In candidate selection to select the queue issuing the connection request
to a certain output port out of a plurality of logic queues provided in an
input buffer section of an input buffer type ATM switching system to store
cells for each output port and each connection, whether a logic queue
holds cells in predetermined order is checked, and the logic queue located
next to the queue to which gained the right to connect to an output port
last time is taken as a start point of the rotation priority control to
select the logic queue holding the cell searched first.
