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Table A-1 lists the acronyms used in this publication, along with their definitions.
| Acronym | Definition |
|---|---|
| AAA | authentication, authorization, and accounting |
| AAL | ATM adaptation layer |
| ABR | available bit rate |
| ACK | acknowledgment |
| ADM | Add Drop Multiplexer |
| AESA | ATM End System Address |
| AESO | Auxiliary Extended Security Option |
| AFI | authority and format identifier |
| AIS | alarm indication signal |
| AMI | alternate mark inversion |
| ARAP | AppleTalk Remote Access Protocol |
| ARP | Address Resolution Protocol |
| ASP | ATM switch processor |
| ATD IE | ATM Traffic Descriptor Information Element |
| ATM | Asynchronous Transfer Mode |
| BOOTP | Bootstrap Protocol |
| BSD | Berkeley Standard Distribution |
| CAC | connection admission control |
| CBR | constant bit rate |
| CD | Carrier Detect |
| CDP | Cisco Discovery Protocol |
| CDV | cell delay variation |
| CDVT | cell delay variation tolerance |
| CES | circuit emulation service |
| CES-IWF | CES interworking function |
| CHAP | Challenge Handshake Authentication Protocol |
| CLNS | Connectionless Network Service |
| CLP | cell loss priority |
| CLR | cell loss ratio |
| CPU | Central Processing Unit |
| CRC | cyclic redundancy check |
| CTD | cell transfer delay |
| CTS | Clear To Send |
| CTT | Connection Traffic Table |
| CUG | closed user group |
| DCA | Defense Communications Agency |
| DCC | Data Country Code |
| DCE | data communications equipment |
| DFI | Domain Specific Part Format Identifier |
| DNS | Domain Name System |
| DNSIX | Department of Defense Intelligence Information System Network Security for Information Exchange |
| DSPU | downstream physical unit |
| DTE | data terminal equipment |
| DTL | designated transit list |
| DTR | data terminal ready |
| EFCI | Explicit Forward Congestion Indication |
| EPD | early packet discard |
| ESI | end system identifier |
| ESO | Exteded Security Option |
| ETLK | EtherTalk |
| FC-FCQ | feature card per-connection queueing |
| FC-PFQ | feature card per-flow queueing |
| FRC | frame redundancy check |
| FTP | File Transfer Protocol |
| GCRA | generic cell rate algorithm |
| IC | interlock code |
| ICB | incoming calls barred |
| ICD | International Code Designator |
| ICMP | Internet Control Message Protocol |
| IE | information element |
| IEEE | Institute of Electrical and Electronics Engineers |
| IETF | Internet Engineering Task Force |
| IG | information group |
| IGMP | Internet Group Management Protocol |
| IGRP | Interior Gateway Routing Protocol |
| IISP | Interim-Interswitch Signalling Protocol |
| ILMI | Interim Local Management Interface (UNI 3.1) or Integrated Local Management Interface (UNI 4.0) |
| IME | interface management entity |
| IOS | Cisco Internetwork Operating System |
| IP | Internet Protocol |
| IPSO | IP Security Option |
| ITU-T | International Telecommunications Union Telecommunication Standardization Sector |
| LAN | local-area network |
| LANE | LAN emulation |
| LE ARP | LAN Emulation Address Resolution Protocol |
| LECS | LAN Emulation Configuration Server |
| LGN | logical group node |
| LLC2 | Logical Link Control, type 2 |
| MAC | Media Access Control |
| MaxCTD | maximum cell transfer delay |
| MBS | maximum burst size |
| MCR | minimum cell rate |
| MD5 | Message Digest 5 |
| MIB | Management Information Base |
| MIS | Management Information System |
| MOP | Maintenance Operation Protocol |
| MOTD | message-of-the-day |
| MTU | maximum transmission unit |
| NCP | Network Control Protocol or Network Control Program |
| NIC | network interface card |
| NLESO | Network Level Extended Security Option |
| NNI | Network-to-Network Interface |
| NSAP | network service access point |
| NTP | Network Time Protocol |
| NVRAM | nonvolatile random-access memory |
| OAM | Operation, Administration, and Maintenance |
| OCB | outgoing calls barred |
| OSF | oversubscription factor |
| PAM | port adapter module |
| PAP | Password Authentication Protocol |
| PCI | protocol control information |
| PCMCIA | Personal Computer Memory Card International Association |
| PCR | peak cell rate |
| PDU | protocol data unit |
| PGL | peer group leader |
| PHY | physical layer |
| PIE | protocol information element |
| ping | packet internet groper |
| PLCP | physical layer convergence procedure |
| PNNI | Private Network-Network Interface or Private Network Node Interface |
| PPP | Point-to-Point Protocol |
| PSTN DDR | Public Switched Telephone Network dial-on-demand routing |
| PTSE | PNNI topology state element |
| PTSP | PNNI topology state packet |
| PVC | permanent virtual circuit |
| PVCC | permanent virtual channel connection |
| PVCL | permanent virtual channel link |
| PVP | permanent virtual path |
| PVPC | permanent virtual path connection |
| PVPL | permanent virtual path link |
| QOS | quality of service |
| QSAAL | Q.2931 protocol over signalling ATM adaptation layer |
| RARP | Reverse Address Resolution Protocol |
| RCC | routing control channels |
| rcp | remote copy protocol |
| RDI | remote defect indication |
| RFC | Request For Comments |
| RLP | Resource Location Protocol |
| RM | resource management |
| RMON | Remote Monitoring |
| ROM | read-only memory |
| rsh | remote shell protocol |
| RSRB | remote source-route bridging |
| RSVP | Resource Reservation Protocol |
| SAP | service access point |
| SCR | sustainable cell rate |
| SCRMF | Sustained Cell Rate Margin Factor |
| SD | sequential data |
| SDLC | Synchronous Data Link Control |
| SDU | service data unit |
| SLIP | Serial Line Internet Protocol |
| SMDS | Switched Multimegabit Data Service |
| SNAP | Subnetwork Access Protocol |
| SNMP | Simple Network Management Protocol |
| SPF | shortest path first |
| SSCOP | Service Specific Connection Oriented Protocol |
| SSE | silicon switching engine |
| SSRP | Simple Server Redundancy Protocol |
| STUN | serial tunnel |
| SVC | switched virtual circuit |
| SVP | switched virtual path |
| TACACS | Terminal Access Controller Access Control System |
| TC | tag-controlled |
| TCP | Transmission Control Protocol |
| TDP | Tag Distribution Protocol |
| TFIB | Tag Forwarding Information Base |
| TFTP | Trivial File Transfer Protocol |
| TIB | Tag Information Base |
| TSP | tag-switched path or topology state packet |
| TTL | Time To Live |
| TVC | tag VC |
| UART | Universal Asynchronous Receiver/Transmitter |
| UBR | unspecified bit rate |
| UDP | User Datagram Protocol |
| UNI | User-Network Interface |
| UPC | usage parameter control |
| UTC | Coordinated Universal Time |
| UUPC | UNIX-to-UNIX Copy Program |
| VBR | variable bit rate |
| VBR-NRT | variable bit rate non-real time |
| VBR-RT | variable bit rate-real time |
| VC | virtual channel |
| VCC | virtual channel connection |
| VCD | virtual circuit descriptor |
| VCI | virtual channel identifier |
| VLAN | virtual LAN |
| VP | virtual path |
| VPC | virtual path connection |
| VPI | virtual path identifier |
| WRR | weighted round-robin |
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