Systems and methods for flow control and quality of service

Details Systems and methods for flow control and quality of service Systems and methods for flow control and quality of service

2011-05-03

2011-05-03

Harper, Kevin C (Department: 2462)

Multiplex communications

Data flow congestion prevention or control

Reexamination Certificate

active

07936669

ABSTRACT:
Various embodiments of methods and systems for pausing and shaping data flow while supporting both parameterized and prioritized Quality of Service are disclosed. In some embodiments, a system for pausing and shaping data flow comprises an input buffer, a first pause controller coupled to the input buffer and an output buffer for flow control messages. Various embodiments also include a hop-1 buffer coupled to the input buffer and a hop-2 buffer comprising a plurality of queues coupled to the hop-1 buffer. Additionally, in some embodiments, a second pause controller is coupled to the queues. The second pause controller selects a queue or queues that will cause a pause to be generated based on a predetermined condition. A two-hop process controller controls the data packet flow from the input buffer to the hop-1 buffer and from the hop-1 buffer to the hop-2 queues based on packet classification.

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