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By default, a peer (group) does not perform route filtering based on the AS path 
list.

Please perform the following configurations in IPV4 multicast sub-address family 
view.

By default, a peer (group) does not perform route filtering based on the prefix list.

MBGP supports the manual aggregation of routes. Manual aggregation 
aggregates the local MBGP routes. A series of parameters can be configured 
during manual route aggregation.

Please perform the following configurations in IPV4 multicast sub-address family 
view.

By default, MBGP does not aggregate local routes.

To ensure the interconnectivity among MBGP peers, it is necessary to establish 
fully-closed network among IBGP multicast peers. However, some internal MBGP 

Table 492   Configuring the AS-path-list-based route filtering policy for a peer (group)

Configure filtering policy for incoming packets 

peer { group-name | peer-address } 
as-path-acl acl-number import 

Remove incoming policy configuration 

undo peer { group-name | peer-address } 
as-path-acl acl-number import 

Configure routing policy for outgoing packets 

peer { group-name | peer-address } 
as-path-acl acl-number export 

Remove outgoing policy configuration 

undo peer { group-name | peer-address 
}as-path-acl acl-number export

Table 493   Configure prefix-list-based route filtering policy for a peer (group)

Configure filtering policy for incoming packets 

peer { group-name | peer-address } ip-prefix 
prefixname import 

Remove incoming policy configuration 

undo peer { group-name | peer-address } 
ip-prefix prefixname import 

Configure routing policy for outgoing packets 

peer {group-name ip-prefix prefixname 
export 

Remove outgoing policy configuration 

undo peer group-name ip-prefix prefixname 
export

Table 494   Configure MBGP route aggregation

Configure the 
aggregation of local 
routes 

aggregate address mask [ as-set | attribute-policy 
route-policy-name | detail-suppressed | origin-policy 
route-policy-name | suppress-policy route-policy-name ]* 

Remove the aggregation 
of local routes 

undo aggregate address mask [ as-set | attribute-policy 
route-policy-name | detail-suppressed | origin-policy 
route-policy-name | suppress-policy route-policy-name ]*