A packet network for BISDN applications

A description is given of a broadband packet network architecture suitable for evolving the existing public switching network into an all-fiber broadband network for integrated voice, data, and video applications. The architecture takes into account the needs for bit-rate flexibility, robustness to service evolution, and interoperability with the existing circuit-switched public network. Key features of the network include internally nonblocking broadband packet switches, integrated network transport, and simplified network-routing algorithms. The feasibility and the benefits of a broadband public network using packet technologies are shown