R21xx-HP FlexFabric 11900 Layer 3 IP Routing Configuration Guide

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• AS path list (see "Configuring routing policies")

Configuring BGP route distribution filtering policies

To configure BGP route distribution filtering policies, use the following methods:

• Use an ACL or prefix list to filter routing information advertised to all peers.

• Use a routing policy, ACL, AS path list, or prefix list to filter routing information advertised to a peer

or peer group.

If you configure multiple filtering policies, apply them in the following sequence:

1. filter-policy export

2. peer filter-policy export

3. peer as-path-acl export

4. peer prefix-list export

5. peer route-policy export

Only routes passing all the configured policies can be advertised.

To configure BGP route distribution filtering policies (IPv4):

Ste

Command

Remarks

1. Enter system view.

system-view N/A

2. Enter BGP view or BGP-VPN

instance view.

• Enter BGP view:

bgp as-number

• Enter BGP-VPN instance view:

a. bgp as-number

b. ip vpn-instance

vpn-instance-name

N/A

3. Enter BGP IPv4 unicast

address family view or

BGP-VPN IPv4 unicast

address family view.

ipv4-family [ unicast ] N/A