Zte ZXR10 ZSR V2 - Chapter 11 IPv6 Static Multicast Configuration

Chapter11
IPv6StaticMulticast
Conguration
TableofContents
IPv6StaticMulticastOverview.................................................................................11-1
ConguringIPv6StaticMulticast..............................................................................11-2
IPv6StaticMulticastCongurationExample.............................................................
11-3
11.1IPv6StaticMulticastOverview
Staticmulticastroutesareusedforforwardingmulticastpacketsthroughaspecicpath
insteadoftheoptimumpathoftheunicastroute.
Staticmulticastprovidestheoutgoingandincominginterfacesintheuser-congured
multicastroutingtable.Amulticastforwardingtableisformedinaccordancewiththe
congurationofusers.Ifastaticmulticastrouteandadynamicmulticastrouteexist
concurrently,thestaticmulticastroutehasahigherpriority.Thelogicalpositionofstatic
multicastisequaltoPIM-SMandPIM-DM.Itcanbeunderstoodasaspecialmulticast
routingprotocol.
Staticmulticastroutesservethefollowingtwopurposesinaccordancewithdifferent
applicationenvironments:
lChangingRPFroutes
Ingeneral,multicasthasthesamenetworktopologyarchitecturewithunicast.
Multicastdataistransmittedthroughthesamepathastheunicastdata.Astatic
multicastroutecanbeconguredforchanginganRPFroute,sothatatransmission
pathdifferentfromthatofunicastdataiscreatedformulticastdata.
lMakinganRPFrouteuninterrupted
Whenaunicastrouteisblockedinthenetwork,data(includingmulticastdata)cannot
beforwardedbecauseofnoRPFroute.AnRPFroutecanbegeneratedbyconguring
astaticmulticastroute,sothatamulticasttableentryiscreatedtoguidemulticastdata
forwarding.
MulticastroutingprotocolsusetheRPFcheckmechanismduringcreationofmulticast
routingentriestoensurethatmulticastdatacanbetransmittedthroughacorrectpath.
Thiscanalsoavoidgenerationofloopsduetovariousreasons.
11-1
SJ-20140504150128-018|2014-05-10(R1.0)ZTEProprietaryandCondential