In a VPRN interface, each VPN routing instance is isolated from any other VPN routing instance, and from the routing used across the backbone. OSPF can be run with any VPRN, independently of the routing protocols used in other VPRNs, or in the backbone itself. For more information about the OSPF protocol, refer to the 7210 SAS-Mxp, R6, R12, S, Sx, T Routing Protocols Guide.
— config>service>vprn>ospf#