1. 69 th IETF, Chicago, IL Performance Evaluation of L3 Transport Protocols for IEEE 802.21 Richard Rouil, Nada Golmie and David Griffith National Institute of Standards and Technology http://www.antd.nist.gov/seamlessandsecure.shtml To view complete set of slides, please visit http://www.antd.nist.gov/seamlessandsecure/seam_contributions.html

2. 69 th IETF, Chicago, IL Motivation The main goals for this study are to evaluate different mechanisms considered for the L3 transport of IEEE 802.21 protocol messages in order to reveal useful insights and performance trends. Performance results based on simulation and analytical models are obtained for the L3 transport of MIH messages using TCP and UDP for different network scenarios and MIH configuration settings.

3. 69 th IETF, Chicago, IL Outline MIH protocol Overview Transaction ID Acknowledgement MIH_NET_SAP Message flow for UDP and TCP Performance results Network scenario UDP evaluation TCP evaluation Example of a realistic handover scenario 802.11 to 802.16 handover Factors for future considerations