Configuring Inter-As Ipv6 Vpn; Configuring Inter-As Ipv6 Vpn Option A; Configuring Inter-As Ipv6 Vpn Option C - HP 6127xlg Configuration Manual

Step
17. Configure filtering of reflected
routes.

Configuring inter-AS IPv6 VPN

If the MPLS backbone spans multiple ASs, you must configure inter-AS IPv6 VPN.
There are three inter-AS VPN solutions (for more information, see
MPLS L3VPN supports only inter-AS VPN option A and option C.
Before configuring inter-AS IPv6 VPN, complete these tasks:
Configure an IGP for the MPLS backbone in each AS to ensure IP connectivity.
•
Configure basic MPLS for the MPLS backbone of each AS.
•
Configure MPLS LDP for the MPLS backbones so that LDP LSPs can be established.
•
The following sections describe inter-AS IPv6 VPN option A and option C. Select one according to your
network scenario.

Configuring inter-AS IPv6 VPN option A

Inter-AS IPv6 VPN option A applies to scenarios where the number of VPNs and that of VPN routes on
the PEs are relatively small.
To configure inter-AS IPv6 option A:
Configure basic IPv6 MPLS L3VPN on each AS.
•
Configure VPN instances on both PEs and ASBR-PEs. The VPN instances on PEs allow CEs to access
•
the network, and those on ASBR-PEs are for access of the peer ASBR-PEs.
For more configuration information, see
In the inter-AS IPv6 VPN option A solution, for the same IPv6 VPN, the route targets configured on the PEs
must match those configured on the ASBR-PEs in the same AS. This makes sure VPN routes sent by the PEs
(or ASBR-PEs) can be received by the ASBR-PEs (or PEs). Route targets configured on the PEs in different
ASs do not have such requirements.

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.
Command
rr-filter
extended-community-number
"Configuring MPLS
288
Remarks
By default, an RR does not filter
reflected routes.
Only IBGP routes whose extended
community attribute matches the
specified community list are
reflected.
By configuring different filtering
policies on RRs, you can implement
load balancing among the RRs.
"Configuring MPLS
L3VPN."
L3VPN"). IPv6