ABR
|
Available bit rate
|
ANSI
|
American National Standards Institute
|
API
|
Application programming interface
|
APPN
|
Advanced Peer-to-Peer Networking
|
ARM
|
Alarm relay module
|
APS
|
Automatic Protection Switching
|
ASIC
|
Application-specific integrated circuit
|
ATM
|
Asynchronous Transfer Mode
|
BT
|
Burst tolerance
|
BTM
|
Broadband trunk module
|
CAC
|
Connection admission control
|
CAS
|
Channel-associated signaling
|
CBR
|
Constant bit rate
|
CCITT
|
Consultative Committee for International Telegraph and Telephone
|
CCS
|
Common channel signaling
|
CDVT
|
Cell delay variation tolerance
|
CIR
|
Committed information rate
|
Cisco IOS
|
Cisco Internetwork Operating System
|
CLLM
|
Consolidated link-layer messages
|
CLP
|
Cell loss priority
|
CODEC
|
Coder-Decoder
|
CoS
|
Class of service
|
CPE
|
Customer premises equipment
|
CRC
|
Cyclic redundancy check
|
CVM
|
Channelized voice module
|
dB
|
Decibels
|
DDS
|
Digital data service
|
DLCI
|
Data-link connection identifier
|
DS1
|
Digital signal level 1
|
DS0
|
Digital signal level 0 (24 DS0s in a DS1)
|
DS0A
|
Mechanism to carry a subrate DDS channel in a DS0
|
DSU
|
Data service unit
|
EEPROM
|
Electrically erasable programmable read-only memory
|
EFCI
|
Explicit Forward Congestion Indication
|
EIA
|
Electronic Industries Association
|
ELMI
|
Enhanced local management interface
|
EMI
|
Electromagnetic interference
|
ER
|
Explicit rate
|
ETSI
|
European Telecommunications Standards Institute
|
FCI
|
Forward congestion indicator
|
FRAD
|
Frame Relay access device
|
FRM
|
Frame Relay module
|
GBps
|
Gigabits per second
|
HDB3
|
Line code type used on E3 circuits
|
HDLC
|
High-Level Data-Link Control
|
HDM
|
High-speed data module
|
HEC
|
Header error control
|
IBS
|
Initial burst size
|
IEC
|
International Electrotechnical Commission
|
IETF
|
Internet Engineering Task Force
|
ILMI
|
Integrated Local Management Interface
|
IMA
|
Inverse multiplexing over ATM
|
IP
|
Internet Protocol
|
IR
|
Instantaneous Rate
|
ISDN
|
Integrated Service Digital Network
|
KBps
|
Kilobits per second
|
LAN
|
Local-area network
|
LDI
|
Low-speed data interface
|
LDM
|
Low-speed data module
|
LED
|
Light emitting diode
|
LMI
|
Local management interface
|
LOS
|
Loss of signal
|
LSB
|
Least significant bit
|
Mbps
|
Megabits per second
|
MCR
|
Minimum cell rate
|
MIB
|
Management information base
|
MIPS
|
Millions of instructions per second
|
MMF
|
Multimode fiber
|
MPLS
|
Multiprotocol Level Switching
|
MSB
|
Most significant bit
|
NNI
|
Network-to-Network Interface
|
NPM
|
Network processor module
|
NTM
|
Network trunk module
|
OAM
|
Operation, Administration, and Maintenance
|
OC
|
Optical carrier
|
OSPF
|
Open shortest path first
|
PBX
|
Private branch exchange
|
PCM
|
Pulse code modulation
|
PCR
|
Peak cell rate
|
PCS
|
Port Concentrator Shelf
|
PEM
|
Power Entry Module
|
PLCP
|
Physical layer convergence procedure
|
PNNI
|
Private Network-to-Network Interface
|
PoP
|
point-of-presence
|
PPP
|
Point-to-Point Protocol
|
PVC
|
Permanent virtual circuit
|
QoS
|
Quality of Service
|
RFI
|
Radio frequency interference
|
RPS
|
Repetitive pattern suppression
|
SAC
|
Service activation center
|
SCM
|
System clock module
|
SCR
|
Sustainable cell rate
|
SDH
|
Synchronous Digital Hierarchy
|
SDLC
|
Synchronous Data-Link Control
|
SLA
|
Service Level Agreement
|
SMDS
|
Switched Multimegabit Data Service
|
SMF
|
Single-mode fiber
|
SNA
|
Systems Network Architecture
|
SNMP
|
Simple Network Management Protocol
|
SONET
|
Synchronous Optical Network
|
SPX
|
Sequenced Packet Exchange
|
SRM
|
Service Resource Module
|
STM
|
Synchronous Transport Module
|
SVC
|
Switched virtual circuit
|
TCP
|
Transmission Control Protocol
|
TDM
|
Time-division multiplexing
|
TDP
|
Tag distribution protocol
|
TM
|
Traffic management
|
TR
|
Technical reference
|
UBR
|
Unspecified bit rate
|
UFM
|
Universal Frame Relay module
|
UNI
|
User-Network Interface
|
UVM
|
Universal voice module
|
VAD
|
Voice activity detection
|
VBC
|
Variable bit rate
|
VC
|
Virtual circuit
|
VCI
|
Virtual channel identifier
|
VD
|
Virtual destination
|
VF
|
Voice frequency
|
VNS
|
Voice network switching
|
VoFR
|
Voice over Frame Relay
|
VoIP
|
Voice over IP
|
VP
|
Virtual path
|
VPI
|
Virtual path identifier
|
VPN
|
Virtual private network
|
VS
|
Virtual source
|
VSI
|
Virtual Switch Interface
|
VToA
|
Voice transport over ATM
|
WAN
|
Wide-area network
|
WFQ
|
weighted Fair Queue
|
ZCS
|
Zero code suppression
|
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