By configuring route aggregation, you can reduce the size of the routing table of a peer. BGP4+ supports automatic aggregation and manual aggregation. Procedure
bgp { as-number-plain | as-number-dot }
ipv6-family [ unicast ]
aggregate ipv6-address prefix-length [ as-set | attribute-policy route-policy-name1 | detail-suppressed | origin-policy route-policy-name2 | suppress-policy route-policy-name3 ] *
Manual aggregation is valid for the routing entries in the local BGP4+ routing table. For example, if 9:3::1/64 does not exist in the BGP routing table, BGP4+ does not advertise the aggregated route even after the aggregate 9:3::1 64 command is run to aggregate this route.
When configuring manual aggregation of routes, you can apply various routing policies and set the route attributes.