Patent ID: 7822027
Filing Date: 2010-10-26
Classification: H04L

Abstract:
1. A method, comprising: learning, at a forwarding device that has a plurality of ports and is configured to be disposed within a data forwarding domain having a plurality of subnets, a network address of a host directly connected to one of the ports of the forwarding device; installing a route to the host in a routing table at the forwarding device; propagating, by the forwarding device, a host route for reaching the host via the forwarding device, provided that the network address of the host belongs to one of the subnets of the data forwarding domain; detecting whether the host remains directly connected to the forwarding device; issuing, by the forwarding device, a withdrawal of the host route, if the host is no longer directly connected to one of the ports of the forwarding device; and exchanging all data traffic between the forwarding device and the host at a network layer of a communication protocol stack,