A

Return

AAL5

ATM Adaptation Layer 5

ABR

Area Border Router

AC

Access Controller

AC

Access Category

ACCM

Async-Control-Character-Map

ACFC

Address-and-Control-Field-Compression

ACFP

Application Control Forwarding Protocol

ACL

Access Control List

ACS

Auto-Configuration Server

AD

Active Directory

ADPCM

Adaptive Differential Pulse Code Modulation

ADSL

Asymmetric Digital Subscriber Line

AES

Advanced Encryption Standard

AFT

Address Family Translation

AFTR

Address Family Transition Router

AH

Authentication Header

AIFSN

Arbitration Inter Frame Spacing Number

AIS

Alarm Indication Signal

ALG

Application Level Gateway

AM

Analog Modem

AMI

Alternate Mark Inversion

ANSI

American National Standard Institute

AP

Access Point

APP

Application Protocol

APPN

Advanced Peer-to-Peer Networking

ARP

Address Resolution Protocol

AS

Autonomous System

AS

Authentication Server

ASBR

Autonomous System Boundary Router

ASM

Any-Source Multicast

ASPF

Application Specific Packet Filter

ATD

Attribute Discovery

ATM

Asynchronous Transfer Mode

AU

Administration Unit

AV

Anti-Virus

AVF

Active Virtual Forwarder

AVP

Attribute Value Pair

B

Return

B8ZS

Bipolar 8 zeros substitution

BAS

Broadband Access Server

BC

Boundary Clock

BC

Bandwidth Constraint

BCB

Backbone Core Bridge

BDI

Backward Defect Indication

BDR

Backup Designated Router

BEB

Backbone Edge Bridge

BFD

Bidirectional Forwarding Detection

BGP

Border Gateway Protocol

BIMS

Branch Intelligent Management System

B-MAC

Backbone MAC

BMC

Best Master Clock

BOOTP

Bootstrap Protocol

BPDU

Bridge Protocol Data Unit

BQ

Bandwidth Queuing

BSB

Blockade State Block

BSR

Bootstrap Router

BSS

Basic Service Set

BT

BitTorrent

B-VLAN

Backbone VLAN

C

Return

CA

Certificate Authority

CAC

Connect Admission Control

CAMS

Comprehensive Access Management Server

CAPWAP

Controlling and Provisioning of Wireless Access Point

CAR

Committed Access Rate

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

Continuity Check

CCC

Circuit Cross Connect

CCM

Continuity Check Message

CDP

Cisco Discovery Protocol

CE

Customer Edge

CEE

Converged Enhanced Ethernet

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

CIDR

Classless Inter-Domain Routing

CIR

Committed Information Rate

CIST

Common and Internal Spanning Tree

CO

Central Office

COPS

Common Open Policy Service

CPE

Customer Premises Equipment

CPS

Certification Practice Statement

CPTone

Call Progress Tone

CR

Constraint-based Routing

CRC4

Cyclic Redundancy Check 4

CRL

Certificate Revocation List

CR-LDP

Constraint-based Routed Label Distribution Protocol

CR-LSP

Constraint-based Routed Label Switched Paths

C-RP

Candidate-RP

CSNP

Complete SNP

CSPF

Constraint-based Shortest Path First

CST

Common Spanning Tree

CT

Class Type

CTR

Counter mode

CV

Connectivity Verification

CWMP

CPE WAN Management Protocol

D

Return

DAD

Duplicate Address Detection

DAR

Deeper Application Recognition

DCBX

Data Center Bridging Exchange Protocol

DCC

Dial Control Center

DCE

Date Center Ethernet

DCE

Data Circuit-terminating Equipment

DCF

Distributed Coordination Function

DD

Database Description

DDN

Digital Data Network

DDNS

Dynamic Domain Name System

DDoS

Distributed Denial of Service

DER

Distinguished Encoding Rules

DF

Designated Forwarder

DH

Diffie-Hellman

DHCP

Dynamic Host Configuration Protocol

DHCPv6

Dynamic Host Configuration Protocol for IPv6

DiffServ

Differentiated Service

DLCI

Data Link Connection Identifier

DLDP

Device Link Detection Protocol

DLSw

Data Link Switching

DM

Dense Mode

DM

Delay Measurement

DMM

Delay Measurement Message

DMR

Delay Measurement Reply

DMZ

Demilitarized Zone

DN

Distinguished Name

DNAT

Destination NAT

DNS

Domain Name System

DoD

Downstream On Demand

DoS

Denial of Service

DPD

Dead Peer Detection

DR

Designated Router

DS

Differentiated Services

DSA

Digital Signature Algorithm

DSCP

Differentiated Services Codepoint

DS-lite

Dual Stack Lite

DTE

Data Terminal Equipment

DTMF

Dual Tone Multi-Frequency

DU

Downstream Unsolicited

DUID

DHCP Unique Identifier

DUID-LL

DUID Based on Link-layer Address

DVMRP

Distance Vector Multicast Routing Protocol

DVPN

Dynamic Virtual Private Network

DWDM

Dense Wavelength Division Multiplexing

E

Return

E2ETC

End-to-End Transparent Clock

EACL

Enhanced ACL

EAD

Endpoint Admission Defense

EAIS

Ethernet Alarm Indication Signal

EAP

Extensible Authentication Protocol

EAPOL

Extensible Authentication Protocol over LAN

EBS

Excess Burst Size

ECDSA

Elliptic Curve Digital Signature Algorithm

ECM

Error Correction Mode

ECWmax

Exponent form of CWmax

ECWmin

Exponent form of CWmin

EDCA

Enhanced Distributed Channel Access

EGP

Exterior Gateway Protocol

End-Of-RIB

End of Routing-Information-Base

ENUM

Telephone Number Mapping

ERT

Export Route-target

ESF

Extended Super Frame

ESP

Encapsulating Security Payload

ESS

Extended Service Set

ETS

Enhanced Transmission Selection

ETSI

European Telecommunications Standards Institute

F

Return

FC

Fibre Channel

FCoE

Fibre Channel over Ethernet

FEC

Forwarding Equivalence Class

FFD

Fast Failure Detection

FIB

Forwarding Information Base

FIFO

First In First Out

FIP

FCoE Initialization Protocol

FQDN

Fully Qualified Domain Name

FRR

Fast Reroute

FSK

Frequency Shift Keying

FTN

FEC to NHLFE map

FTP

File Transfer Protocol

G

Return

GARP

Generic Attribute Registration Protocol

GBIC

Gigabit Interface Converter

GI

Guard Interval

GNS

Get Nearest Server

GPS

Global Positioning System

GR

Graceful Restart

GRE

Generic Routing Encapsulation

GTK

Group Temporal Key

GTP

GPRS Tunneling Protocol

GTS

Generic Traffic Shaping

GTSM

Generalized TTL Security Mechanism

GVRP

GARP VLAN Registration Protocol

H

Return

HABP

HW Bypass Protocol

HDB3

High-density Bipolar 3

HDLC

High-level Data Link Control

HGMP

HW Group Management Protocol

HGMPv2

HW Group Management Protocol version 2

HQoS

Hierarchical Quality of Service

HTTP

Hypertext Transfer Protocol

HTTPS

Hypertext Transfer Protocol Secure

H-VPLS

Hierarchy of 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

ICMP

Internet Control Message Protocol

ICMPv6

Internet Control Message Protocol for IPv6

ICPIF

Calculated Planning Impairment Factor

ID

Direct Inward Dialing

IDS

Intrusion Detection System

IE

Information 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

IKE

Internet Key Exchange

ILM

Incoming Label Map

ILS

Internet Locator Service

IM

Instant Messaging

IMA

Inverse Multiplexing for ATM

IMSI

International Mobile Subscriber Identification Number

InARP

Inverse Address Resolution Protocol

IntServ

Integrated Service

IPC

Inter-process Communication

IPHC

IP Header Compression

IPng

IP Next Generation

IPS

Intrusion Prevention System

IPsec

IP Security

IPTA

IP Terminal Access

IPv6

Internet Protocol Version 6

IPX

Internetwork Packet Exchange

IRDP

ICMP Router Discovery Protocol

IRF

Intelligent Resilient Framework

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

ISP

Internet Service Provider

ISPF

Incremental Shortest Path First

ISSU

In-Service Software Upgrade

IST

Internal Spanning Tree

ITSP

Internet Telephone Service Provider

IVR

Interactive Voice Response

L

Return

L2F

Layer 2 Forwarding

L2TP

Layer 2 Tunneling Protocol

LAC

L2TP Access Concentrator

LACP

Link Aggregation Control Protocol

LACPDU

Link Aggregation Control Protocol Data Unit

LAN

Local Area Network

LB

Load Balance

LBM

Loopback Message

LBR

Loopback Reply

LC

Logic Channel

LCI

Logic Channel Identifier

LCP

Link Control Protocol

LDAP

Lightweight Directory Access Protocol

LDP

Label Distribution Protocol

LER

Label Edge Router

LFI

Link Fragmentation and Interleaving

LFIB

Label Forwarding Information Base

LLDP

Link Layer Discovery Protocol

LLDPDU

Link Layer Discovery Protocol Data Unit

LLDP-MED

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

LOCV

Loss of Connectivity Verification defect

LR

Line Rate

LSA

Link State Advertisement

LSAck

Link State Acknowledgment

LSDB

Link State Database

LSP

Label Switched Path

LSR

Link State Request

LSR

Label Switching Router

LSU

Link State Update

LTM

Linktrace Message

LTR

Linktrace Reply

LVF

Listening Virtual Forwarder

M

Return

MA

Maintenance Association

MAC

Media Access Control

MAC

Message Authentication Code

MAD

Multi-Active Detection

MAM

Maximum Allocation Model

MAN

Metropolitan Area Network

MBGP

Multicast BGP

MCE

Multi-VPN-instance Customer Edge

MCS

Modulation and Coding Scheme

MD

Maintenance Domain

MD

Multicast Domain

MDI

Medium Dependent Interface

MEP

Maintenance association End Point

MIB

Management Information Base

MIC

Message Integrity Check

MIP

Maintenance association Intermediate Point

MLD

Multicast Listener Discovery Protocol

MLD Snooping

Multicast Listener Discovery Snooping

MLSP

Mobile Link Switch Protocol

MOS

Mean Opinion Scores

MP

Maintenance Point

MP-BGP

Multiprotocol Border Gateway Protocol

MPLS

Multiprotocol Label Switching

MPLS TE

Multiprotocol Label Switching Traffic Engineering

MPLS-TP

MPLS Transport Profile

MSDP

Multicast Source Discovery Protocol

MSTI

Multiple Spanning Tree Instance

MSTP

Multiple Spanning Tree Protocol

MTBF

Mean Time Between Failures

MTR

Multi-Topology Routing

MTTR

Mean Time to Repair

MTU

Maximum Transmission Unit

MU

Mobile Unit

N

Return

NAPT

Network Address Port Translation

NAPT-PT

Network Address Port Translation-Protocol Translation

NAS

Network Access Server

NAT

Network Address Translation

NAT-PT

Network Address Translation-Protocol Translation

NBMA

Non-Broadcast Multi-Access

NCP

Network Control Protocol

ND

Neighbor Discovery

NDA

NetStream Data Analyzer

NDE

NetStream Data Exporter

NDP

Neighbor Discover Protocol

NET

Network Entity Title

NETCONF

Network Configuration Protocol

NHLFE

Next Hop Label Forwarding Entry

NLPID

Network Layer Protocol Identifier

NLRI

Network Layer Reachability Information

NMS

Network Management System

NNI

Network-to-Network Interface

NQA

Network Quality Analyzer

nrt_VBR

Nonreal-time Variable Bit Rate

NSC

NetStream Collector

NSF

Non-Standard Facilities

NSR

Nonstop Routing

NTDP

Neighbor Topology Discover Protocol

NTP

Network Time Protocol

O

Return

OAA

Open Application Architecture

OAMPDU

OAM Protocol Data Units

OAP

Open Application Platform

OC

Optical Carrier

OC

Ordinary Clock

OID

Object Identifier

ORF

Outbound Route Filtering

OSPF

Open Shortest Path First

OUI

Organizationally Unique Identifier

P

Return

P2MP

Point-to-MultiPoint

P2P

Point-to-Point

P2P

Peer-to-Peer

P2P

PW to PW

P2P

Point to Point

P2PTC

Peer-to-Peer Transparent Clock

PAGP

Port Aggregation Protocol

PAM

Port to Application Map

PAP

Password Authentication Protocol

PAT

Port Address Translation

PBB

Provider Backbone Bridge

PBBN

Provider Backbone Bridge Network

PBN

Provider Bridge Network

PCM

Pulse Code Modulation

PCR

Peak Cell Rate

PD

Powered Device

PD

Prefix Delegation

PDH

Plesiochronous Digital Hierarchy

PDP

Policy Decision Point

PDU

Protocol Data Unit

PE

Provider Edge

PE-agg

PE Aggregation

PEAP-GTC

Protected Extensible Authentication Protocol-Microsoft Generic Token Card

PEAP-MSCHAPv2

Protected Extensible Authentication Protocol-Microsoft Challenge Handshake Authentication Protocol v2

PEP

Policy Enforcement Point

PFC

Protocol-Field-Compression

PFC

Priority-based Flow Control

PFS

Perfect Forward Secrecy

PHP

Penultimate Hop Popping

PI

Power Interface

PIM

Protocol Independent Multicast

PIM Snooping

Protocol Independent Multicast Snooping

PKCS

Public Key Cryptography Standards

PKI

Public Key Infrastructure

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

PPPoE

Point-to-Point Protocol over Ethernet

PPTP

Point-to-Point Tunneling Protocol

PRL

Preferred Roming List

PS

Protection Switching

PSB

Path State Block

PSC

Protection State Coordination

PSE

Power Sourcing Equipment

PSK

Pre-Shared Key

PSNP

Partial SNP

PSTN

Public Switched Telephone Network

PTP

Precision Time Protocol

PTY

Pseudo-Terminals

PVC

Permanent Virtual Circuit

PVST

Per VLAN Spanning Tree

PXE

Preboot eXecution Environment

Q

Return

QoS

Quality of Service

QPPB

QoS Policy Propagation Through the Border Gateway Protocol

R

Return

RA

Router Advertisement

RA

Registration Authority

RADIUS

Remote Authentication Dial-In User Service

RD

Route Distinguisher

RDI

Remote Defect Indication

RDM

Russian Dolls Model

RED

Random Early Detection

RFID

Radio Frequency Identification

RIP

Routing Information Protocol

RIP-2

Routing Information Protocol version 2

RLSN

Remote Link Status Notification

RMON

Remote Network Monitoring

RP

Rendezvous Point

RPA

Rendezvous Point Address

RPF

Reverse Path Forwarding

RPL

Rendezvous Point Link

RPR

Resilient Packet Ring

RPT

Rendezvous Point Tree

RR

Router Renumber

RRPP

Rapid Ring Protection Protocol

RS

Router Solicitation

RSA

Rivest Shamir and Adleman

RSB

Reservation State Block

RSH

Remote Shell

RSN

Robust Security Network

RSNA

Robust Security Network Association

RSTP

Rapid Spanning Tree Protocol

RSVP

Resource Reservation Protocol

rt_VBR

Real-time Variable Bit Rate

RTC

Remote Terminal Connection

RTCP

Real-Time Transport Control Protocol

RTP

Real-Time Transport Protocol

RTS

Request to Send

RTSP

Real Time Streaming Protocol

S

Return

SA

Security Association

SA

Source Active

SABM

Set Asynchronous Balanced Mode

SAN

Storage Area Networks

SAP

Service Advertising Protocol

SATOP

Structure-Agnostic TDM over Packet

SAVI

Source Address Validation

SBM

Subnetwork Bandwidth Management

SCCP

Skinny Client Control Protocol

SCEP

Simple Certificate Enrollment Protocol

SCFF

Single Choke Fairness Frame

SDH

Synchronous Digital Hierarchy

SDLC

Synchronous Data Link Control

SDP

Session Description Protocol

SDU

Service Data Unit

SF

Super Frame

sFlow

Sampled Flow

SFM

Source-Filtered Multicast

SFP

Small Form-factor Pluggable

SFTP

Secure FTP

SIP

Session Initiation Protocol

SIPS

SIP secure

SLA

Service Level Agreement

SLAAC-Only

Stateless Address Autoconfiguration

SLIP

Serial Line Internet Protocol

SM

Sparse Mode

SMTP

Simple Mail Transfer Protocol

SNA

System Network Architecture

SNAP

Subnetwork Access Protocol

SNMP

Simple Network Management Protocol

SNPA

Subnetwork Point of Attachment

SNR

Signal-to-Noise Ratio

SONET

Synchronous Optical Network

SOO

Site of Origin

SP

Service Provider

SP

Strict Priority

SPCS

Stored Program Control Switching System

SPE

Superstratum PE or Sevice Provider-end PE

SPF

Shortest Path First

SPI

Security Parameter Index

SPID

Service Profile Identification

SPT

Shortest Path Tree

SQL

Structured Query Language

SRTP

Secure Real-time Transport Protocol

SSH

Secure Shell

SSID

Service Set Identifier

SSL

Secure Sockets Layer

SSM

Source-Specific Multicast

SSM

Synchronization Status Marker

SSP

Switch-to-Switch Protocol

ST

Shared Tree

STP

Spanning Tree Protocol

SVC

Static Virtual Circuit

SVC

Switched Virtual Circuit

SVP

Spectralink Voice Priority

T

Return

TA

Terminal Adapter

TC

Topology Checksum

TC

Transparent Clock

TCI

Tag Control Information

TCN BPDU

Topology Change Notification BPDU

TDM

Time Division Multiplexing

TE

Traffic Engineering

TEDB

TE DataBase

TFTP

Trivial File Transfer Protocol

TLS

Transport Layer Security

TLS

Transparent LAN Service

ToS

Type of Service

TP

Topology Protection

TPDU

Transport Protocol Data Unit

TPID

Tag Protocol Identifier

TRIP

Triggered RIP

TS

Traffic Shaping

TST

Test

TTL

Time to Live

TTY

True Type Terminal

TU

Tributary Unit

TXOPLimit

Transmission Opportunity Limit

U

Return

UA

Unnumbered Acknowledge

U-APSD

Unscheduled automatic power-save delivery

UBR

Unspecified Bit Rate

UDLD

Uni-directional Link Direction

UNI

User Network Interface

URL

Uniform Resource Locator

URPF

Unicast Reverse Path Forwarding

USM

User-Based Security Model

UTC

Coordinated Universal Time

V

Return

VAD

Voice Activity Detection

VAM

VPN Address Management

VC

Virtual Circuit

VC

Virtual Container

VCC

Virtual Circuit Connection

VCN

Virtual Circuit Number

VE

Virtual Ethernet

VE-Bridge

Virtual Ethernet Bridge

VF Owner

Virtual Forwarder Owner

VLAN

Virtual Local Area Network

VoD

Video on Demand

VoIP

Voice over IP

VP

Virtual Path

VPC

Virtual Path Connection

VPDN

Virtual Private Dial-up Network

VPLS

Virtual Private LAN Service

VPN

Virtual Private Network

VRRP

Virtual Router Redundancy Protocol

VSAN

Virtual Storage Area Network

VSI

Virtual Switch Instance

VT

Virtual-template

VTP

VLAN Trunking Protocol

VTY

Virtual Type Terminal

W

Return

WAI

WLAN Authentication Infrastructure

WAN

Wide Area Network

WAPI

WLAN Authentication and Privacy Infrastructure

WDS

Wireless Distribution System

WEP

Wired Equivalent Privacy

WFQ

Weighted Fair Queuing

WIDS

Wireless Intrusion Detection System

WiNet

Wisdom Network

WINS

Windows Internet Naming Service

WLAN

Wireless Local Area Network

WMM

Wi-Fi Multimedia

WPA

Wi-Fi Protected Access

WPI

WLAN Privacy Infrastructure

WRED

Weighted Random Early Detection

WRR

Weighted Round Robin

WWN

World Wide Name

WWW

World Wide Web

X

Return

XENPAK

10-Gigabit Ethernet Transceiver Package

XFP

10-Gigabit small Form-factor Pluggable

XML

Extensible Markup Language

Z

Return

ZBR

Zone Border Router