H3C Technologies H3C S10500 Series Switches - Manual (Page 353)

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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 network schemes and functions
IPv6 MPLS L3VPN supports the following network schemes and functions:
• Basic VPN
• 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
Configuring inter-AS IPv6 VPN
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 must perform some specific
configurations in addition to the basic IPv6 MPLS
L3VPN configuration. See the related sections for
details.
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
Creating a VPN instance Required
Associating a VPN instance with an interface Required
Configuring VPN instances
Configuring route related attributes for a VPN
instance
Optional