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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. 
 
 
To create an IPv6 MBGP peer group, you need to enable an existing IPv6 unicast peer group in 
IPv6 MBGP address family view. 
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.