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Quantized congestion notification (QCN) proxy function in data center bridging capabilities exchange (DCBX) protocol

  • US 9,614,765 B2
  • Filed: 08/26/2014
  • Issued: 04/04/2017
  • Est. Priority Date: 08/26/2014
  • Status: Active Grant
First Claim
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1. An apparatus for providing quantized congestion notification (QCN) proxy functionality to a network device control plane, the apparatus comprising a processor and logic integrated with and/or executable by the processor, the logic being configured to:

  • enable QCN proxy functionality for a particular congestion notification priority value (CNPV) on each edge port of a QCN edge switch, wherein the QCN edge switch comprises one or more edge ports connected to devices outside of a congestion notification domain (CND) that operates on the particular CNPV; and

    forward congestion notification packets received at the QCN edge switch using the QCN proxy functionality when the packets are destined for one of the devices connected outside of the CND that is not QCN-enabled.

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