Method of and system for monitoring packet rate in packet networ

Details Method of and system for monitoring packet rate in packet networ Method of and system for monitoring packet rate in packet networ

1992-04-08

1994-05-31

Chin, Wellington

Multiplex communications

Wide area network

Packet switching

370 60, 370 941, H04J 314, H04L 1256, H04L 1226

Patent

active

053175638

ABSTRACT:
In a packet communication network in which a plurality of subscriber's lines are connected with a packet switching unit via a multiplexer and each of terminal units declares the packet rate on call request, a packet rate monitoring circuit is provided between the packet switching unit and the multiplexer. The packet rate monitoring circuit includes a circuit for monitoring the cell arrival rate, a circuit for detecting a packet cell violating the declared value which is transmitted from the terminal, a circuit for adding a mark representative of the violation cell to the violation packet which is detected by the detecting circuit, and a circuit for automatically modifying the declared parameter. The modifying circuit applies the declare parameter which was automatically modified in accordance with utilization condition (the number of multiplexings and the line utilization) of the multiplexer disposed between the subscriber's terminals and the rate monitoring circuit so that the detecting circuit detects the violation packets based upon the modified declared parameter.

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