Patent ID: 7623535

Claim:
A method of providing dynamic routing support for Half-Duplex Virtual Routing and Forwarding (HDVRF) environments comprising: configuring a forwarding Virtual Routing and Forwarding (VRF) table for a spoke router in a hub and spoke environment, said forwarding VRF table including information received from the hub, said forwarding VRF table used to forward incoming packets to a central location within the hub and spoke environment; populating a routing VRF table for said spoke router, said routing VRF table populated with routing information received from the hub and from ingress interfaces of said spoke router; propagating the routing information learned from ingress interfaces of said spoke router to the hub; and forwarding packets received on at least one ingress interface of said plurality of ingress interfaces of said spoke router according to said forwarding VRF table; wherein: the spoke router is a provider edge (PE) router and the ingress interfaces are respective interfaces to first and second customer edge (CE) routers, the CE routers being spoke routers of a customer network; the routing information learned from the ingress interfaces includes respective routing entries for network nodes reachable via the first and second CE routers; and the packets received on the at least one ingress interface are packets from the first CE router being sent to another node of the customer network reachable via the second CE router.