Accton Technology ES4626 - Manual (Page 570)

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Switch(config-route-map)#match address 2
Switch(config-route-map)#exit
Switch(config)#access-list 1 permit 11.1.0.0 0.0.255.255
Switch(config)#access-list 2 permit 0.0.0.0 255.255.255.255
Switch(config)#exit
Switch#clear ip bgp 16.1.1.6 soft out
In the following sample, configure the MED local preference of the routes from
neighbor 16.1.1.6 selectively according to the route community value. All the routes that
match the community list will set MED as 2000, community list com1 permits the route
with community value “100 200 300”or”900 901” to pass. This route may have other
community attributes. All the routes that pass community list com2 will set the local
preference as 500. But the route that can’t pass both com1 and com2 will be rejected.
Switch(config)#router bgp 100
Switch(config-router-bgp)#neighbor 16.1.1.6 remote-as 200
Switch(config-router-bgp)#neighbor 16.1.1.6 route-map match-community in
Switch(config-router-bgp)#exit
Switch(config)#route-map match-community permit 10
Switch(config-route-map)#match community com1
Switch(config-route-map)#set metric 2000
Switch(config-route-map)#exit
Switch(config)#route-map match-community permit 20
Switch(config-route-map)#match community com2
Switch(config-route-map)#set local-preference 500
Switch(config-route-map)#exit
Switch(config)#ip community-list com1 permit 100 200 300
Switch(config)#ip community-list com1 permit 900 901
Switch(config)#ip community-list com2 permit 88
Switch(config)#ip community-list com2 permit 90
Switch(config)#exit
Switch#clear ip bgp 16.1.1.6 soft out
13.8.4.4 Examples 4: configure BGP confederation
The following is the configuration of an AS. As the picture illustrated, SwitchB and
SwitchC establish IBGP connection. SwitchD is affiliated to AS 20.SwitchB and SwitchC
establish EBGP of inner AS confederation. AS10 and AS20 form AS confederation with
the AS number AS200; SwitchA belongs to AS100, SwitchB may create EBGP
connection by AS200.