Alcatel-Lucent 6850 Switch User Manual


 
Routing Policies Configuring BGP
page 4-52 OmniSwitch 6800/6850/9000 Advanced Routing Configuration Guide December 2007
Reconfiguring Peer Policies
You can configure policies and assign these policies to a BGP peer, either to control in-bound routes or
out-bound routes advertisement. Additionally, it is possible to change or modify these peer policies, after
they are assigned to a peer.
Once the policies have been modified, they have to be re-applied to the peer. To re-apply the policies to
only the peer under consideration, you can use the in-reconfigure and the out-reconfigure commands.
To reconfigure a peer’s in policies, enter the peer’s IP address with the ip bgp neighbor clear soft
command as shown:
-> ip bgp neighbor 172.22.2.0 clear soft in
To reconfigure a peer’s out policies, enter the peer IP address with the ip bgp neighbor clear soft
command, as shown:
-> ip bgp neighbor 172.22.2.0 clear soft out
Displaying Policies
The following commands are used to display the various policies configured on a BGP router:
For more information about the output from these show commands, see the OmniSwitch CLI Reference
Guide.
show ip bgp policy aspath-list Displays information on policies based on AS path criteria.
show ip bgp policy community-
list
Displays information on policies based on community list criteria.
show ip bgp policy prefix-list Displays information on policies based on route prefix criteria.
show ip bgp policy route-map Displays information on currently configured route maps.