H3C Technologies H3C SR8800 - Manual (Page 231)

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Step Command Remarks
3. Configure BGP route
distribution filtering policies.
• Configure the filtering of
redistributed routes:
filter-policy { acl-number |
ip-prefix ip-prefix-name }
export [ direct | isis process-id
| ospf process-id | rip
process-id | | static ]
• Reference a routing policy to
filter advertisements to a
peer/peer group:
peer { group-name |
ip-address } route-policy
route-policy-name export
• Reference an ACL to filter
advertisements to a peer/peer
group:
peer { group-name |
ip-address } filter-policy
acl-number export
• Reference an AS path ACL to
filter routing information sent to
a peer/peer group:
peer { group-name |
ip-address } as-path-acl
as-path-acl-number export
• Reference an IP prefix list to
filter routing information sent to
a peer/peer group:
peer { group-name |
ip-address } ip-prefix
ip-prefix-name export
Configure at least one command.
Not configured by default.
You can configure a filtering policy
as needed.
If several filtering policies are
configured, they are applied in the
following sequence:
4. filter-policy export
5. peer filter-policy export
6. peer as-path-acl export
7. peer ip-prefix export
8. peer route-policy export
Only routes passing the first policy
can go to the next, and only routes
passing all the configured policies
can be advertised.
Configuring BGP route reception filtering policies
Only routes permitted by the configured filtering policies can be installed into the local BGP routing table.
The members of a peer group can have different route reception filtering policies from the peer group.
To configure BGP route reception filtering policies:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view. bgp as-number N/A