Time-driven switching: Difference between revisions

Revision as of 09:40, 4 March 2009

Revision as of 09:45, 4 March 2009

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In [[Telecommunication]] and [[Computer networking]], Time-Driven Switching (TDS) is a node by node time variant implementation of [[Circuit switching]], where the propagating datagram is shorter in space than the distance between source and destination. With TDS it is no longer necessary to own a complete circuit between source and destination, but only the fraction of circuit where the propagating datagram is temporarily located.

TDS adds flexibility and capacity to Circuit Switched networks but requires precise synchronization among nodes and propagating datagrams.

Datagrams are formatted according to schedules that depend on [[Quality of service]] and availability of switching nodes. Respect to [[Circuit switching]] the added time dimension introduces additional complexity to network management. Like [[Circuit switching]], TDS operates without buffers and header processing; therefore an all optical implementation with [[Optical fibers]] and [[Optical Switches]] is possible with low cost. The TDS concept itself pervades and is applicable with advantage to existing data switching technologies, including [[Packet switching]].

TDS has been invented in 2002 by prof. Mario Baldi and prof. Yoram Ofek of Synchrodyne Networks, Inc.