Abstract
Mobile IPv6 (MIPv6) is a protocol standardized by the Internet Engineering Task Force (IETF) in order to provide mobility support for roaming host systems. A key component within the MIPv6 functionality is the Home Agent (HA), a system at which roaming Mobile Nodes (MNs) register their current point of attachment to the Internet. In order to provide this mobility service to a high number of MNs, multiple HAs are likely to be deployed. However, also for other reasons more HAs might be useful, such as in order to select one close to the MN's location, or to continue the service even if one HA fails.This paper describes the rational for sharing the load between the different HAs. It discusses the requirements for HA load sharing, introduces the components required for this, presents a proposal for a HA load sharing and shows how this interworks with the currently investigated MIPv6 bootstrapping approaches.The paper therefore addresses multiple architectural aspects of the MobiArch 2006 workshop, such as Mobility impact on the Internet architecture, Architectures and protocols for mobility support, as well as Load Sharing.
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