Importance

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Abstract

A network traffic shaper includes a traffic shaper table for storing traffic specifiers, such as permissible data transmission rates, an arithmetic logic unit (ALU), and a high-speed forwarding trigger mechanism having at least one time-searchable data structure or queue and a retrieve time generator that substantially tracks, but never exceeds, a system time. As network messages are received, they are stored at a message buffer and certain message parameters, including message length and a corresponding traffic specifier, are provided to the traffic shaper. The traffic shaper determines when the message may be sent in accordance with the associated traffic specifier and stores this transmission start time along with the message's buffer location in the time-searchable queue of the forwarding trigger. The forwarding trigger continuously examines the transmission start times for previously stored messages. When the transmission start time of a given message matches the retrieve time generator, the forwarding trigger mechanism signals that the message may be sent.

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First Claim