Apparatus and method for generating flow control frames in a wor

Details Apparatus and method for generating flow control frames in a wor Apparatus and method for generating flow control frames in a wor

1997-12-18

2000-09-05

Pham, Chi H.

Multiplex communications

Data flow congestion prevention or control

370235, 370413, G01R 3108, H04L 1226

Patent

active

061153567

ABSTRACT:
A network switch in a full-duplex IEEE 802.3 network includes a data monitor module that monitors data utilization between ports. Upon detection of a congestion condition in an output buffer, the data monitor module determines for each of the remaining network switch ports a traffic contribution relative to the total network traffic received by the one congested network switch port. The network switch includes a pause controller that generates pause control frames for the remaining network switch ports, where each pause control frame specifies a corresponding interval having a duration based on the traffic contribution by the corresponding network node. The outputting of a pause control frame to a network node based on the corresponding traffic contribution optimizes elimination of the congestion condition by prioritizing the generation of pause frames for the network node most responsible for creating the congestion condition. In addition, disruption of traffic is minimized in stations having little or no traffic contribution to the congested network switch port.

REFERENCES:
patent: 5768258 (1998-06-01), Van As et al.
patent: 6031821 (2000-02-01), Kalkunte et al.
patent: 6035333 (2000-03-01), Jeffries et al.
patent: 6052376 (2000-04-01), Wills

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