A distributed routing algorithm in clos networks of variable bit rate TDM switch

摘要

In this paper, a new routing method is proposed in Clos network of variable bit rate TDM switch. This method is dynamic routing method, and it has following two features; (1) In a TDM frame period, all timeslots applied to the switch can reach their destination ports without loss due to internal blocking. (2) Buffer for queuing is not required in switfches of the first stage. Performance of the method is evaluated by software simulation and it is indicated that it can be controlled by commercially available microporcessor in real-time when size of Clos network is within 16x16.