Cisco Technology, Inc.

Stmicroelectronics Gmbh

Gale L Shallow

Maynard Darvel Hammond

Benjamin Nelson Darby

Charaf Hanna

Zhifang J Ni

Andrew Graham Whitlow

Glendon Leo Akins, Iii

Jonathan Bradford Evans

John Wrobbel

A method is provided in one example and includes receiving a plurality of packets; identifying whether a particular packet, of the plurality of packets, is part of a sequenced flow; identifying whether a particular sequence number of the particular packet is being received within a time window; identifying whether the particular packet was a next expected packet for a particular flow; and forwarding the particular packet to a next destination. In more particular embodiments, packet inspection is used to set one or more flags for identifying characteristics associated with the plurality of packets. Certain packets in non-sequenced flows are routed directly from an input interface to an output interface of a resequencer module using a flow-through packet path.

Apparatus, system, and method for resequencing packets

A system and method for improved upstream data transmission. In an embodiment, a cable modem includes a transceiver configured for transmitting data upstream once permission is granted. In between times when permission to transmit is granted, however, the cable modem is configured to prepare as much data as possible for immediate upstream transmission once that very permission is granted. Thus, prior to permission being granted, the cable modem assembles (pre-processes) the data into transmit frames such that the data frames may be stored in a local memory coupled to the transceiver in a 'ready-to-go' format. In this manner, the entire amount of time/bandwidth allocated to the cable modem in response to its request for upstream data transmission may be dedicated to actually transmitting data upstream as opposed to consuming time and bandwidth processing the data into data frames after upstream data transmission has been granted.

System and method for improved upstream transmission

A filter in a DOCSIS bridge performs IP Filtering of incoming Ethernet packets in hardware. The filter includes a parser circuit which, in hardware, parses each of the incoming Ethernet packets and then utilizes the parsed information in combination with a content-addressable memory (CAM) that stores filtering information, to filter and route the incoming Ethernet packets. Detailed statistical data may also be generated to provide information on the type of filtering being performed by the DOCSIS bridge.

Hardware implemented ethernet multiple tuple filter system and method

A system and method suited for improved overall data transmission having a hardware-based transceiver configured for transmitting upstream data with suppressed data packets. In TCP sessions between devices, a server seeks an 'acknowledgement' that the downstream data transmission has been received by a client. Some data packets sent upstream may contain only TCP acknowledgement data and therefore may be combined with other purely TCP acknowledgement data packets in order to reduce the impact of the TCP acknowledgement packets on the overall upstream data throughput. In addition, this results in increased TCP performance in the downstream transmission direction as well because the algorithm enables replacing earlier arriving ACK packets with later arriving ACK packets which allows the device to send all TCP ACK information known to the suppressor at the earliest possible time.

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Johns Creek, GA, United States of America

Gale L Shallow