H3C Technologies H3C S10500 Series Switches - Manual (Page 460)

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Configuring IPv6 MBGP community
A peer group enables a group of peers to share the same policy, and a community enables 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 routing policy to modify the community attribute for routes sent to a peer. In addition,
you can define extended community attributes as required.
Follow these steps to advertise the community attribute to an IPv6 MBGP peer or a peer group:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Enter IPv6 MBGP address family
view
ipv6-family multicast —
Advertise the community attribute
to an IPv6 MBGP peer or a peer
group
peer { ipv6-group-name |
ipv6-address }
advertise-community
Required
By default, no community attribute
is advertised to any peer
group/peer.
Advertise the extended community
attribute to an IPv6 MBGP peer or
a peer group
peer { ipv6-group-name |
ipv6-address }
advertise-ext-community
Required
By default, no extended community
attribute is advertised to any peer
or peer group.
Apply a routing policy to routes
sent to an IPv6 MBGP peer or a
peer group
peer { ipv6-group-name |
ipv6-address } route-policy
route-policy-name export
Required
Not configured by default.
NOTE:
•
You must configure a routing policy to define the community attribute, and apply the policy to outgoing
routes.
• For more information about routing policy configuration, see Layer 3—IP Routing Configuration Guide.
Configuring an IPv6 MBGP route reflector
To guarantee connectivity between IPv6 multicast iBGP peers, you must make them fully meshed.
However, this becomes unpractical when too many IPv6 multicast iBGP peers exist. Using route reflectors
can solve the problem.
Follow these steps to configure an IPv6 BGP route reflector:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Enter IPv6 MBGP address family
view
ipv6-family multicast —