ABR
|
available bit rate
|
ANSI
|
American National Standards Institute
|
API
|
Application programming interface
|
APPN
|
Advanced Peer-to-Peer Networking
|
ARM
|
alarm relay module
|
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
|
IEC
|
International Electrotechnical Commission
|
IETF
|
Internet Engineering Task Force
|
ILMI
|
Integrated Local Management Interface
|
IMA
|
inverse multiplexing over ATM
|
IP
|
Internet Protocol
|
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
|
P-NNI
|
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
|
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
|
ZCS
|
zero code suppression
|