Chapter . Acronyms

2.5G

next-generation

3G

third-generation

ABR

area border router

ACL

access control list

ADM

add-drop multiplexer

AN

acknowledgment number

API

application programming interface

APS

automatic protection switching

ARP

Address Resolution Protocol

AS

autonomous system

ASBR

autonomous system border router

ASIC

application-specific integrated circuit

ASN

abstract syntax notation

AT

address table

ATM

Asynchronous Transfer Mode

BDR

backup Designated Router

BERT

bit error rate test

BGP

Border Gateway Protocol

BGP4

Border Gateway Protocol version 4

BSR

Bootstrap router

CBGP

confederation BGP

CBR

constant bit rate

CBT

core-based tree

CCC

circuit cross connect

CCSI

Cisco Certified System Instructor

CE

customer edge

Chk

checksum

CIDR

classless interdomain routing

CIP

connector interface panel

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