Patent ID: 6141338
Filing Date: 2000-10-31
Classification: H04L,H04M,H04Q

Abstract:
In a system for exchanging data in units of data packets comprising an exchange switch and a plurality of data processing units, coupled to said exchange switch, for sending data packets which have a header added with a logical channel number corresponding to a receiver data processing unit, said exchange switch comprising:a control unit which transfers and receives data packets to and from said data processing units; anda packet switching unit, having a table which has stored therein logical channel numbers each being assigned to one of said data processing units and address information corresponding to said one of data processing units, for receiving said data packets from one of said data processing units through said control unit, for retrieving address information corresponding to a logical channel number appended to each of a plurality of headers of said received data packets from said table, and for sending said data packets to said receiver data processing unit corresponding to said retrieved address information through said control unit;wherein when said one of data processing units sends a registration message, composed of at least one data packet, for registering in said packet switching unit address information corresponding to said one of data processing units, said packet switching unit receives said registration from said one of data processing units and registers said address information in said table.