Mobility management in IP networks providing real-time services

The evolution of IP toward the complete interworking among fixed and mobile hosts is called mobile IP. Several issues related to different aspects of the mobile IP definition have been singled out: impact of mobility on TCP/IP performance, route optimisation, authentication, reliability, location, addressing, etc. An important topic in the IP evolution is the provisioning of real-time services by employing signalling protocols like RSVP. A further step in this evolution will be to allow such real-time communications also between mobile hosts. This issue is addressed and a proposal for extending real-time services also to mobile hosts is presented.