To reserve route targets for specific VPRN services
Purpose
Reserve route targets for a specific VPRN so that no other VPRN services can use the import/export RT.
When you create the associated VPRN service with the customer name that you specify for the RT reservation in Step 3 of this procedure, and the name of the VPRN service matches the Service Name parameter that you specify for the RT reservation in Step 3 , the Route Target Reservation (Edit) form updates with the service ID and the SVC Mgr Service ID of the VPRN.
When you create the associated hub, spoke, or mesh VPRN site or sites, the NFM-P creates the routing policies and community for the sites, and automatically releases and distributes the policies and community to the NEs. The NFM-P assigns the VRF import and export policies to the VPRN site or sites, with the RT values that you are configuring in this RT reservation. The Reserved Route Targets (Edit) form, in Step 4 , updates with the automatically created VRF export and import policies for each hub, spoke, and mesh site.
See To configure VRF import and export policies on a VPRN site for more information about how to configure VRF import and export policies. See NE routing policies in Chapter 27, NE routing and forwarding for more information about routing policies.