and Practical Use, 2. Berlin: Springer-Verlag. [28] Racloz, P. 1994. Properties of petri nets modellings: The temporal way, 7th International Conference on Formal Description Techniques for Dis- tributed Systems Communications Protocols. © 2009 by Taylor & Francis Group, LLC SIP Handbook: Services, Technologies, and Security [29] CPN tools. The CPN Group, Department of Computer, Science, Uni- versity of Aarhus, Denmark, http://www.daimi.au.dk/designCPN/libs/ commscpn/. [30] Network simulator v.2 SIP Module, patch-ns2_2.26-SIP-SCTP-UDP, http://www.tti.unipa.it/~fasciana/materiale.htm. [31] Begg, L., W. Liu, K. Pawlikowski, S. Perera, and H. Sirisena. 2006. Next generation networks for studying service availability and resilience, Department of Computer Science & Software Engineering University of Canterbury Christchurch, New Zealand, Technical Report. [32] QualNet 3.9.5 Model Library: VoIP, Scalable Network Technologies, Inc., 2006. [33] P2P-SIP websites, http://www.p2psip.org/. [34] PeerSim available at http://peersim.sourceforge.net/. [35] P2PSim available at http://www.pdos.lcs.mit.edu/p2psim/. [36] The P2P File-sharing simulator available at http://www.cs.uiowa.edu/ ~rbriggs/gt/. C 2009 by Taylor & Francis Group, LLC SIP-Based Mobility Management and Its Performance Evaluation Nilanjan Banerjee IBM India Research Lab Kalyan Basu Treveni Systems CONTENTS 17.1 Summary 17.2 Introduction 17.3 Mobility Management 17.4 Protocols 17.5 SIP-Based Mobility Management: A Quantitative Analysis 17.6 Handoff Delay Mitigations 17.7 Summary References 17.1 Summary Session Initiation Protocol (SIP) was originally designed as an Internet Proto- col for establishing and maintaining multimedia sessions. It, however, gained prominence recently as a Voice-over-Internet Protocol (VoIP) signaling proto- col. In addition to its signaling capabilities, SIP can also act as an application layer mobility protocol supporting various flavors of mobility. In this chapter, we first argue in favor of the virtues of SIP in handling mobility in 