HDB3, Hdlc, Hep | Panasonic 15000 manual

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List of terms

hard rerouting

See connection recovery (page 33).

HDB3

See high-density binary 3 zero maximum encoding (HDB3) (page 60).

HDLC

See high-level data link control (HDLC) (page 61)

HDLC mode

See frame-cell trunk (page 54).

HDLC-transparent data service (HTDS)

A service that transports HDLC-framed data across the network without interpretation, except that interframe flags are not transmitted. The efficiency of the transmission is increased by not transmitting flags.

header error control (HEC)

A CRC code found in the last byte of the ATM cell header that is used for verifying cell integrity.

hello packet

A type of PNNI routing packet that neighboring logical nodes exchange.

Hello protocol

The Hello protocol is a neighbor discovery protocol run over private network- to-network interface (PNNI) links between lowest level nodes and logical group nodes (LGNs).

HEP

See hot equipment protection (HEP) (page 62).

HG

See hunt group (HG) (page 62).

hierarchically complete source route

A stack of DTLs that represent a route across a PNNI routing domain. A DTL is included for each hierarchical level between and including the current level and the lowest visible level in which the source and destination nodes are reachable.

high-density binary 3 zero maximum encoding (HDB3)

An encoding technique used to transfer bits over E1 and E3 lines. To ensure 1’s density, HDB3 substitutes a bipolar violation where four or more 0s are to be sent in a row.

Nortel Multiservice Switch 7400/15000/20000

Terminology

NN10600-005 7.2S1 Standard

PCR7.2 and up March 2006

Copyright © 2006, Nortel

Nortel Confidential

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Panasonic 15000 manual HDB3, Hdlc, Hep

Contents

Terminology Page Contents Secure shell Ssh LRB AAL AAL1AAL2 AAL-5 ACC ACR Adpcm AdtfAini AIR Alarm agent AlarmAlarm collector Alarm indication signal AIS AMI AnidAnsi APC APSAQM ARP Asbr AsciiAsic ASM ATM bearer service ABS ATM adaptation layer type 1 AAL1ATM adaptation layer type 2 AAL2 ATM adaptation layer type 5 AAL-5 ATM multiprotocol encapsulation service ATM IP function processorATM layer ATM link AVL ICI B3ZSB8ZS Backbone router BackplaneBackplane bus Backplane control system BCS BCD BCIBCS Becn BFSBGP Bits BNXBOM BPV BRIBRM BSR Bus mode BundleBundle link Burst tolerance BT Bwod CAC CAR CASCAW CBC CBRCcitt CCR Cell delay variation CDV Cell delay variation tolerance CdvtCell Cell header CES CID Cidr CIR CLP CLRCMS Cnls COM Common transmit clock CTC mode Component administration system CASCommon part convergence sublayer Cpcs Common queuing Acelp Connection recovery Connection admission control CACConnection bandwidth control CBC Connection segment Connection-oriented routing CO Connection preservationConstant bit rate CBR Continuation of message cells COM Control processor CP switchover Control plane protection CPPControl processor CP Convergence sublayer CS CPP CpcsCPE CQC CRS CS-ACELPCsrm CSS-IE Customer identifier CID Customer network management CNMData circuit-terminating equipment DCE Data collection system DCS Data link switching DLSw Data flow preservationData link control DLC Data manipulation engine DME Dbnl DBRDCE DCS Dgcra DIN DlciDMA DME DNA DnsixDPN Dpnss Dprs DramDS0 DS1 Dtmf EAP EbgpEBR ECR EIR EOM EPD ESF EtsiEtsi Qsig Excess burst size Be Excess information rate EIRExit border node Explicit forward congestion indication Efci Exterior reachable address External address plan EAPExternal border gateway protocol Ebgp External gateway EG FAS FBAFCI Fecn FISFLM FMI Frame alignment signal FAS Foreign addressForward congestion indication FCI Forward explicit congestion notification Fecn Frame mode information FMI Frame relay managed cut-through switching MCSFrame relay service FRS Frame link monitoring FLM FR-ATM interworking service Frame relay-to-ATM interworking function FR-ATM IWFFR-ATM accounting FR-ATM gateway Frip FRMFRS FTM Gcra Gprs GQMGSM HDB3 HdlcHEP Hitless CP switchover Hitless servicesHigh-level data link control Hdlc High-speed serial interface Hssi HSM HssiHtds IAD IbgpICR Icmp Independent transmit clock ITC mode In-band synchronizationIncumbent segment Independent link Integrated Alarm Display IAD Integrated services digital network IsdnInstance Instance type Interim interswitch signaling protocol Iisp Interior gateway protocol IGPInternal border gateway protocol Ibgp Internal gateway Inter-region Multiservice Switch trunk Interrupting modeInternet control message protocol Icmp Internet group management protocol Igmp IP COS Ipifr IpivcIsdn ISO JT2 JVCLacp LAG LCN LD-CELPLDS LEN LIF LLP LMI Lnid LNN Lods LOF Logical channel LC Logical connection LCoLogical group node LGN Logical link LOS LPD LPTLRB LSA MBR MBS Mcdn MCRMCS Mdcr MGC MIBMID Mlfr MmtcMpanl Mpls MTU Multiprotocol label switching Mpls Multiservice access function processor MSA32 FPMultimedia traffic classes Mmtc Multimode MM Multiservice Access Function Processor MSA8 FP, 8-port Multiservice Passport access network link MpanlMultiservice Switch bus Multiservice Switch cluster MVP-E Nams IDNCS Nebs NEP Network service access point address Network interworking function NiwfNetwork management interface Nmif Network management interface system Nmis Nfas NFSNiwf Nmif Non-associated signaling Non-facility associated signaling NfasNodal state parameter Node ID NPI NRP NTP NTSOAM OC-N Operations, administration, and maintenance OAM Open Systems Interconnection OSIOperational attribute Operational card OSI Ospf Pabx Packet over Sonet Packet voice gateway PVGPanic Parent node Path administrator PA PassportPassport Carrier Release PCR Passport queue controller PQC Path bumping Path endpointPath optimization Path-oriented routing system Pors Spvc PBXPCM PCR Permanent switched permanent virtual circuit P-SPVC Peak cell rate PCRPeer database exchange protocol Peer group Pgid PGLPgle PGQ PID PIMPLC Pinx PMS PorsPOS Posix PPD PPIPQC PRI Priority guaranteed queuing PGQ Primary rate interface PRIPriority field Priority-tagged Propagation delay Protected default route PDRProcessor card section Processor control system PCS Protocol independent multicast-sparse mode PIM-SM Protocol data unit PDUProvider nodes P Provider edge router PE Ptse PstnPtsp PVC PVGPvid PVP RAI RaigRcos RCC RED Remote alarm indication RAI Replay alarmRemote defect indication RDI Remote group Reset Requested shaping rate RSRRerouting Rerouting node RID RIP RPF RPI RSA RSI RSRRsvp RTD SCR SCSSDS SDH Segmentation and reassembly SAR sublayer Serialization delayService Service access point SAP Sets SFQSFS Signaling Shared bus interface controller SbicShared memory Shared multicast distribution tree Signal processing module SPM Single bus modeSingle fabric mode Simple network management protocol Snmp Siwf SmdsSMS SNA Sonet SPT SPDSPE SPF SPISPM Spvp Stability timer Standard virtual path terminatorStandby State STM-1 STS-1STS-N SVC Switched permanent virtual path Spvp Switched virtual channel SVC, ATM networkingSwitched virtual circuit SVC See also virtual channel VC, ATM networking Switched virtual path SVP Switched voiceSwitchover Symmetric encryption TCI TCPTDM Tdma TDT Tftp TMS TodaTpid TPT Trace destination interface Trace destination nodeTrace source interface Trace source node TRM TTC2M UBR UDP UmtsUNI UPC UTC UTP VBD VBRVCC VCI VID Vipr Virtual circuit VC, frame relay networking Virtual Circuit System VCSVirtual interface Virtual IP router Vipr Virtual router access point Vrap Virtual path connection VPCVirtual path connection identifier Vpci Virtual path identifier VPI Vlan Vlan identifier VID Voice band data VBDVoice compression Voice gateway control protocol Vgcp VPC VpciVPI VPL VPT VPT-CACVrap Vrrp Vtds VuniWAN WFQ Wlfa WredXID Xntp XPDProtection Splitter cablePage Terminology