Mobile Network and Applications manuscript No. (will be inserted by the editor) Multihoming Management for Future Networks

Abstract IP multihoming is a networking concept with a deceptively simple definition in theory. In practice, however, multihoming has proved difficult to implement and optimize for. Moreover, it is a concept, which, once adopted in the core Internet architecture, has a sig-nificant impact on operation and maintenance. A triv-ial definition of multihoming would state that an end-node or an end-site has multiple first-hop connections to the network. In this paper, we survey and summarize in a comprehensive manner recent developments in IP multihoming. After introducing the fundamentals, we present the architectural goals and system design prin-ciples for multihoming, and review different approaches. We survey multihoming support at the application, ses-sion, transport, and network layers, covering all recent proposals based on a locator/identifier split approach. We critically evaluate multihoming support in these proposals and detail recent developments with respect to multihoming and mobility management