabric Configuration Update

sFlow

Sampled Flow

SFM

Source-Filtered Multicast

SFP

Small Form-factor Pluggable

SFTP

Secure FTP

Short GI

Short Guard Interval

SIP

Session Initiation Protocol

SIPS

SIP Secure

SLA

Service Level Agreement

SLAAC

Stateless Address Autoconfiguration

SLC

Service Logic Control

SLIP

Serial Line Internet Protocol

SMA

State Machine based Anti-spoofing

SMTP

Simple Mail Transfer Protocol

SN

Serial Number

SNA

System Network Architecture

SNAP

Subnet Access Protocol

SNAT

Source Network Address Translation

SNMP

Simple Network Management Protocol

SNP

Sequence Number PDU

SNPA

Subnetwork Point of Attachment

SNR

Signal-to-Noise Ratio

SNTP

Simple NTP

SOAP

Simple Object Access Protocol

SOH

Section Overhead

SONET

Synchronous Optical Network

SoO

Site of Origin

SP

Strict Priority

SP

Service Provider

SP

Scheduler Policy

SPB

Shortest Path Bridging

SPBM

Shortest Path Bridging MAC Mode

SPBN

Shortest Path Bridging Network

SPCS

Stored Program Control Switching System

SPE

Superstratum PE or Service Provider-end PE

SPF

Shortest Path First

SPI

Security Parameter Index

SPID

Service Profile Identification

SPSource ID

Shortest Path Source Identifier

SPT

Shortest Path Tree

SQL

Structured Query Language

Srefresh

Summary Refresh

SRST

Survivable Remote Site Telephony

sr-TCM

single rate TCM

SRTP

Secure Real-Time Transport Protocol

SSA

SIP Stack Adapt

SSH

Secure Shell

SSID

Service Set Identifier

SSL

Secure Sockets Layer

SSM

Source-Specific Multicast

SSM

Synchronization Status Message

SSP

Switch-to-Switch Protocol

SSU-A

primary level SSU

SSU-B

second level SSU

ST

Shared Tree

STBC

Space-Time Block Coding

STP

Spanning Tree Protocol

STR

Switch Trace Route

SVC

Switched Virtual Circuit

SVC

Static Virtual Circuit

SVP

SpectraLink Voice Priority

T

Return

TA

Terminal Adapter

TACACS

Terminal Access Controller Access Control System

TACL

Temporary Access Control List

TAI

International Atomic Time

TAII

Target Attachment Individual Identifier

TC

Topology Checksum

TC

Topology Change

TC

Traffic Class

TC

Transparent Clock

TCA

Topology Change Acknowledge

TCAM

Ternary Content Addressable Memory

TCI

Tag Control Information

Tcl

Tool Command Language

TCN BPDU

Topology Change Notification BPDU

TCP

Transmission Control Protocol

TDM

Time Division Multiplexing

TE

Traffic Engineering

TEDB

TE DataBase

TEI

Terminal Endpoint Identifier

TEK

tranfic encrytion key

TFO

Transport Flow Optimization

TFTP

Trivial File Transfer Protocol

TIM

Traffic Indication Map

TK

Temporal Key

TKIP

Temporal Key Integrity Protocol

TLS

Transparent LAN Service

TLS

Transport Layer Security

TLV

Type/Length/Value

ToS

Type of Service

TP

Traffic Policing

TP

Topology Protection

TPC

Transmit Power Control

TPDU

Transport Protocol Data Unit

TPID

Tag Protocol Identifier

TPMR

Two-Port MAC Relay

TRILL

TRansparent Interconnection of Lots of Links

TRIP

Triggered RIP

tr-TCM

two-rate TCM

TS

Traffic Shaping

TSA

Tunnel Switching Aggregator

TST

Test

TTL

Time to Live

TTLS

Tunneled Transport Layer Security

TTLS-GTC

Tunneled Transport Layer Security-Microsoft Generic Token Card

TTLS-MSCHAPv2

Tunneled Transport Layer Security-Microsoft Challenge Handshake Authentication Protocol v2

TTY

True Type Terminal

TU

Tributary Unit

TUG

Tributary Unit Group

TXOP Limit

Transmission Opportunity Limit

U

Return

UA

Unnumbered Acknowledge

UA

User Agent

UAC

User Agent Client

U-APSD

Unscheduled Automatic Power-save Delivery

U-APSD

Unscheduled Automatic Power-Save Delivery

UAS

User Agent Server

UBR

Unspecified Bit Rate

UDLD

Uni-directional Link Direction

UDP

User Data Protocol

UFC

Update Fabric Configuration

UIM

User Identity Module

UNI

User-to-Network Interface

UNI

User Network Interface

UPE

Underlayer PE or User-end PE

UPE

User facing-Provider Edge

URI

Uniform Resource Identifier

URL

Uniform Resource Locator

uRPF

unicast Reverse Path Forwarding

uRPF

Unicast Reverse Path Forwarding

USK

Unicast Session Key

USM

User-Based Security Model

UTC

Coordinated Universal Time

UTM

Unified Threat Management

V

Return

VA

Virtual Access

VACM

View-based Access Control Model

VAD

Voice Activity Detection

VAM

VPN Address Management

VBR-NRT

Variable Bit Rate-Non Real Time

VBR-RT

Variable Bit Rate-Real Time

VC

Virtual Container

VC

Virtual Circuit

VCC

Virtual Circuit Connection

VCCV

Virtual Circuit Connectivity Verification

VCF

Vertical Converged Framework

VCI

Virtual Channel Identifier

VCN

Virtual Circuit Number

VCPM

Voice Co-processing Module

VD

Virtual Device

VDP

VSI Discovery and Configuration Protocol

VDSL

Very high-speed Digital Subscriber Line

VE

Virtual Ethernet

VE-Bridge

Virtual Ethernet Bridge

VF Owner

Virtual Forwarder Owner

VFW

Virtual Firewall

VLAN

Virtual Local Area Network

VM

Virtual Machine

VMM

Virtual Machine Management

VN

Version Number

VNC

Virtual Network Computing

VNI

VXLAN Network Identifier

VoD

Video on Demand

VoIP

Voice over IP

VP

Virtual Path

VPC

Virtual Path Connection

VPDN

Virtual Private Dial-up Network

VPI

Virtual Path Identifier

VPLS

Virtual Private LAN Service

VPM

Voice Processing Module

VPN

Virtual Private Network

VR

Virtual Router

VRF

Virtual Routing and Forwarding

VRRP

Virtual Router Redundancy Protocol

VSAN

Virtual Storage Area Network

VSD

Virtual Security Domain

VSI

Virtual Switch Instance

VSI

Virtual Station Interface

VSID

Virtual Subnet Identifier

VSIP

Virtual Service IP

VSRP

Virtual Service Redundancy Protocol

vSwitch

Virtual Switch

VT