Configuring Inbound Mbgp Route Filtering - 3Com S7906E Configuration Manual

To do...
Enter system view
Enter BGP view
Enter IPv4 MBGP address
family view
Configure the filtering of
redistributed routes
Apply a route policy to
advertisements to an IPv4
MBGP peer/peer group
Reference an ACL to filter
advertisements to an IPv4
MBGP peer/peer group
Reference an AS path ACL to
filer route advertisements to an
IPv4 MBGP peer/peer group
Reference an IP prefix list to
filer route advertisements to an
IPv4 MBGP peer/peer group

Configuring Inbound MBGP Route Filtering

By configuring MBGP route reception filtering policies, you can filter out unqualified routes from an
MBGP peer or peer group.
If several filtering policies are configured, they are applied in the following sequence:
filter-policy import
peer filter-policy import
peer as-path-acl import
peer ip-prefix import
peer route-policy import
Only the routes that have passed all the configured policies can be advertised.
Follow these steps to configure MBGP route reception filtering policies:
To do...
Enter system view
Enter BGP view
Enter IPv4 MBGP address
family view
Use the command...
system-view
bgp as-number
ipv4-family multicast
filter-policy { acl-number |
ip-prefix ip-prefix-name }
export [ direct | isis process-id
| ospf process-id | rip
process-id | static ]
peer { group-name |
peer-address } route-policy
route-policy-name export
peer { group-name |
ip-address } filter-policy
acl-number export
peer { group-name |
ip-address } as-path-acl
as-path-acl-number export
peer { group-name |
ip-address } ip-prefix
ip-prefix-name export
Use the command...
system-view
bgp as-number
ipv4-family multicast
1-6
Remarks
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At least one of these
approaches is required. No
outbound route filtering is
configured by default
Remarks
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