Systems and methods for priority-based flow control masking

Details Systems and methods for priority-based flow control masking Systems and methods for priority-based flow control masking

2005-01-11

2005-01-11

Hsu, Alpus H. (Department: 2665)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S389000, C370S418000

Reexamination Certificate

active

06842423

ABSTRACT:
A system provides flow control in a network device. The system includes output queues that correspond to the output ports of the network device, a mask register, a first logic device, and a second logic device. Each of the output queues generates signals relating to the priority levels associated with the corresponding output port when at least a predetermined number of items are stored in the output queue. The mask register generates mask signals relating to the priority levels associated with a particular one of the output ports. The first logic device generates first flow control signals related to the priority levels associated with the particular output port based on the signals from the output queues and the mask signals associated with the priority levels and the particular output port. The second logic device generates a second flow control signal based on the first flow control signals from the first logic device. The second flow control signal may be used to control a flow of packets at the particular output port.

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