An efficient QoS scheme for mobile hosts

Mobile hosts utilize Mobile IP to retain connectivity, while roaming in various networks, and acquire new IP addresses through the mechanisms that Mobile IP supports. One of today's most demanding application requirements is QoS support. RSVP (resource reservation protocol), the protocol implementation of the IETF integrated services architecture (IntServ), cannot handle hosts that change their IP addresses during a connection lifetime, and thus, must re-establish any given reservation states. To overcome this limitation, we propose the adoption of a mobility management scheme, that maintains a single contact IP address throughout the mobility session. Furthermore, we introduce RSVP mobility proxy, an enhanced RSVP enabled border router to deal with QoS signaling at any mobility related network topology modification.