Packet exchange network and method of controlling discard of pac

Details Packet exchange network and method of controlling discard of pac Packet exchange network and method of controlling discard of pac

1990-12-26

1995-08-22

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 60, H04J 324

Patent

active

054447062

ABSTRACT:
A packet exchange network comprises a plurality of packet exchange nodes connected through trunk lines and terminals connected to the packet exchange nodes each of which is provided a packet storage buffer for storing received packets. When the buffer cannot store every incoming packet due to "traffic congestion," some of the packets are discarded from the buffer by examining and registering the number of relay packet exchange nodes through which the packet passes during the communication at the time of setting a call to start a packet communication and by positively changing a discard rate of packets to be discarded at each relay packet exchange node on the basis of the registered packet exchange node number, so that all the packets have substantially the same discard rate regardless of the relay packet exchange node number.

REFERENCES:
patent: 4475192 (1984-10-01), Fernow et al.
patent: 4799215 (1989-01-01), Suzuki
patent: 4849968 (1989-07-01), Turner
patent: 5007052 (1991-04-01), Flammer
patent: 5079762 (1992-01-01), Tanabe
patent: 5119367 (1992-06-01), Kawakatsu et al.

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