PLANET XGS3-24042 - Manual (Page 323)

19-169
Usage Guide:
The configured RD is for identifying different VPN each of which shall have a unique RD, VPN
instance implement the space independence and address repeat through RD. But attention should
be paid on that this setting is made up by AS number and a arbitrary number and RD can not be
deleted directly.
Example:
Switch (config)#ip vrf VRF-A
Switch (config-vrf)# rd 300:3
Switch (config-vrf)#
19.1.9 route-target
Command:
route-target {import | export | both} <rt-value>
no route-target {import | export | both} <rt-value>
Function:
Configure the Route-Target of the specific VRF, the no command will delete this configuration.
Parameters:
import: Filter the route to judge whether VPN route join in this VRF.
export: The additional Route-Target when this VRF route is sent to the outside as a VPNv4 route, it
is used to filterthe port.
both: import and export use the same Route-Target value.
<rt-value>: The Route-Target value.
Default:
Not configured.
Command mode:
VRF mode
Usage Guide:
RT is a BGP extended community, is used to filter the VPN route and implement the control of the
VPN member relation of the direct-link site and the route rule. For the configured import rules, after
check the route received by all BGP, add the matched route to BGP and send the route update
message to BGP private network neighbor. For the configured export rules, after check all BGP
route stored by BGP, add a export route-target to these routes and send the route update message
to all public network. If import route-target of other VRF matches with this export route-target, copy
the route to the matched VRF and send the route update to BGP private network neighbor.
Example:
Switch (config)#ip vrf VRF-A