Apparatus and methods for scheduling packets in a broadband data stream

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7697430
APP PUB NO 20090086628A1
SERIAL NO

11215606

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A packet scheduler includes a packet manager interface, a policer, a congestion manager, a scheduler, and a virtual output queue (VOQ) handler. The policer assigns a priority to each packet. Depending on congestion levels, the congestion manager determines whether to send a packet based on the packet's priority assigned by the policer. The scheduler schedules packets in accordance with configured rates for virtual connections and group shapers. A scheduled packet is queued at a virtual output queue (VOQ) by the VOQ handler. In one embodiment, the VOQ handler sends signals to a packet manager (through the packet manager interface) to instruct the packet manager to transmit packets in a scheduled order.

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Patent Owner(s)

  • TELLABS OPERATIONS, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bowles, Murray Santa Clara, US 2 87
Curry, David San Jose, US 18 172
Gracon, Glenn Palo Alto, US 5 130
Hsu, Kenneth C San Jose, US 24 183

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