| AA |
Administrative Authority |
| AAL |
ATM adaptation layer |
| AAL1 |
connection oriented at constant
bit rate (e.g. DS1 DS3) |
| AAL1SAR |
ATM adaptation layer type 1 (AAL1) segmentation and reassembly (SAR)
|
| AAL2 |
connection oriented at variable
bit rate (e.g. some video) |
| AAL3/4 |
CO or CL at variable bit rate |
| AAL5 |
CO or CL at variable bit rate
(lean: no error recovery) |
| ABR |
Available Bit rate |
| ACF |
a DQDB header field |
| ACR |
Allowed cell rate |
| ACR |
Average cell rate |
| ACSE |
Association Control Service
Element |
| ADSL |
Asymetrical Digital Subscriber
Loop |
| ADTF |
Allowed cell rate Decrease Time
Factor |
| AESA |
ATM End Station Address |
| AFI |
Authority and Format Identifier |
| AINI |
ATM Inter-Network Interface |
| AIS |
Alarm Indication Signal |
| AMA |
Automatic message accounting |
| ANSI |
American National Standards
Institute |
| APC |
Adjacent Point Code |
| API |
application programmers'
interface |
| ARP |
address resolution protocol |
| AS |
Autonomous System |
| ASN.1 |
Abstract Syntax Notation One |
| ASP |
ATM Service Provider |
| AT |
Abatement-congestion threshold |
| ATM |
Adobe Type Manager |
| ATM |
Asynchronous Transfer mode |
| ATM |
Automatic Teller Machine |
| ATMARP |
Address registration protocol
over ATM |
| ATMF |
ATM Forum |
| AToMIS |
ATM Oriented Multimedia
Information System (NEC's product name) |
| AToMMIB |
ATM SONET MIB. (o from Sonet)
(AToM meaning small) |
| ATOMVIEW |
NEC name for NMS (both product
and prototype) |
| BAF |
Bellcore AMA format |
| BALUN |
Balanced to Unbalanced impedance
matching unit |
| BCN |
broadcast channel number |
| BER |
Bit error ratio |
| BGAK |
Begin acknowledge (PDU) |
| BGN |
Begin (PDU) |
| BHLI |
Broadband Higher Layer
Information |
| BGREJ |
Begin rejected (PDU) |
| B-ICI |
Broadband Inter(-exchange)
Carrier Interface |
| B-ISSI |
Broadband inter-switching system
interface |
| B-ISUP |
Broadband ISDN User Part |
| BIP |
Byte Interleaved Parity (BIP-8 BIP-24) |
| BISDN |
Broadband Integrated Services
Digital Network |
| BLLI |
Broadband Low Layer information |
| BMUX |
Basic rate Multiplexor |
| BNA |
Broadband network administrator |
| BOM |
Beginning of message |
| BOMS |
Beginning of message segment |
| BPN |
broadcast packet network |
| BPV |
Bipolar violations |
| BRDP |
BPN reliable datagram protocol |
| BSS |
Broadband switching system |
| BT |
Burst tolerance |
| BTC |
broadcast translation circuit |
| BTAG |
Beginning TAG |
| BVPN |
broadband virtual private network |
| CAC |
Call access control |
| CAC |
Connection admission control |
| CBO |
Continuous bit-stream-oriented |
| CBR |
Constant bit rate |
| CCITT |
International Consultative
Committee for Telephone and Telegraph |
| CDF |
Cutoff decrease factor |
| CDV |
Cell delay variation |
| CDVT |
Cell delay variation tolerance |
| CE |
Connection end-point |
| CEI |
Connection end-point identifier |
| CER |
Cell error ratio |
| CES |
Circuit emulation service |
| CFA |
carrier failure alarm |
| CgPN |
Calling party number |
| CIR |
Committed Information rate |
| CIC |
Carrier identification code |
| CIP |
Carrier identification parameter |
| CLEI |
Common language equipment
identifier |
| CLNP |
Connection-less network protocol |
| CLP |
Cell Loss Priority |
| CLR |
Cell loss ratio |
| CM |
Configuration Management |
| CMAP |
connection management access
protocol |
| CMIP |
Common Management Information
Protocol |
| CMIS |
Common Management Information
Service |
| CMISE |
Common Management Information
Service Element |
| CMMO |
connection management managed
object |
| CMNP |
connection management network
protocol |
| CMOL |
CMIP over LLC |
| CMOT |
CMIP over TCP/IP |
| CMR |
Cell mis-insertion rate |
| CN |
copy network |
| CNM |
(ATM) Customer Network Management |
| CNR |
Complex Node Representation |
| COM |
Continuation of message |
| COMS |
Continuation of message segment |
| CP |
Common Part |
| CP |
control processor |
| CPCS |
Common Part convergence sub-layer |
| CPCS-CI |
Common Part convergence
sub-layer congestion indicator |
| CPE |
Customer premises equipment |
| CPN |
Customer premises network |
| CR |
Conditional requirement |
| CRC |
cyclic redundancy check |
| CRM |
Cell rate margin |
| CRS |
Cell relay service |
| CS |
Convergence sublayer |
| CTD |
Cell transfer delay |
| DBMS |
Database management system |
| DCC |
Data Country code |
| DFI |
Domain specific part Format
Identifier |
| DPC |
Destination point code |
| DQDB |
Distributed queue dual bus |
| DS1 |
T1 interface 1.544 Mbps |
| DS3 |
(Digital Signal 3) T3 interface
44.736Mbps |
| DSP |
Domain specific part |
| DSU |
Data Service UNIT |
| DTL |
Designated transit list |
| DXI |
Data exchange interface |
| E1
E2 E3 E4 |
G703I/f E1@2.048Mbps
E2@8.448Mbps E3@34.368Mbps E4 139Mbps |
| EFD |
Event Forwarding Discriminator |
| EGP |
Exterior Gateway protocol |
| EL |
Element Layer |
| EML |
Element management layer |
| ES |
End system (e.g. a host) |
| ESI |
End System Identifier |
| ETD |
Enforcement traffic descriptor |
| ETSI |
European Telecommunications
Standards Institute |
| FAN |
fanout field |
| FDDI |
fibre distributed data interface |
| FDM |
Frequency division multiplexing |
| FEC |
forward error correction |
| FIFO |
first-in first-out |
| FM |
Fault Management |
| FR |
Frame relay |
| FRS |
Frame relay service |
| FSM |
Finite state machine |
| FTAM |
File transfer access and
management |
| GFC |
Generic flow control |
| GFR |
Guaranteed Frame Rate (ATM Forum
- UBR with minimum bandwidth guarantee) |
| GFR |
Giant F***ing Router |
| GCAC |
Generic connection admission
control |
| GCRA |
Generic cell rate algorithm |
| GUI |
Graphical User interface |
| HEC |
header error control |
| HIPPI |
High Performance Parallel
Interface |
| HPSN |
High performance scalable
networking |
| IAB |
Internet activities board |
| ICD |
International Code Designator |
| IDI |
Initial domain identifier |
| IDP |
Initial domain part |
| IDU |
Interface data unit |
| ID |
Identifier |
| IE |
Information element |
| IETF |
Internet engineering task force? |
| EFCI |
Explicit forward cingestion
indication |
| ERM |
Explicit rate marking |
| IG |
Information group |
| IGP |
Internal Gateway Protocol |
| IMS |
Interface message specification
(NEC) |
| ILMI |
Interim Local Management
Interface |
| INA |
Bellcore information network
architecture |
| INI |
Internode interface (replacement
for NNI node-node and node to network i/f) |
| IP |
Internet protocol |
| IPL |
Initial Program load |
| IS |
Intermediate system (e.g. a
router (which isn't end point of IP connection)) |
| ISDN |
Integrated Services Digital
Network |
| ISO |
International organisation for
standardisation |
| ITU |
International Telecommunications
Union |
| LAN |
Local area network |
| LATA |
Local Access and Transport Area |
| LATM |
Local ATM |
| LCD |
Loss of Cell Delineation |
| LCV |
line code violation |
| LE |
LAN Emulation |
| LEC |
LE Client |
| LEH |
LE Headrer |
| LES |
LE Server |
| LES |
Line error seconds |
| LGN |
Logical Group Node |
| LIS |
Logically independent IP subnet |
| LLC |
Logical link control |
| LM |
Layer management |
| LOF
|
Loss of Frame |
| LOP |
Loss Of Pointer |
| LOS |
Loss of Signal |
| LUNI |
LAN Emulation user to network
interface |
| M1 |
ATM Forum managment I/Fs User -
Public |
| M2 |
ATM Forum managment I/Fs Private
ATM network mgmt |
| M3 |
ATM Forum managment I/Fs
Customer network management of Public ATM svc |
| M4 |
ATM Forum managment I/Fs Public
ATM network mgmt |
| M5 |
ATM Forum managment I/Fs Public-Public network mgmt |
| MAC |
Media access control |
| MARS |
Multicast address resolution
server |
| MC |
machine congestion (level) |
| MaxCR |
Maximum Cell Rate |
| MCLR |
Maximum cell loss ration |
| MCR |
Minumum cell rate |
| MCTD |
Mean cell transfer delay |
| MCDV |
Mean cell delay variation |
| MIB |
Management information base |
| MIOX25 |
Multiprotocol Interconnect over
X.25 and ISDN (RFC1356) |
| MLA |
Multi-letter acronym |
| MOSPF |
Multicast open shortest path
first |
| MPOA |
ATM Forum Multiprotocol over ATM |
| MS |
Manhattan Street |
| MTBF |
Mean time between failure |
| MTTR |
Mean time to repair |
| MTP3 |
Message Transfer Part level 3 |
| NARP |
NBMA Address registration
protocol |
| NAS |
NBMA ARP Server |
| NBMA |
Non-Broadcast Multi-Access link
layer |
| NCCI |
Network call correlation
identifier |
| NCL |
Network communication link |
| NE |
Network Element |
| NEL |
Network Element Layer |
| NEML |
Network Element Management Layer |
| NHRP |
NBMA Next Hop Resolution Protocol |
| NHS |
Next Hop Server |
| NLPID |
Network Layer Protocol ID |
| NM |
(ATM) Network management |
| NM |
Node management |
| NML |
Network Management Layer |
| NMS |
Network management system |
| NNI |
network-network interface |
| NPC |
Network Parameter Control |
| NSAP |
Network (Layer) Service Access
Point |
| OAM |
Operation and Maintenance cell |
| OC |
Optical Carrier |
| OC3
OC12 OC48 |
Sonet Optical signal at
different speeds (OC3=155.52 OC12=622Mb/s) OCnn nn/19.29=>GBPS (OC-1
3 9 12 18 24 36 48) |
| OCD |
Out of Cell Delineation |
| OLIP |
Originating line information
parameter |
| OPC |
Originating point code |
| OSI |
Open systems interconnect |
| OSPF |
Open Shortest Path
First(RFC1131.ps) |
| PCM |
Pulse code modulation |
| PCR |
Peak Cell Rate |
| PDH |
Plesiochronous? Digital Hierarchy |
| PDU |
Protocol data unit |
| PG |
Peer group |
| PGL |
Peer group leader |
| PHY |
Physical layer |
| PLCP |
Physical Layer Convergence
Procedure |
| PM |
Performance Management |
| PMD |
physical medium dependent |
| PNNI |
Private network-network interface |
| PNNI |
Public NNI (not relevant to us) |
| PP |
packet processor protocol |
| PP |
port processor |
| PRM |
Protocol Reference model |
| PSE |
packet switch element |
| PSTN |
public switched telephone
network? |
| PT |
payload type |
| PTI |
Payload type identifier |
| PTSE |
PNNI Topology State element |
| PTSP |
PNNI Topology State packet |
| PVC |
Permanent virtual circuit |
| PVCC |
Permanent virtual channel
connectio |
| PVPC |
Permanent virtual path connection |
| QoS |
Quality of Service |
| RAIG |
Resource availability
information group |
| RCC |
Routing control channel |
| RD |
Routing Domain |
| RDI |
Remote Defect Identification |
| RMON |
Remote network monitoring |
| RN |
routing network |
| ROSE |
Remote operation service element |
| RPC |
remote procedure call |
| RSVP |
Resource ReSerVation Protocol |
| RTSE |
Reliable transfer service element |
| SAAL |
Signalling AAL |
| SAP |
Service access point |
| SAR |
segmentation and reassembly |
| SCR |
Sustainable Cell Rate |
| SDH |
Synchronous digital hierarchy |
| SDU |
Service data unit |
| SEAL |
Simple and efficient adaptation
layer |
| SFUP |
switch fabric update protocol |
| SIR |
Sustained Information rate |
| SM |
Security management |
| SM |
Session management |
| SMF |
Systems management function |
| SMFA |
Systems management functional
area |
| SMDS |
switched multi-megabit data
service |
| SMI |
Structure of Management
Information (RFC1442 also 1445 1448) |
| SMI |
switch module interface |
| SMP |
Simple management protocol
(SNMPv2?) |
| SNPA |
SubNetwork point of Attachment |
| SNAP |
SubNetwork Attachment Point(see
IEEE 802.1a) |
| SNARE |
Sub Network Address Resolution
Entity |
| SNI |
Subscriber Network Interface |
| SNMP |
Simple network management
protocol |
| SNPA |
Subnetwork Point of Attachment |
| SONET |
Synchronous optical network |
| SONETVT |
SONET Virtual Tributary |
| SPANS |
(Fore systems') simple protocol
for ATM network signalling |
| SS |
Switching system |
| SS7 |
Signalling System Number 7 |
| SSCOP |
Service Specific Connection
Oriented Protocol |
| SSCF |
Service Specific Coordination
Function |
| SSCS |
Service Specific convergence
sub-layer |
| SSMO |
switch side managed object |
| STM |
Synchronous transfer mode |
| STS-3c |
Synchronous Transport Signal 3c |
| SVC |
Switched virtual circuit |
| T3/DS-3 |
45 Mbps DS3 physical layer |
| TAXI |
Transparent Asynchronous
Transmitter/Receiver Interface (100 M bps 4B/5B) |
| TC |
Transmission convergence |
| TCP/IP |
Transmission control
protocol/Internet protocol |
| TDM |
Time division multiplexing |
| TLA |
Three letter acronym |
| TLV |
Type length value |
| TMN |
Telecommunications Management
Network |
| TP |
Termination Point |
| UBR |
Unspecified Bit Rate |
| UDP |
User datagram protocol |
| ULIA |
Uplink information attribute |
| UME |
UNI Management entity |
| UNI |
User network interface |
| UPC |
Usage parameter control |
| UTP |
Unshielded Twisted Pair |
| VBR |
Variable Bit Rate |
| VC |
Virtual channel (NOT circuit) |
| VCC |
virtual channel connection |
| VCI |
(LATM MIB) Virtual circuit ID |
| VCI |
virtual channel identifier |
| VCL |
Virtual channel link |
| VCS |
Virtual channel switch |
| VF |
Variance factor |
| VLAN |
Virtual LANs (appear same on MAC
layer segment?) |
| VP |
Virtual path (unidirectional
logical association or bundle of VCs) |
| VPC |
Virtual path connection |
| VPI |
VP identifier |
| VPCI |
Virtual path connection
identifier |
| VPL |
Virtual path link |
| VPN |
virtual private network |
| VPT |
Virtual path terminator |
| VS/VD |
Virtual source/virtual
destination (as in segmented VS/VD & hop-by-hop VS/VD) |
| WATM |
Wide area ATM (subnet model) |
| WDM |
Wave Division Multiplexing
|
| XDR |
external data representation |
| XNS |
Xerox Network Systems
|
|
|
|
|
|
|
|
|
|