Using An As Path Access List; Using A Route Map - Motorola BSR 2000 Configuration And Management Manual

BSR 2000 Configuration and Management Guide

Using a Route Map

The commands in the following example configure Router Los Angeles using a route
map. In the commands to configure Router Los Angeles, Instance 10 or route map 10
assigns a weight of 1000 to any updates from AS 100. Instance 20 assigns a weight of
500 to updates from any other AS.
Example

Using an AS Path Access List

The commands in the following example configure Router Los Angeles using an AS
path access list. Filter List 1 assigns a weight attribute of 1000 to updates received
from neighbors from AS 100. Access List 1 permits any update whose AS-path
attribute begins with 100 (specified by "^"). The same is true for Access List 2
regarding AS 300. Filter List 2 assigns a weight attribute of 500 to updates received
from AS 300.
Example
12-30
MOT(config-bgp)#neighbor 3.3.3.1 remote-as 100
MOT(config-bgp)#neighbor 3.3.3.1 weight 1000
MOT(config-bgp)#neighbor 4.4.4.1 remote-as 300
MOT(config-bgp)#neighbor 4.4.4.1 weight 500
MOT(config)#router bgp 400
MOT(config-bgp)#neighbor 3.3.3.1 remote-as 100
MOT(config-bgp)#neighbor 3.3.3.1 route-map 10 in
MOT(config-bgp)#neighbor 4.4.4.1 remote-as 300
MOT(config-bgp)#neighbor 4.4.4.1 route-map 10 in
MOT(config-bgp)#exit
MOT(config)#ip as-path access-list 1 permit ^100
MOT(config)#route-map 10 permit 10
MOT(config)#match as-path 1
MOT(config)#set weight 1000
MOT(config)#route-map 10 permit 20
MOT(config)#set weight 500
MOT(config)#router bgp 400
MOT(config-bgp)#neighbor 3.3.3.1 remote-as 100
MOT(config-bgp)#neighbor 3.3.3.1 filter-list 1 weight 1000
MOT(config-bgp)#neighbor 4.4.4.1 remote-as 300
MOT(config-bgp)#neighbor 4.4.4.1 filter-list 2 weight 500
MOT(config-bgp)#exit
MOT(config)#ip as-path access-list 1 permit ^100
MOT(config)#ip as-path access-list 2 permit ^300
MGBI
Release 1.0
526360-001-00 Rev. B