Self-routing method in fault tolerant large capacity ATM switch and 2n * n multiplex switch

摘要

There has been a problem in that if a problem occurs in one output port of the N N large capacity switch constructed using the conventional 2n n multiplexing switch and the n n output switch,;The ATM switch according to the present invention is designed to solve the above problems. The ATM switch is provided with a fault detection unit for detecting a fault on the input side, a result indicating a result to the switch at the front end, and a fault line from the rear end , A part for preventing the cell from being transmitted to the output port side, and a part for stopping the cell transmission when the number of the cells stored in the buffer in the switch is greater than a certain limit, A 2n n multiplexing switch, and an n n output switch. The large capacity switch capable of multicasting and broadcasting can be constructed by using the failure-tolerant large-capacity switch structure according to the present invention. Also, since the maximum switch capacity that can be implemented in one board is limited, it is possible to easily increase the capacity by using the limited switch capacity, and it is advantageous in that the cell can be transmitted simply and quickly by using the self routing method according to the present invention .