Layer 3 Routing Commands 1314
User Guidelines
Configure the route-target command once for each target extended
community. Routes that are learned and carry a specific route-target extended
community are imported into all VRFs configured with that particular
extended community as an import route target.
The configured export RT is advertised as an extended community in the MP-
BGP format to the eBGP peer. An RT is either:
• ASN related – Composed of an autonomous system number and an
arbitrary number.
• IP address related – Composed of an IP address and an arbitrary number.
This command is effective only if BGP is running on the router.
Command History
Introduced in version 6.3.0.1 firmware.
Example
The following example shows how to configure route target extended
community attributes for a VRF instance in IPv4. The result of this command
sequence is that VRF named Customer_A has two export extended
communities (100:10 and 300:10) and two import extended communities
(300:10 and 192.168.10.1:10).
console(config)#ip vrf Customer_A
console(config-vrf-Customer_A)#route-target export 100:10
console(config-vrf-Customer_A)#route-target import 192.168.10.1:10
console(config-vrf-Customer_A)#route-target both 300:10
console(config-vrf-Customer_A)#exit
set extcommunity rt
Use the set extcommunity rt command to set BGP extended community
attributes for the route target. Use the no form of the command to remove
the extended community attributes for the route target.
NOTE: This command is effective only if BGP is running on the router.
Syntax
set extcommunity rt value [additive]
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