User manual

Table Of Contents
ZXR105900/5200SeriesUserManual(EthernetSwitchingVolume)
Valuemeanstheactualinformationthatneedtosend.
EachLLDPDUcontainsfourforcedTLVsandanoptionalTLV:
1.DeviceIDTLV
2.PortIDTLV
3.TTLTLV
4.OptionalTLV
5.LLDPDUendTLV .
DeviceIDandportIDareusedforidentifyingtransmitter .
TTLTLVtellsreceiverthereservingperiodofallinformation.Ifthe
updateinformationfromtransmitterisnotreceivedintheperiod,
thereceiverwilldiscardallrelatedinformation.IEEEhasdened
asuggestingupdatefrequency,thatis,transmitonetimeevery
30s.
OptionalTLVincludesbasicmanagementTLVset(suchasport
descriptionTLV),specialTLVsetorganizedIEEE802.1,andspecial
TLVsetorganizedIEEE802.3
TheoccurrenceofLLDPDUendTLVindicatesLLDPDUisover .
ConfiguringLLDP
LLDPcongurationincludesglobalcongurationandinterfacecon-
guration.Onlynishesthesetwopartsofconguration,canthis
protocoltakeeffect.
Step
CommandFunction
1
ZXR10(config)#lldpenableThisenablesLLDP .
2
ZXR10(config)#lldphellotime<seconds>ThissetsLLDPpacketsending
interval.
Therangeoflldphellotimeis
<5-32768>,thedefaultis30.
3
ZXR10(config)#lldpholdtime<multiple>ThissetsLLDPpacketaging
time,theproductofhellotime
andparameterisagingtime.
Therangeoflldpholdtimeis
<2-10>,thedefaultis4.
4
ZXR10(config)#lldp{enable|rxdisable|txdisable|
rxenable|txenable|disabled}[interfacegei_1/1]
ThisconguresLLDPglobalor
interfacemanagementstatus.
LLDPConfiguration
Example
ConnectthetwodevicestoimplementLLDPprotocoldiscovery,as
showninFigure29.
110CondentialandProprietaryInformationofZTECORPORATION