ZXR10T600/T1200UserManual(IPv6Volume)
�OSPFv3processesprotocolonlink,notonsubnet.
IPv6usesthetermoflinktodescribethefacilitiesormediums
usedbynodesforcommunicationsoverthelinklayer .Nodes
areconnectedwithlinks.MultipleIPsubnetscanbeattached
tothesamelink.TwonodesindifferentIPsubnetscancom-
municatewitheachotherdirectlyoverasinglelink.
�AddresssemantemeisdeletedfromOSPFv3.
TheOSPFpacketcontainsnoIPv6addressexceptfortheLSA
netloadcarriedbylinkstateupdatepacket.
TherouterLSAandnetworkLSAdonotcontainnetworkad-
dresses,andonlyindicatetopologyinformationsimply.
TheOSPFrouterIDandtheLSAlinkstateIDarereservedtobe
theIPv432-bit,withoutbeingassociatedwithIPv6addresses.
�OSPFv3extendstherangeofooding.
TheLSeldoftheLSAreectsitsoodingrange.LSAfeatures
thefollowingthreeoodingranges:
�LinkLocalRange
LSAonlyoodsinlocallinks.Thisrangeisapplicableto
thelinkLSA.
�AreaRange
TheLSAonlyoodsinasingleOSPFarea.Thisrangeis
applicabletotherouterLSA,networkLSA,inter-areaprex
LSA,Inter-arearouterLSAandintra-areaprexLSA.
�ASDomainRange
TheLSAoodsinthewholeOSPFv3routedomain.Thisis
applicabletoASexternalLSA.Eachlinksupportsmultiple
instances.OSPFsupportstorunmultipleOSPFprotocol
instancesoverasinglelink.
�Usageoflinklocaladdress.
TheIPv6linklocaladdressesareusedforneighbordiscovery
andautomaticcongurationoverasinglelink.IPv6routers
donotforwardtheIPv6packetscontaininglinklocalsource
addresses.TheIPv6addressrangethatisallocatedtothelink
localunicastaddressesisFE80/10.
ExceptforallOSPFinterfacesinthevirtuallink,linklocalad-
dressesrelatedtointerfacescansendOSPFpacketsassource
addresses.Inthevirtuallink,onlytheIPaddressintheglobal
rangeorofalocalsitecanserveasthesourceaddress.
ThelinklocaladdressesoccurintheLSAofOSPFlinkbutare
notallowedtooccurinotherLSAtypes.
�ThechangingofauthenticationonOSPFv3.
Theauthenticationtypeandauthenticationeldaredeleted
fromtheIPv6OSPFheader .Alltheauthentication-related
eldsdonotoccurintheOSPFareaandtheinterfacepacket
structure.TheIPv6OSPFemploysIPv6-providedauthenti-
cationmechanismtorealizeintegrityandcondentialityin
packetexchanging.
�ThechangingofpacketformatonOSPFv3.
34CondentialandProprietaryInformationofZTECORPORATION