Patent ID: 7564801
Filing Date: 2009-07-21
Classification: H04L,H04W

Abstract:
1. A method of a host soliciting routers, the method comprising the steps of: transmitting a router solicitation message including information identifying a current router; responsive to the router solicitation message being received by the router identified in the solicitation message as the current router, waiting, by the current router, a first delay period and sending a router advertisement message; responsive to the router solicitation message being received by routers other than the router identified in the solicitation message, as the current router, waiting at least a second delay period, longer than the first delay period, and sending, by each of the routers other than the current router, another router advertisement message if a router advertisement message is not previously received such that the current router remains configured as the operational router if the received router advertisement message is from the current router and a new router is configured as the operational router if the received router advertisement message is not from the current router.