Chapter18
6PEConguration
TableofContents
6PEOverview..........................................................................................................18-1
Conguring6PE.......................................................................................................18-2
6PECongurationExample......................................................................................18-2
18.16PEOverview
IPv6ProviderEdge(referredtoas6PEinshort)enablesisolatedIPv6CEroutersto
communicatewitheachotherthroughIPv4PEroutersoveranMPLSIPv4backbone
network.
6PEhasthefollowingfeatures:
lTheIPv6protocolisimplementedonlyonthespeciedPErouters.
lThePEroutersusetheMP-BGPprotocoltotransmitIPv6routesoverthebackbone
network
lTheMPLSlabelisassignedtotheIPv6routesbythePErouters,andtransparently
transmittedbetweenthePErouters.
lAtwo-layerMPLSlabelstackisusedtotransmitIPv6packetsovertheMPLSIPv4
backbonenetwork.ThelabelsareclassiedintotheLDPlabels(intherstlayer)for
theegressPEroutersandthePEIPv6labels(inthesecondlayer)
Duringimplementations,theMPLS-labeledIPv6routesareadvertisedthroughMP-BGP .
Figure18-1illustratestheimplementationof6PE.
Figure18-16PEImplementation
18-1
SJ-20140504150128-018|2014-05-10(R1.0)ZTEProprietaryandCondential