You can use the neighbor peer-group command to group IPv6 neighbors that have the same attributes and parameters.
You can associate neighbor IPv6 addresses with a BGP4+ peer group. All of the attributes that are allowed on a neighbor are also allowed on a peer group.
An attribute value configured for a neighbor takes precedence over the attribute value configured for a peer group. The default attribute is used if the neither the peer group nor the neighbor has the attribute configured.
BGP4+ peers and peer groups are activated in IPv6 address family configuration mode.