Administrator Guide

Layer 3 Routing Commands 1333
User Guidelines
The route target (RT) extended community attribute is configured with the
rt keyword. This attribute is used to identify VRFs that may receive routes
that are tagged with the configured route target. Configuring the route target
extended attribute with a route allows that route to be placed in the per-site
forwarding tables that are used for routing traffic that is received from
corresponding sites. Only one route target can be specified in a single set
extcommunity rt command. To specify more than one route target, issue the
command again with the additive keyword.
By default, specifying route targets causes the system to replace existing route
targets with the new route targets, unless the additive keyword is used. The
use of the additive keyword causes the system to add the new route targets to
the existing route target list, but does not replace any existing route targets.
Command History
Introduced in version 6.3.0.1 firmware.
Example
The following example shows how to set the extended community attribute
for route target with route-maps.
(R1)(Config)# ip extcommunity-list 10 permit rt 1:1
(R1)(config)# route-map SEND_OUT permit 10
(R1)(config-route-map)# match extcommunity 13
(R1)(config-route-map)# set extcommunity rt 10:10 additive
(R1)(config-route-map)# exit
set extcommunity soo
Use the set extcommunity soo command to set BGP extended community
attributes for the site of origin. Use the no form of the command to remove
the extended community attributes for the site of origin.
NOTE: This command is effective only if BGP is running on the router.
Syntax
set extcommunity soo value [additive]
no set extcommunity soo
2CSNXXX_SWUM204.book Page 1333 Monday, January 25, 2016 1:25 PM