Configuring inter-as ipv6 vpn, Configuration prerequisites – H3C Technologies H3C SR8800 User Manual

Page 371

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Step Command

Remarks

13.

Configure BGP updates to the
peer to not carry private AS

numbers.

peer ip-address public-as-only

Optional
By default, a BGP update carries

private AS numbers.

14.

Apply a routing policy for the
peer.

peer ip-address route-policy
route-policy-name { export |

import }

Optional
By default, no routing policy is

applied for a peer.

15.

Enable VPN target filtering for
received BGP-VPNv6

subaddress family routes.

policy vpn-target

Optional
Enabled by default

16.

Configure the local PE as the
route reflector and specify the

peer as the client.

peer ip-address reflect-client

Optional
No route reflector or client is
configured by default.

17.

Enable route reflection
between clients.

reflect between-clients

Optional
Enabled by default

18.

Configure a cluster ID for the
route reflector.

reflector cluster-id { cluster-id |
ip-address }

Optional
By default, a route reflector uses its
router ID as the cluster ID.

19.

Create an RR reflection policy. rr-filter

extended-community-list-number

Optional

NOTE:

For information about IPv6 BGP routing features, see

Layer 3—IP Routing Configuration Guide.

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 these tasks:

•

Configuring an IGP for the MPLS backbone in each AS to implement IP connectivity

•

Configuring basic MPLS capabilities for the MPLS backbone of each AS

•

Configuring 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.

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