Zte ZXR10 2900E Series - ZESR Configuration; Table 5-3 Basic ZESR Concepts

ZXR102900ESeriesCongurationGuide
5.31ZESRConguration
ZESROverview
ZESRisaprivateringnetworkprotectiontechnologydevelopedbyZTECorporation.
EvolvedfromEAPS,ZESRensuresthatthereisonlyonelogicallyconnectedpath
betweenanytwonodesintheringnetwork.
BasicZESRConcepts
ForadescriptionofthebasicZESRconcepts,seeTable5-3.
Table5-3BasicZESRConcepts
NameDescription
ZESRDomainand
ZESRNode
AZESRdomainconsistsofacontrolVLANandaprotectioninstance.
ThedevicethatisconguredwithZESRiscalledaZESRnode.AllZESR
nodesinthesameZESRdomainmustbeconguredwiththesamecontrol
VLANandprotectioninstance.
ControlVLANThecontrolVLANofaZESRdomainforwardsZESRprotocolpackets.A
controlVLANisrequiredforaZESRdomain.
ProtectionInstance
andServiceVLAN
AninstanceinMSTPisusedastheprotectioninstanceofaZESRdomain.
TheVLANinaprotectioninstance(thatis,serviceVLAN)isusedforservice
datatransmission.
MajorZESRRing
andSecondary
ZESRRing
AZESRdomainsupportsring-basedhierarchywiththreelevels,including
level0,level1,andlevel2.Amongthem,level0isthehighestlevelandlevel
2isthelowestlevel.
Aringwithlevel0iscalledaprimaryring,whilearingwithlevel1orlevel
2iscalledasecondaryring.
ZESRRingStateTherearetwostatesforaZESRring:UPandDOWN.
lUPindicatesthateachlinkinaringoperatesproperly.
lDOWNindicatesthatthereisoneormoredisconnectedlinksinaring.
ZESRNodeRoleAZESRnodecanactasamasternode,atransitnode,anedgecontrolnode,
oranedgeassistantnode.
lAmasternodeimplementsthecontrolfunctionandtransmitsdatainaring.
lAtransitnodetransmitsdatainaring.
lAnedgecontrolnodeimplementsthecontrolfunctionandtransmitsdata
inasecondaryring.
lAnedgeassistantnodetransmitsdatainasecondaryring.
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SJ-20130731155059-002|2013-11-27(R1.0)ZTEProprietaryandCondential