User manual

Table Of Contents
Chapter10
ZESSConfiguration
TableofContents
ZESSOverview.................................................................81
ConguringZESS..............................................................82
ZESSCongurationExample...............................................85
ZESSMaintenance.............................................................88
ZESSOverview
ZESSisZTEEthernetSmartSwitchtechnology.Itisefcientlink
switchmechanism.Whenfaultoccurs,mainlinkcanswitchto
standbylinkautomaticallyandquicklytoensureservicedatanor-
maltransmission.
Functiondescriptionisasfollows:AsshowninFigure22,node1
supportsZESSfunction,ofwhichport1isprimaryportandport2
issecondaryport.Whennode1detectsthatbothprimaryportand
secondaryportareup,blocksprotectionserviceVLANforwarding
functionofsecondaryport.Whennode1detectsthatprimaryport
isDOWN,blocksthatofprimaryportandopenthatofsecondary
port.Whennode1detectsthatprimaryportrecoversasUP ,inin-
versionmode,openprimaryportandblocksecondaryportagain,
whereasinnon-inversionmode,keepprimaryportasblockedand
secondaryportasopen.Inaddition,whenZESSisswitching,FDB
ofblockportneedtobeupdated.
CondentialandProprietaryInformationofZTECORPORATION81