Head of line blocking
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Jun 28, 2004
filing date -
Jul 8, 1998
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A network switch which includes a plurality of output ports, at least one input port and a queuing manager. Each output port has a control unit associated therewith. The input port receives incoming data destined for various ones of the output ports. The queuing manager directs the incoming data to their destination output ports. Each control unit includes an output queue, a fullness/emptiness sensor and a head of line (HOL) mask. The output queue stores the incoming data destined for its associated output port. The sensor senses when the output queue reaches a fullness or an emptiness state. The HOL mask is connected to the output of the sensor and blocks inflow of the incoming data to the output queue when the sensor senses the fullness state and for enabling inflow when the sensor senses the emptiness state.
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