A resource reservation mechanism for mobile nodes in the Internet

This paper addresses the problem of resource reservation at the network layer for mobile nodes, and proposes a simple and scalable scheme that allocates resources to an ongoing data flow of a mobile node in all the neighboring subnets. The resource reservation setup and maintenance are achieved through two simple protocols, viz, the Neighbor Mobility Agent Discovery Protocol (NMADP), and the Mobile Reservation Update Protocol (MRUP). These protocols can be easily incorporated into the current Internet routing mechanisms such as the Open Shortest Path First protocol (OSPF) and Mobile IP. Since the scope of our reservation protocols is restricted to leaf subnet they are also adaptable with both Intserv and Diffserv architectures of the Internet. With Intserv, our protocols can work with Mobile RSVP, by providing the list of foreign agents so that passive reservations can be setup. Whereas, for Diffserv, the reservation is made by the NMADP and MRUP protocols