Configuring inter-AS IPv6 VPN option C
To configure inter-AS IPv6 VPN option C, perform proper configurations on PEs and ASBR-PEs, and configure routing policies on the ASBR-PEs.
Configuring the PEs
Establish an IBGP peer relationship between a PE and an ASBR-PE in an AS, and an MP-EBGP peer relationship between PEs in different ASs.
The PEs and ASBR-PEs in an AS must be able to exchange labeled routes.
To configure a PE for inter-AS IPv6 VPN option C:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter BGP view. | bgp as-number | N/A |
3. Configure the ASBR-PE in the same AS as an IBGP peer. | peer { group-name | ip-address } as-number as-number | By default, no BGP peer is configured. |
4. Enter BGP IPv4 unicast address family view. | address-family ipv4 [ unicast ] | N/A |
5. Enable the PE to exchange BGP IPv4 unicast routes with the ASBR-PE in the same AS. | peer { group-name | ip-address } enable | By default, the PE does not exchange BGP IPv4 unicast routes with any peer. |
6. Enable the PE to exchange labeled routes with the ASBR-PE in the same AS. | peer { group-name | ip-address } label-route-capability | By default, the PE does not advertise labeled routes to any IPv4 peer/peer group. |
7. Return to BGP view. | quit | N/A |
8. Configure the PE of another AS as the EBGP peer. | peer { group-name | ip-address } as-number as-number | N/A |
9. Enter BGP VPNv6 address family view. | address-family vpnv6 | N/A |
10. Enable the PE to exchange BGP VPNv6 routing information with the EBGP peer. | peer ip-address enable | By default, the PE does not exchange labeled routes with any IPv4 peer/peer group. |
Configuring the ASBR-PEs
In the inter-AS IPv6 VPN option C solution, an inter-AS LSP is needed, and the routes advertised between the PEs and ASBRs must carry MPLS label information. The configuration is the same as that in the Inter-AS IPv4 VPN option C solution. For more information, see "Configuring MPLS L3VPN."
Configuring the routing policy
A routing policy on an ASBR-PE does the following:
Assigns MPLS labels to routes received from the PEs in the same AS before advertising them to the peer ASBR-PE.
Assigns new MPLS labels to the labeled routes to be advertised to the PEs in the same AS.
The configuration is the same as that in the Inter-AS IPv4 VPN option C solution. For more information, see "Configuring MPLS L3VPN."