The talk presents an integrated route and user management protocol for Multi-Homed WMNs aiming to preserve active sessions of mobile nodes. Every Mesh Access Point (MAP) has at least one MAP interface configured as a traditional AP and another one dedicated to the WMN backhaul. The clients are mesh-unaware to avoid installing special software on them.

We propose a mechanism based on dynamic IP-within-IP tunnels to pin routes and guarantee the communication between clients and Internet Gateways. MAPs selects the best gateway for each new connection and maintains tunnels for the connection duration to allow the seamless communication during the whole flow life. When a client changes MAP, the old and the new one exchange tunnel information so that the new MAP re-establishes tunnels with the correct gateway ensuring smooth packet delivery.

The protocol is an extension to OLSRD, and is implemented in Linux-based MAPs. Functional and performance results are presented to close the talk. The code is developed in cooperation with INLAB at CSP (http://rd.csp.it/inlab) and is available as Open Source for cooperation and further development.

Host: Edward Knightly

Biography of Renato Lo Cigno:
Prof. Renato Lo Cigno is Associate Professor at the Department of Computer Science and Telecommunications (DISI) of the University of Trento, Italy, where he is one of the founding members of the Networking research group. He received a degree in Electronic Engineering with a specialization in Telecommunications from Politecnico di Torino in 1988, the same institution where he worked until 2002. From 1998 to 2001 he has been several times at the CS department of UCLA, CA, as visiting researcher for a total of more than one year. On the first visit he was supported by CNR grant No.203.15.8, and was awarded a final prize for scientific productivity. In 2001/2002 he was scientific director of INLAB, the Integrated Networking Laboratory of CSP Piemonte, now “NGN Lab” (http://www.csp.it/en/what-we-do/next-generation-networks). Renato Lo Cigno participated in several research projects funded by ESA (TOPSIM development and validation), the EU (Cost 242,247,257, Copernicus ATMIN, IST Helinet, Napoleon, and Discreet (http://ist-discreet.org)) and the Italian Ministry of University and research (MIUR) (MQOS, Planet-IP, EURO, and others). He has been the National Coordinator of the PROFILES project (http://profiles.dit.unitn.it), and he was Coordinator for Trento University in the MIUR TWELVE project (http://twelve.unitn.it). He is involved in the 7-th framework project “Napa-Wine” financed in the first call 1.5 “Networked Media” as coordinator of the Work Package devoted to the P2PTV client study and development. Renato Lo Cigno is member of the IEEE and ACM. Currently he serves in the Editorial Board of Computer Networks (Elsevier) and has been involved as Chair or TPC members of major international conferences in networking. He has co-authored over 120 papers in networking published in refereed international journals and conferences. His interest are in development, design, and performance analysis of networking systems and protocols, with particular attention to changes in communication paradigms from client/server models, to peer-to-peer models, to pervasive/ubiquitous.