Method for congestion detection in packet transmission networks

Details Method for congestion detection in packet transmission networks Method for congestion detection in packet transmission networks

2011-03-29

2011-03-29

Yao, Kwang B (Department: 2473)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S235000

Reexamination Certificate

active

07916658

ABSTRACT:
A method for measuring degree of packet congestion on a channel of a packet communication network. The method includes: during a training mode, generating an mathematical relationship between the degree of packet congestion on the channel and a plurality of measurable features of the network over a plurality of network conditions; and, during a subsequent normal operating mode, periodically measuring the plurality of measurable features and applying the generated mathematical relationship to such periodically measured plurality of measurable features to determine actual degree of congestion on the channel; and comparing the actual degree of congestion on the channel with a predetermined channel congestion threshold level. The degree of packet congestion on the channel is saturation level. The measurable features include: time delay between transmission starts and terminations of the previously transmitted packet; the fraction of time the channel is busy; and, average number of packet transmission retries.

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