H3C Technologies H3C SR8800 - Manual (Page 362)

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Then, the ingress PE advertises the VPN-IPv6 routes to the egress PE through MP-BGP.
Finally, the egress PE compares the export target attributes of the VPN-IPv6 routes with the import target
attributes that it maintains for the VPN instance and, if they are the same, adds the routes to the routing
table of the VPN instance.
The PEs use an IGP to ensure the connectivity between them.
Routing information exchange from the egress PE to the remote CE
The exchange of routing information between the egress PE and the remote CE is the same as that
between the local CE and the ingress PE.
IPv6 MPLS L3VPN networking schemes and functions
At present, IPv6 MPLS L3VPN supports the following networking schemes and functions:
• Basic VPN networking
• Inter-AS VPN option A
• Inter-AS VPN option C
• Carrier’s carrier
• Multi-VPN-instance CE
IPv6 MPLS L3VPN configuration task list
Complete the following tasks to configure IPv6 MPLS L3VPN:
Task Remarks
Configuring basic IPv6 MPLS L3VPN By configuring basic IPv6 MPLS L3VPN, you can
construct simple IPv6 VPN networks over an MPLS
backbone.
To deploy special IPv6 MPLS L3VPN networks, such as
inter-AS VPN, you also need to perform some specific
configurations in addition to the basic IPv6 MPLS
L3VPN configuration. For more information, see the
related sections.
Configuring inter-AS IPv6 VPN
Configuring routing on an MCE
Configuring basic IPv6 MPLS L3VPN
Basic IPv6 MPLS L3VPN configuration task list
The key task in IPv6 MPLS L3VPN configuration is to manage the advertisement of IPv6 VPN routes on the
MPLS backbone, including PE-CE route exchange and PE-PE route exchange.
Complete the following tasks to configure basic IPv6 MPLS L3VPN:
Task Remarks
Configuring VPN instances
Creating a VPN instance Required
Associating a VPN instance with an interface Required