Migrating home agents towards internet-scale mobility deployments

  • Authors:
  • Ryuji Wakikawa;Guillaume Valadon;Jun Murai

  • Affiliations:
  • Keio University, Kanagawa, Japan;The University of Tokyo & LIP6, Tokyo, Japan;Keio University, Kanagawa, Japan

  • Venue:
  • CoNEXT '06 Proceedings of the 2006 ACM CoNEXT conference
  • Year:
  • 2006

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Abstract

While the IETF standardization process of the Mobile IPv6 and Network Mobility (NEMO) protocols is almost complete, their large-scale deployment is not yet possible. With these technologies, in order to hide location changes of the mobile nodes from the rest of the Internet, a specific router called a home agent is used. However, this equipment generates resilience and performance issues such as protocol scalability and longer paths. In order to solve these problems, we describe and analyze a new concept called Home Agent Migration. The main feature of this solution is the distribution of home agents inside the current Internet topology to reduce distances to end-nodes. As is usually done for anycast routing, they advertise the same network prefix from different locations; moreover they also exchange information about their associations with mobile nodes. This produces a Global Mobile eXchange (GMX), an overlay network that efficiently handles data traffic from and to mobile nodes, and operates home agents as would an Internet eXchange Point (IXP). When a correspondent node needs to exchange packets with a mobile node, the data traffic will be intercepted by its closest GMX home agent and redirected to the home agent to which the mobile node is bound.