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Dynamic latency-based rerouting

  • US 9,154,394 B2
  • Filed: 09/28/2010
  • Issued: 10/06/2015
  • Est. Priority Date: 09/28/2010
  • Status: Expired due to Fees
First Claim
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1. A switch, comprising:

  • a latency management module including a processor configured to identify a probe packet from a remote switch identifying latency associated with one of at least two routes between the switch and the remote switch;

    a packet processor adapted to;

    remove the probe packet from a head of a first transmission queue of a first port of the switch, wherein the first port is an egress port associated with a destination device;

    in response to the removal of the probe packet, modify the probe packet by;

    updating a destination identifier of the probe packet with a source identifier of the probe packet; and

    in response to determining that the probe packet is on an outgoing portion of a round trip, updating a value in the probe packet to indicate that the probe packet is on a return portion of the round trip; and

    insert the modified probe packet to a head of a second transmission queue of a second port of the switch, wherein the second port is an egress port associated with the remote switch.

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