Patent ID: 8634377

Claim:
A method for managing hand-overs of a mobile node among multiple interfaces providing network access to the mobile node, the method comprising: keeping a binding record of the multiple interfaces, the binding record kept by a Foreign Agent associated with the multiple interfaces, the mobile node being associated with an active one of the multiple interfaces and a non-active one of the multiple interfaces; and causing the Foreign Agent to establish a back-up binding for the non-active one of the multiple interfaces in response to a request transmitted from the mobile node, the request being transmitted by the mobile node to the Foreign Agent through the non-active one of the multiple interfaces and the request including a simultaneous binding extension, the simultaneous binding extension indicating (i) whether the associated active interfaces forward traffic intended for the Foreign Agent and (ii) an expiration time for the binding with the Foreign Agent, the back-up binding established in the binding record while the binding record indicates that the mobile node is connected to the active one of the multiple interfaces.