LOGICAL LINE FLOW CONTROL SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a logical line flow control system capable of facilitating a packet flow control for every logical line even in the case of accommodating a plurality of logical lines in one port, reducing the number of physical lines to an L2 backbone and simplifying a device configuration. SOLUTION: This logical line flow control system for performing the flow control for every logical line is provided with a control part 26 for detecting the occurrence of excessive traffic in the logical line and transmitting a specified pause packet instructing the temporary stoppage of packet transmission to the logical line where the traffic is caused to a LAN multiplexer connected by the logical line, a specified pause packet detection part 25 for detecting whether or not a packet transmitted from an opposing device is the specified pause packet on the basis of an attached destination address, and a tag discrimination part 24 for discriminating which logical line is made correspond to the packet. The control part 26 temporarily stops the packet transmission to the discriminated logical line. COPYRIGHT: (C)2003,JPO