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Redirecting network traffic based on content

  • US 9,923,817 B2
  • Filed: 03/09/2017
  • Issued: 03/20/2018
  • Est. Priority Date: 10/07/2013
  • Status: Active Grant
First Claim
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1. An access switch device, comprising:

  • a forwarding table that maps groups of destination addresses to respective outputs of the access switch device;

    a quick lookup table that stores a plurality of entries, each entry of the plurality of entries having a corresponding data stream;

    a flow matching module configured to;

    determine that a packet received at the access switch device corresponds to a data stream that has a corresponding entry in the quick lookup table, wherein the entry includes a label associated with the data stream;

    in response to determining that the data stream corresponding to the packet has a corresponding entry in the quick lookup table, affix the label to the packet; and

    forward the packet to an output port of the access switch device, the output port selected based on the label; and

    a redirect module configured to, in response to the flow matching module determining that a second packet corresponds to a second data stream that does not have a corresponding entry in the quick lookup table, send the second packet to a flow vector server.

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