Reference Guide

204 | Border Gateway Protocol
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To view the BGP configuration, use the show config command in CONFIGURATION ROUTER BGP
mode. To view a route map configuration, use the
show route-map command in EXEC Privilege mode.
To view which BGP routes meet an IP Community or Extended Community list’s criteria, use the
show ip
bgp
{community-list | extcommunity-list} command in EXEC Privilege mode.
Manipulate the COMMUNITY attribute
In addition to permitting or denying routes based on the values of the COMMUNITY attributes, you can
manipulate the COMMUNITY attribute value and send the COMMUNITY attribute with the route
information.
By default, FTOS does not send the COMMUNITY attribute.
Use the following command in the CONFIGURATION ROUTER BGP mode to send the COMMUNITY
attribute to BGP neighbors.
To view the BGP configuration, use the
show config command in the CONFIGURATION ROUTER BGP
mode.
If you want to remove or add a specific COMMUNITY number from a BGP path, you must create a route
map with one or both of the following statements in the route map. Then apply that route map to a BGP
neighbor or peer group. Use these commands in the following sequence, starting in the
CONFIGURATION mode:
5
neighbor {ip-address |
peer-group-name}
route-map
map-name {
in | out}
CONFIG-ROUTER-BGP Apply the route map to the neighbor or peer
group’s incoming or outgoing routes.
Command Syntax Command Mode Purpose
neighbor {ip-address |
peer-group-name}
send-community
CONFIG-ROUTER-BGP Enable the software to send the router’s
COMMUNITY attribute to the BGP neighbor
or peer group specified.
Step Command Syntax Command Mode Purpose
1
route-map map-name
[
permit | deny]
[sequence-number]
CONFIGURATION Enter the ROUTE-MAP mode and assign a name
to a route map.
Step Command Syntax Command Mode Purpose