3Com S7902E, Configuration Manual

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1-13
Configuring a Large Scale IPv6 MBGP Network
Configuration Prerequisites
Before configuring the following tasks, you need to configure IPv6 MBGP basic functions.
Configuring an IPv6 MBGP Peer Group
For easy management and configuration, you can organize some IPv6 MBGP peers having the same
route update policy into a group, known as a peer group. A policy configured for a peer group applies to
all the members in the group.
Follow these steps to configure an IPv6 MBGP peer group:
To do… Use the command… Remarks
Enter system view system-view
—
Enter BGP view bgp as-number —
Enter IPv6 address family view ipv6-family —
Create an IPv6 BGP peer
group group ipv6-group-name
[ external | internal ]
Required
Add a peer to the peer group
peer ipv6-address group
ipv6-group-name [ as-number
as-number ]
Required
By default, no peer is added.
Enter IPv6 MBGP address
family view
ipv6-family multicast —
Enable the configured IPv6
unicast BGP peer group to
create the IPv6 MBGP peer
group
peer ipv6-group-name enable Required
Add the IPv6 MBGP peer into
the peer group peer ipv6-address group
ipv6-group-name
Required
By default, no peer is added.
z
To create an IPv6 MBGP peer group, you need to enable an existing IPv6 unicast peer group in
IPv6 MBGP address family view.
z
Before adding an IPv6 MBGP peer to the IPv6 MBGP peer group, you need to add the
corresponding IPv6 BGP unicast peer to the corresponding IPv6 BGP unicast peer group.
Configuring IPv6 MBGP Community
A peer group allows a group of peers to share the same policy, while a community allows a group of
IPv6 MBGP routers in multiple ASs to share the same policy. The community attribute is propagated
among IPv6 MBGP peers and not restricted to AS boundaries.
You can reference a route policy to modify the community attribute for routes sent to a peer. In addition,
you can define extended community attributes as needed.