Route Optimization in Mobile IPv6 environments addresses one of the major problems of IP based mobility, traffic overhead resulting from packet tunnelling using non-optimal routes. The impact of non optimal routes is even more severe if not only dealing with single mobile hosts but with a combination of mobile hosts and entire mobile networks, as it has been done in the 1ST project OverDRiVE. In this paper, we describe an approach that addresses specifically this kind of multi-mobility scenarios. It provides route optimization between visiting mobile nodes and mobility unaware nodes within a mobile network, even in case the mobile network is currently totally disconnected from any infrastructure. This is a most likely event when looking at vehicular networks in cars or trains. The comparison to other proposals shows thatour solution provides significant improvements to the previous approaches. This is the first approach that works even when the mobile network has no up-link connectivity in the initial phase of the route optimization.In future work, we will enlarge our approach to not onlysupport route optimization for mobile hosts but also fornested mobile networks. Amongst other things, we expectthis to provide a solution for the crossover tunnels issue.Furthermore we are planning to include our approach inthe Motorola LIVSIX IPv6 stack, which was used tobuild the OverDRiVE demonstrator.
Local route optimization for visiting mobile nodes in mobile IPv6 networks
2004
5 Seiten, 6 Bilder, 1 Tabelle, 15 Quellen
Conference paper
English
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