new architecture for interconnection of broadband LANs

A new topology is proposed that is regular in structure and allows broadband Local Area Networks to be connected together to support a large number of users. The topology is based on connecting local area networks in cube fashion and allows for systematic growth as the need arises. These cubes are attached to each other as building blocks by adding cubes evenly in all three dimensions. In an operational network, irregularities occur due to failures at gateways. An addressing scheme and an automatic routing algorithm are developed that makes it possible to add new users without affecting the addresses of existing nodes. The capacity of the proposed networking architecture is determined and compares favorably to that of hypercube interconnected LANs when the number of rings in the network is small.