Roles of network federations for bridging multi-generation standard architectures

Towards the future development of global ICT environments, roles of network federation will become increasingly important and complex. Functional gaps between standard network architectures, such as conventional IP-based networks, next generation networks, and future Internet, tends to be remarkable. Architectural migrations from conventional IP to next generation network and to future Internet are analyzed to identify the role and remaining issues of the network federation of different standardized architectures. Possible solutions to network federation are proposed to address migrations to the next generation network and future Internet.