Interleaved Multistage Switching Fabrics for Scalable High Performance Routers

As the Internet grows exponentially, scalable high performance routers and switches on backbone are required to provide a large number of ports, higher throughput, lower delay latency and good reliability. At present, most of these routers and switches are implemented on single crossbar as the switched backplane fabric. But the complexity of the single crossbar is increased with O(N2 ) in terms of crosspoint number, which is unacceptable for scalability when N becomes large. A delta class self-routing multistage interconnection network with the complexity of O(N×log2N) has been widely used in the ATM switches. However, the reduction of the crosspoint number results in the serious internal blocking. To solve this problem, quite a few scalable methods have been proposed. One of them, more stages with recirculation architecture is used to reroute the deflected packets, which increase the latency a lot. In this paper, we first bring out the multiple-panel MIN switching fabrics with interl...

• Type: Conference
• Year: 2006
• Where: GLOBECOM
• Authors: Rongsen He, José G. Delgado-Frias
• Keywords: GLOBECOM 2006, Interleaved Recirculation, Multistage Interconnection Network, Single Crossbar, Telecommunications