Patent ID: 11870677
Assignee: JUNIPER NETWORKS, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A method comprising:
installing, within a routing table of a leaf switch of an Internet Protocol (IP) fabric of an underlay network of a data center, an underlay network route to a destination address assigned to a virtual router executing on a compute node, wherein the underlay network route being installed within the routing table provides an indicator of the virtual router being reachable by the leaf switch;
determining, by the leaf switch and via a fault detection protocol session established between the leaf switch and the virtual router, that the virtual router is not responding on the fault detection protocol session; and
in response to determining that the virtual router is not responding on the fault detection protocol session, sending, by the leaf switch and toward a spine node that peers with a Software Defined Networking (SDN) controller that manages an overlay network, a route withdrawal message withdrawing the underlay network route to indicate communication failure with the virtual router.