Zte ZXR10 5250-52TC - Figure 5-43 ZESS Network Topology

ZXR105250SeriesCongurationGuide
NameDescription
Receive-VLANAReceive-VLANcanbeconguredonthedevicethatisconnectedwitha
ZESSnodeandshouldhavethesameVLANIDasthatofthecontrolVLAN
ofaZESSnode.
OnlyafteranodeisconguredwithaReceive-VLANwillitrefreshtheMAC
addresstablewhenitreceivesaFlushpacketfromthisVLANtoaccelerate
linkconvergence.
Protection
Instanceand
ServiceVLAN
AninstanceinMSTPisusedastheprotectioninstanceofaZESSdomain.
TheVLANinaprotectioninstance(thatis,serviceVLAN)isusedforservice
datatransmission.
Primary/Sec-
ondaryPortand
Primary/Sec-
ondaryLink
WhenadeviceisconguredwithaZESSdomain,theprimaryportandthe
secondaryportaredesignatedtoit.Thelinkwheretheprimaryportislocatedis
calledtheprimarylinkandthelinkwherethesecondaryportislocatediscalled
thesecondarylink.Bothlinkscanbackupeachother.
ReversalMode
andNon-Reversal
Mode
Intheconditionthattheprimarylinkisdisconnectedandthesecondarylinkisin
usefordatatransmission,iftheprimarylinkrecoversfromdisconnection,there
aretwomodesofprocessing:reversalmodeandnon-reversalmode.
lInreversalmode,ZESSswitchesdatatrafctotheprimarylinkandblocks
thesecondarylink.
lInnon-reversalmode,ZESScontinuestousethesecondarylinkfordata
transmissionandblockstheprimarylink.
ZESSOperatingFlow
Figure5-43showstheZESSnetworktopology.SwitchAisconguredwithaZESSdomain
withport_1/1astheprimaryportandport_1/2asthesecondaryport.
Figure5-43ZESSNetworkTopology
HereisadescriptionoftheZESSoperatingow:
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SJ-20131111172707-002|2013-11-27(R1.0)ZTEProprietaryandCondential