Configuring Inter-As Ipv6 Vpn; Configuration Prerequisites; Configuring Inter-As Ipv6 Vpn Option A - HP 12500 Series Configuration Manual

To do...
Configure a cluster ID for the route
reflector
Create an RR reflection policy
NOTE:
For information about IPv6 BGP routing features, see

Configuring inter-AS IPv6 VPN

If the MPLS backbone that carries the IPv6 VPN routes spans multiple ASs, you need to configure inter-AS
IPv6 VPN.
There are three inter-AS VPN solutions (for more information, see the chapter "Configuring MPLS
L3VPN"). IPv6 MPLS L3VPN supports only inter-AS VPN option A and option C.

Configuration prerequisites

Before configuring inter-AS IPv6 VPN, complete the following tasks:
Configure an IGP for the MPLS backbone in each AS to implement IP connectivity
•
Configure basic MPLS capabilities for the MPLS backbone of each AS
•
• Configure MPLS LDP for the MPLS backbones so that LDP LSPs can be established
NOTE:
The following sections describe inter-AS IPv6 VPN option A and option C. Select one according to your
networking 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. It is easy to implement.
Use the command...
reflector cluster-id { cluster-id |
ip-address }
rr-filter
extended-community-list-number
Layer 3—IP Routing Configuration Guide
349
Remarks
Optional
By default, each RR in a cluster uses
its own router ID as the cluster ID.
If more than one RR exists in a
cluster, use this command to
configure the same cluster ID for all
RRs in the cluster to avoid rout
loops.
Optional
By default, an RR does not filter the
reflected routes.
With an RR reflection policy, only
iBGP routes whose Extended
Communities attribute matches the
specified one are reflected.
By configuring different RR
reflection policies on different RRs,
you can implement load balancing
among the RRs.
.