Zte ZXR10 2900E Series - LLDP Configuration

Chapter5ServiceConguration
NumVlanIdGroupLast_ReportPortMember
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11225.0.0.110.40.1.102-3
5.36LLDPConguration
LLDPOverview
TheLinkLayerDiscoveryProtocol(LLDP)isanewprotocoldenedinthe802.1ab.This
protocolallowsneighboringdevicestosendmessagestoeachothertoupdatephysical
topologyinformationandestablishManagementInformationBases(MIBs).TheLLDP
workowisdescribedbelow:
1.Thelocaldevicesendsitslinkandmanagementinformationtoaneighbordevice.
2.Thelocaldevicereceivesthenetworkmanagementinformationofaneighbordevice.
3.TheMIBofthelocaldevicestoresthenetworkmanagementinformationofall
neighbordevices,andanetworkmanagementprogramcanquerylayer-2connection
informationintheMIB.
TheLLDPisnotacongurationprotocoloftheremotesystemorasignalingcontrol
protocolusedbetweentwoports.TheLLDPdiscoverslayer-2protocolconguration
conictsbetweenneighbordevices,butitonlyreportstheproblemtoanupper-layer
networkmanagementdevice,withoutprovidinganymechanismtosolvetheproblem.
TheLLDPissimplyaneighbordiscoveryprotocolthatdenesastandardfornetwork
devices(suchasswitches,routers,andWLANaccesspoints)intheEthernettoadvertise
theiridentitiestoothernodesinthenetworkandstorediscoveryinformationofallneighbor
devices.Forexample,devicecongurationanddeviceIDscanbeadvertisedbytheLLDP .
TheLLDPdenesauniversaladvertisementinformationset,aprotocolforsending
theadvertisementinformation,andamethodforstoringthereceivedadvertisement
information.Thedevicethatwantstoadvertiseitsinformationcanplacemultiplepieces
ofadvertisementinformationintoaLinkLayerDiscoveryProtocolDataUnit(LLDPDU).
TheLLDPDUcontainsavariable-lengthmessageunit(calledTLVs),whicharedescribed
below:
lType:indicatesthetypeofthemessagetobesent.
lLength:indicatesthenumberofbytesinthemessage.
lValue:indicatesthecontentstobesent.
EachLLDPDUcontainsfourmandatoryTLVsandoneoptionalTLV:
lChassisIDTLVandPortIDTLV:identifythesender.
lTLLTLV:notiesthereceiverofthestorageperiodofamessage.Ifthereceiverdoes
notreceiveanyupdatemessagewithinthespeciedperiod,thereceiverdiscardsall
therelatedmessages.ArecommendedupdatefrequencyisdenedbytheIEEE,that
is,tosendmessagesat30-secondintervals.
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SJ-20130731155059-002|2013-11-27(R1.0)ZTEProprietaryandCondential