High performance switching network topologies and frame addressing techniques therefor are disclosed. A two-dimensional Fibre Channel switch fabric is disclosed which combines a Class 1 connection space-division multiplexing sub-fabric, and Class 2 and 3 connectionless space- and time-division multiplexing...http://www.google.de/patents/US20040028038?utm_source=gb-gplus-sharePatent US20040028038 - High performance switching
