Cisco IOS System Error Messages, Volume 2 of 2
Glossary of Acronyms

Table Of Contents


Glossary

The following glossary of acronyms expands acronyms and initialiasms that are used in Cisco IOS System Error Messages, Release 12.2.


A
 
AAA
authentication, authorization, and accounting
AAL5
ATM adaptation layer 5
ABM
asynchronous balanced mode
ABR
Area Border Router
AC
alternating current
ACIP
ATM Cable Interface Processor
ACL
Access Control List
ACO
alarm cutoff
ACTLU
activate logical unit
ACTPU
activate physical unit
ADSL
asymmetric digital subscriber line
AH
Authentication Header
AIP
ATM Interface Processor
ALC
ATM Line Card
ALPS
Airline Product Set
AMD
Advanced Micro Devices
ANR
Automatic Network Routing
ANS1
Undefined
AP
authentication proxy
API
application programming interface
APING
Undefined
APN
access point name
APPC
Advanced Program-to-Program Communications
APPN
Advanced Peer-to-Peer Networking
APS
automatic protection switching
ARAP
AppleTalk Remote Access Protocol
ARB
Adaptive Rate-Based
ARP
Address Resolution Protocol
ARQ
automatic repeat request
AS
autonomous system
ASCU
agent-set control unit
ASIC
application-specific integrated circuit
ASP
ATM switch processor
ATF
area to free
ATM
Asynchronous Transfer Mode
AURP
AppleTalk Update-Based Routing Protocol
AutoRP
Auto-Rendezvous Point
AVL
approved vendor list


B
 
BAP
Bandwidth Allocation Protocol
BB
Undefined
BBI
Undefined
BERT
bit error rate tester
BGP
Border Gateway Protocol
BIC
backplane interface card
BIDI
bidirectional bus
BIND
Berkeley Internet Name Domain
BIS
Undefined
BLLI
Broadband Low Layer Information
BMA
Buffer Management ASIC
BOOTP
Bootstrap Protocol
BPDU
bridge protocol data unit
BPI
baseline privacy interface
BRI
Basic Rate Interface
BRF
Bridge Relay Function
BSC
Binary Synchronous Communications
BSS
Business Support System
BSTUN
Block Serial Tunnel
BTU
Undefined
BUS
broadcast-and-unknown server


C
 
CA
certification authority
CAIM
Compression Advanced Interface Module
CAM
content-addressable memory
CAS
channel-associated signaling
CASA
Cisco Appliance and Services Architecture
CBAC
Context-Based Access Control
CBI
Undefined
CBUS
ciscoBus
CCAPI
call control API
CCB
call control block
CCO
Cisco Connection Online (obsolete term, replaced by Cisco.com)
CCW
channel command word
CDI
Undefined
CDM
cable data modem
CDP
Cisco Discovery Protocol
CE
certificate enrollment
CEB
Undefined
CEBI
Undefined
CEF
Cisco Express Forwarding
CES
circuit emulation service
CET
Cisco Encryption Technology
CGMP
Cisco Group Management Protocol
CGX
CryptoGraphics eXtensions
CHAP
Challenge Handshake Authentication Protocol
CI
chassis interface
CICS
Customer Information Control System
CIP
Channel Interface Processor
CIP2
enhanced Channel Interface Processor
CIR
committed information rate
CLAW
Common Link Access for Workstations
CLI
command-line interface
CLNS
Connectionless Network Service
CLS
Cisco link services
CLSI
Cisco link services interface
CMCC
Cisco Mainframe Channel Connection
CMNS
Connection Mode Network Service
CMPC
Cisco Multipath Channel
CMTS
cable modem termination system
CNR
Cisco Network Registrar
CNOS
change number of sessions
CNS
Cisco Networking Services
codec
coder-decoder
CoS
class of service
COT
continuity testing
CP
control point
CPA
Channel Port Adapter
CPI
common part indicator
CPI-C
common programming interface for communications
CRC
cyclic redundancy check
CRF
Concentrator Relay Function
CRL
certificate revocation list
CRV
call reference value
CSA
compression service adapter
CSAR
Cisco Cell Segmentation and Reassembly
CSC
clock switch card
CSI
called subscriber identification
CSM
call switching mode
CSM
call switching module
CSNA
Cisco SNA
CSU
channel service unit
CTRC
Cisco Transaction Connection
CTS
Clear To Send
CV
Undefined
CWAN
Constellation WAN


D
 
DC
direct-connect
DC
direct current
DCD
data carrier detect
DCE
data communications equipment
DDR
dial-on-demand routing
DDSM
Digital Data Services Manager
DFC
dial feature card
DFP
Dynamic Feedback Protocol
DHCP
Dynamic Host Configuration Protocol
DLC
data-link connection
DLC
data-link control
DLCI
data-link connection identifier
DLR
designated local retransmitter
DLSw
data-link switching
DLU
dependent logical unit
DLU
destination logical unit
DLU
dynamic logical unit
DLUR
dependent logical unit requester
DLUS
dependent logical unit server
DM
disconnect mode
DMA
direct memory access
DMAC
destination MAC
DMLP
Distributed Multilink Point-to-Point Protocol
DNIS
dialed number identification service
DNS
Domain Name Server
DNS
Domain Name Service
DNS
Domain Name System
DOCSIS
Data-over-Cable Service Interface Specifications
DOI
domain of interpretation
DPRAM
dual-port RAM
DR
dynamic replenishment
DRAM
dynamic RAM
DRDA
Distributed Relational Database Architecture
DRiP
Duplicate Ring Protocol
DRP
Director Response Protocol
DSC
dial shelf control
DSC
dial shelf controller
DSI
dial shelf interconnect
DSI
dial shelf interface
DSIP
Dial Shelf Interconnect Protocol
DSL
digital subscriber line
DSP
digital signal processor
DSP
Domain Specific Part
DSPM
digital signal processor module
DSPRM
Digital Signal Processor Resource Manager
DSPU
downstream physical unit
DSR
data set ready
DSU
data service unit
DSU
digital service unit
DTE
data terminal equipment
DTP
Dynamic Trunking Protocol
DTR
data terminal ready
DVMRP
Distance Vector Multicast Routing Protocol


E
 
EC
EtherChannel
ECA
ESCON Channel Adapter
ECC
error-correcting code
ECC
Error-Check Code
ECC
error checking and correction
ECPA
Escon Channel Port Adapter
ECPA4
Enhanced Escon Channel Port Adapter
EEPROM
erasable programmable read-only memory
EGP
exterior gateway protocol
EHSA
enhanced high system availability
EID
endpoint identifier
EIGRP
Enhanced Interior Gateway Routing Protocol
ELAN
emulated LAN
ENVM
Constellation WAN Environmental Monitor
EOF
end of frame
EOIR
enhanced online insertion and removal
ESCON
Enterprise System Connection
ESP
Extended Services Processor


F
 
FAQ
frequently asked questions
FB
feature board
FCIT
Undefined
FC-PFQ
feature card per-flow queueing
FDDI
Fiber Distributed Data Interface
FDL
Facility Data Link
FDM
frequency-division multiplexing
FE
Fast Ethernet
FEC
Fast EtherChannel
FI
format indicator
FIA
Fabric Interface ASIC
FIB
forwarding information base
FIFO
first-in, first-out
FIR
Finite Impulse Response
FM
Undefined
FMSP
Fax MSP
FPGA
field-programmable gate array
FQDN
fully qualified domain name
FQPCID
fully qualified procedure correlation identifier
FRMR
Frame Reject
FRU
field-replaceable unit
FSIP
Fast Serial Interface Processor
FSM
finite state machine
FTP
File Transfer Protocol


G
 
GBIC
Gigabit Interface Converter
GC
global configuration
GDS
general data stream
GE
Gigabit Ethernet
GEIP
Gigabit Ethernet Interface Processor
GGSN
gateway GPRS support node
GLC
Gigabit line card
GPRS
general packet radio service
GRP
gigabit route processor
GSN
GPRS support node
GSR
Internet router
GTF
Generalized Trace Facility
GTP
GPRS tunneling protocol


H
 
HDLC
High-Level Data Link Control
HDV
High Density Voice
HDX
half-duplex
HGW
home gateway
HPR
High-Performance Routing
HSA
high system availability
HSRP
Hot Standby Router Protocol
HWIDB
hardware interface descriptor block


I
 
IBGP
internal BGP
IBOC
in-band bit-oriented code
ICC
Interface Controller Card
ICMP
Internet Control Message Protocol
ICPIF
Calculated Planning Impairment Factor
ICS
Integrated Communication System
IDAP
Undefined
IDB
interface descriptor block
IDPROM
Identification PROM
IDS
Internal Data Services
IDT
Integrated Digital Terminal
IDU
indoor unit
IEEE
Institute of Electrical and Electronics Engineers
IETF
Internet Engineering Task Force
IF
intermediate frequency
IGMP
Internet Group Management Protocol
IGRP
Interior Gateway Routing Protocol
IKE
Internet Key Exchange
ILMI
Integrated Local Management Interface
IMA
inverse multiplexing over ATM
IP
Internet Protocol
IPC
interprocess communication
IPDC
Internet Protocol device control
IPDLC
IP data link connection
IPG
Inter-Packet Gap
IPM
Cisco Internetwork Performance Monitor
IPPCP
IP Payload Compression Protocol
IPSec
IP Security
IPv6
IP version 6
IPX
Internetwork Packet Exchange
ISA
Integrated Services Adapter
ISAKMP
Internet Security Association and Key Management Protocol
ISDN
Integrated Services Digital Network
IS-IS
Intermediate System-to-Intermediate System
ISL
Inter-Switch Link
ISR
intermediate session routing
IVR
interactive voice response


L
 
LAC
L2TP access concentrator
LANCE
Local Area Network Controller Ethernet
LANE
LAN Emulation
LAPB
Link Access Procedure, Balanced
LAT
local-area transport
LC
line card
LCB
Line Control Block
LCD
liquid crystal display
LCI
local channel identifier
LCN
logical channel number
LDLC
LocalDirector link control
LDN
local directory number
LDP
label distribution protocol
LEC
LANE Client
LECS
LANE Configuration Server
LEN
low-entry networking
LES
LANE Server
LFSID
local-form session identifier
LIR
link incident report
LLC
logical link control
LLC2
Logical Link Control, type 2
LMI
Local Management Interface
LNM
LAN Network Manager
LNS
L2TP network server
LPD
line printer daemon
LS
Undefined
LSA
link-state advertisement
LSIPC
LightStream interprocess communication
LSP
Label Switch Path
LSP
link-state packet
LU
logical unit
LU6.2
logical unit type 6.2


M
 
MAC
Media Access Control
MARS
Multicast Address Resolution Server
MAU
media attachment unit
MBRI
Multi-BRI
MBRI
Multiport Basic Rate Interface
MBus
maintenance bus
MCNS
Multimedia Cable Network System Partners, Ltd.
MCOM
Microcom carrier card
MD5
message digest algorithm 5
MDS
multicast distributed switching
MEMD
memory device
MGCP
Media Gateway Control Protocol
MIB
Management Information Base
MIB/SMT
Management Information Base/Station Management
MIC
media interface connector
MICA
Modem ISDN channel aggregation
MID
Multiplex ID
midb
multicast interface data block
MII
media-independent interface
MLS
multilayer switching
MLTG
multilink trunk group
MNCNS
Multimedia Cable Network System Partners, Ltd.
MNP4
Microcom Networking Protocol, level 4
MPC
MultiPath Channel
MPC
Multiprotocol-over-ATM client
MPLS
Multiprotocol Label Switching
MPOA
Multiprotocol over ATM
MPS
Multiprotocol-over-ATM server
MSDP
Multicast Source Discovery Protocol
MSFC
Multilayer Switch Feature Card
MPT
Ministry of Posts and Telecommunications
MS
Management Services
MTU
maximum transmission unit
Mx
Undefined


N
 
NAK
negative acknowledgment
NAS
network access server
NAT
Network Address Translation
NBAR
network-based application recognition
NBP
Name Binding Protocol
NCE
network connection endpoint
NCP
Network Control Program
NCP
Network Control Protocol
NHDR
Network Layer Header
NHRP
Next Hop Resolution Protocol
NHS
Next Hop Server
NIM
network interface module
NIP
Nitro Interconnect Protocol
NLP
network-layer packet
NLSP
NetWare Link Services Protocol
NM
network module
NMI
nonmaskable interrupt
NMP
Network Management Processor
NMS
network management system
NMVT
network management vector transport
NNI
Network-to-Network Interface
NNS
network node server
NPE
network processing engine
NRM
normal response mode
NRP
Network Routing Processor
NRP
node route processor
NSAP
network service access point
NSE
network services engine
NSP
Network Switch Processor
NSP
node switch processor
NVRAM
nonvolatile RAM


O
 
OAM
Operation, Administration, and Maintenance
ODU
outdoor unit
OIR
online insertion and removal
OOBP
out-of-band port
OOS
out of service
OSPF
Open Shortest Path First
OSS
Undefined


P
 
PA
port adapter
PAD
packet assembler/disassembler
PAgP
Port Aggregation Protocol
PAM
port adapter module card
PAM
pulse amplitude modulation
PAP
Password Authentication Protocol
PASCB
port adapter system control block
PBP
packet-by-packet
PC
program counter
PCA
parallel channel adapter
PCI
protocol control information
PCM
pulse code modulation
PCPA
Parallel Channel Port Adapter
PCR
peak cell rate
PDP
policy decision point
PDU
protocol data unit
PGM
Pragmatic General Multicast
PIC
Peripheral Interface Controller
PIC
point in call
PIE
protocol information element
PIF
Packet Input FIFO
PIM
Protocol Independent Multicast
PIMv2
Protocol Independent Multicast version 2
PIU
PCM Interface Unit
PKI
public key infrastructure
PLD
programmable logic device
PLU
primary logical unit
PM
Undefined, refers to SPE state machine
PNNI
Private Network-Network Interface
PoS
Packet over SONET
PoS
Packet over SONET/SDH
POST
power-on self test
POTS
plain old telephone service
PPP
Point-to-Point Protocol
PRI
Primary Rate Interface
PROM
programmable read-only memory
PU
physical unit
PU 2.0
Physical Unit 2.0
PU 2.1
Physical Unit 2.1
PVC
permanent virtual circuit
PVC
permanent virtual connection
PVID
Port VLAN ID
PVP
permanent virtual path
PXF
Parallel eXpress Forwarding
PXM
Processor Switching Module


Q
 
QA
queue and accumulator
QEM
Undefined
QLLC
Qualified Logical Link Control
QoS
quality of service


R
 
RA
registration authority
RAC
Resource Availability Confirm
RADIUS
Remote Authentication Dial-In User Service
RARP
Reverse Address Resolution Protocol
RAS
Registration, Admission, and Status
RAS
remote access server
RBS
Robbed-Bit Signaling
RCP
remote copy protocol
RDB
relational database
REXEC
remote execution
RF
radio frequency
RIP
Routing Information Protocol
RISC
reduced instruction set computer
RJE
remote job entry
RLM
Redundant Link Manager
RNR
receive not ready
ROM
read-only memory
RP
Route Processor
RPA
Resource Pool Allocation
RPC
Remote Procedure Call
RPF
Reverse Path Forwarding
RPM
Route Processor Module
RPM
Resource Pool Management
RPS
Ring Parameter Server
RR
receive ready
RS
router shelf
RS-232
EIA/TIA-232
RSA
Rivest, Shamir, and Adelman
RSC
route switch controller
RSCV
Route Selection Control Vector
rsh
remote shell
RSM
Route Switch Module
RSP
Route Switch Processor
RSRB
remote source-route bridging
RSVP
Resource Reservation Protocol
RTM
Real Time Monitor
RTP
Rapid Transport Protocol
RTP
Real-Time Transport Protocol
RTR
response time reporter
RTS
Request To Send
RTT
round-trip time
RTTMON
Round Trip Time Monitor
RU
request/response unit
Rx
Receive


S
 
SA
security association
SA
Source-Active
SADB
security association database
SAP
service access point
SAR
segmentation and reassembly
SC
Undefined
SCB
storage control blocks
SCB
system control board
SCC
Signaling Connection Control
SCCP
Signaling Connection Control Part
SCP
Service Control Point
SCP
System Control Protocol
SDLC
Synchronous Data Link Control
SDLLC
Synchronous Data Logical Link Control
SDP
Shelf Discovery Protocol
SDRAM
synchronous DRAM
SDT
Start Data Transfer
SFC
switch fabric card
SGBP
Stack Group Bidding Protocol
SGCP
Simple Gateway Control Protocol
SGSN
Serving GPRS Support Node
SID
Service ID
SIMM
single in-line memory module
SLARP
Serial Line Address Resolution Protocol
SLB
Server Load Balancing
SLC
signaling link code
SLCI
Signaling Link Code Interface
SLIP
Serial Line Internet Protocol
SLU
secondary logical unit
SM
state machine
SMDS
Switched Multimegabit Data Service
SMRP
Simple Multicast Routing Protocol
SMTP
Simple Mail Transfer Protocol
SNA
Systems Network Architecture
SNASw
SNA Switch
SNMP
Simple Network Management Protocol
SNR
signal-to-noise ratio
SNRM
Set Normal Response
SOF
start of frame
SOP
Second-Generation Packet-over-SONET
SP
Switch Processor
SPAN
Switched Port Analyzer
SPE
service processing element
SPI
security parameter index
SPID
service profile identifier
SPM
source path message
SPMM
SIMM DSP module
SRA
source routing accelerator
SRAM
Static RAM
SRCP
Simple Resource Coordination Protocol
SRDB
source route relational database
SSCOP
Service-Specific Connection-Oriented Protocol
SSCP
system services control points
SSE
silicon switching engine
SSH
Secure Shell
SSM
Source Specific Multicast
SSP
Silicon Switch Processor
SSRP
Simple Server Redundancy Protocol
SSTP