A concurrent migration extension to an end-to-end host mobility architecture

With the proliferation of mobile devices and the emergence of the internet as a global communication and business medium, there is significant interest in providing robust, high-performance, internet connectivity to protable devices. This requires seamless delivery of data between the peers even as they change location. The accepted solution for mobility is Mobile IP, an IETF standard supporting mobility in the network layer. Recently, Snoren and Balakrishnan suggested an end-to-end implementation that uses dynamic DNS updates and transport layer connection migration to implement seamless mobility. This approach has several advantages and it is conceivable that it will replace (or co-exist) with Mobile IP to implement mobility. One of the restrictions in the proposed implementation is that it does not support the case where both peers can migrate. In this note, we propose an extension to the end-to-end implementation to allow concurrent peer migration.