PACKET SWITCHING DEVICE, LINE CARD AND SWITCH CARD USED FOR THE SWITCHING DEVICE

摘要

PROBLEM TO BE SOLVED: To prevent a switching loss of data. SOLUTION: This invention relates to the packet switching device comprising at least one line card which has an output port with a control for storage and arrangement of packets in output queues and for generating at least one feedback information unit to inform an arbiter of statuses of the output queues of the output port. The packet switching device also comprises at least one switch card consisting of a crosspoint matrix and the arbiter for controlling the crosspoint matrix.