This paper gives an outline and olutions to the problem of running RSVP signalling in Mobile IP (Mobile Internet Protocol) networks using optimised routing. First, we discuss a basic solution to this problem. By modifying RSVP at mobile and correspondent nodes to become aware of MIPv6 addressing, we provide a simple repair that allows RSVP flows to be established between the fixed network and mobiles. Then, by adding optional objects to RSVP messages, a performance enhancement is proposed to make handovers smooth and seamless. A different technique to enhance performance is called flow extension which provides flows with fixed flow-ids from the correspondent node into the wireless access network at the expense of forwarding traffic inside the access network, whenever the mobile node moves. We conclude that the basic solution is a requirement in order to make MIPv6 and RSVP interoperable. For well performing and uninterrupted operation we strongly recommend one of the performance enhancements that support fast re-establishment or reservation of resource reservations when mobile nodes move.
