Zte ZXR10 2900E Series - Figure 5-43 ZESS Network Topology

Chapter5ServiceConguration
Figure5-43ZESSNetworkTopology
HereisadescriptionoftheZESSoperatingow:
1.Intheinitialstate,boththeprimarylinkandthesecondarylinkoperateproperly.Then
ZESSblocksthesecondarylinkandusestheprimarylinkfordataforwarding.
2.Whentheprimarylinkisdisconnected,ZESSrapidlyswitchesthesecondarylinkto
Forwardingstateandblockstheprimarylink.
3.Whentheprimarylinkrecoversfromdisconnection,ifreversalmodeisenabled,
ZESSwillsettheprimarylinktoForwardingstateandblocksthesecondarylink;if
non-reversalmodeisenabled,ZESSwillblocktheprimarylinkandcontinuestouse
thesecondarylinkfordatatransmission.
Note:
Inreversalmode,whentheprimarylinkrecoversfromdisconnection,thelinkisnot
switchedimmediatelybutafteraperiodofthepreuptime.
ConguringZESS
TheZESScongurationincludesthefollowingcommands:
StepCommandFunction
1ZXR10(config)#setzessdomain<1-4>
protect-instance<1-16>primary{port
<port-name>|trunk<trunk-name>}secondary
{port<port-name>|trunk<trunk-name>}
CreatesaZESSdomain.
ThecontrolVLANmustbeelectedfrom
idleVLANs.Itcannothaveanyconictwith
serviceVLANsorNetworkManagement
VLANs.
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SJ-20130731155059-002|2013-11-27(R1.0)ZTEProprietaryandCondential