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BROADCAST FOR A DISTRIBUTED SWITCH NETWORK

  • US 20140351484A1
  • Filed: 05/22/2013
  • Published: 11/27/2014
  • Est. Priority Date: 05/22/2013
  • Status: Active Grant
First Claim
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1. A computer-readable storage memory containing a program that, when executed, performs an operation for broadcasting a command at a first switch module within a distributed switch, comprising:

  • receiving a first request to reset a PCIe link for a first host device, wherein the first host device is connected to a plurality of downstream PCIe devices through the distributed switch;

    identifying a routing table specifying a plurality of downstream switch modules, connected to the first switch module by one or more ports of the first switch module;

    suspending PCIe traffic for the first host device on the one or more ports of the first switch module;

    transmitting a respective broadcast message to each of the plurality of downstream switch modules, specifying a first operation to be performed for resetting the PCIe link for the first host device; and

    upon receiving an acknowledgement message from each of the plurality of downstream switch modules specified in the routing table, resuming PCIe traffic for the first host device on the one or more ports.

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