Apparatus and method for virtual output queue feedback

Details Apparatus and method for virtual output queue feedback Apparatus and method for virtual output queue feedback

2007-02-20

2007-02-20

To, Doris H. (Department: 2616)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S416000, C370S418000

Reexamination Certificate

active

10199543

ABSTRACT:
A method of providing virtual output queue feedback to a number of boards coupled with a switch. A number of virtual queues in the switch and/or in the boards are monitored and, in response to one of these queues reaching a threshold occupancy, a feedback signal is provided to one of the boards, the signal directing that board to alter its rate of transmission to another one of the boards. Each board includes a number of virtual output queues, which may be allocated per port and which may be further allocated on a quality of service level basis.

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