Intelligent fabric congestion detection apparatus and method

Details Intelligent fabric congestion detection apparatus and method Intelligent fabric congestion detection apparatus and method

2005-10-27

2010-11-09

Nguyen, Steven H (Department: 2473)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S230000

Reexamination Certificate

active

07830801

ABSTRACT:
An intelligent fabric congestion control apparatus and method are provided to receive data packets from source endpoints and output the data packets to destination endpoints. The apparatus and method include a counter, a timer, and a controller. The counter increments from a preset value when a data packet is received at an egress queue and decrements when the data packet is output from the egress queue. The timer starts timing in response to the incrementing of the counter from the preset value. The controller performs one of resetting the timer when the counter is decremented to the preset value prior to the timer reaching a first threshold, and detecting a persistent congestion when the timer reaches the first threshold.

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