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134 CHAPTER 5: IP ROUTING PROTOCOL OPERATION
In BGP, no authentication is performed in setting up TCP connections, by default.
The multicast extension configured in BGP view is also available in MBGP, because
they use the same TCP link.
Configuring the Route Filtering of a Peer (Group)
The Switch 8800 supports filtering imported and advertised routes to peers
(groups) through the route-policy, AS path list, ACL, and ip prefix list.
The route filtering policy of advertised routes, configured for each member of a
peer group, must be the same as that of the peer group. However, their route
filtering policies of ingress routes may be different.
Perform the following configurations in BGP view.
Configuring the Route Policy for a Peer (Group)
By default, no route policy is applied to a peer or a peer group.
Configuring a Route Filtering Policy Based on IP ACL for a Peer (Group).
By default, route filtering based on IP ACL for a peer or peer group is disabled.
Configuring Route Filtering Policy Based on an AS Path List for a Peer
(Group).
Table 107 Configuring the Route Policy for a Peer (Group)
Operation Command
Configure the ingress route policy for a peer
(group)
peer { peer-address | group-name }
route-policy route-policy-name import
Remove the ingress route policy of a peer
(group)
undo peer { peer-address | group-name }
route-policy policy-name import
Configure egress route policy for a peer group peer group-name route-policy
route-policy-name export
Remove the egress route policy of a peer
group
undo peer group-name route-policy
route-policy-name export
Table 108 Configuring a Route Filtering Policy Based on IP ACL for a Peer (Group)
Operation Command
Configure the ingress route filtering policy
based on IP ACL for
a peer (group)
peer { peer-address | group-name }
filter-policy acl-number import
Remove the ingress route filtering policy based
on IP ACL of a peer (group)
undo peer { peer-address | group-name }
filter-policy acl-number import
Configure the egress route filtering policy
based on IP ACL for
a peer group
peer group-name filter-policy acl-number
export
Remove the egress route filtering policy based
on IP ACL for
a peer group
undo peer group-name filter-policy
acl-number export
Table 109 Configuring Route Filtering Policy Based on an AS Path List for a Peer (Group)
Operation Command
Configure the ingress route filtering policy
based on AS path list for a peer (group
)
peer { peer-address | group-name }
as-path-acl acl-number import