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Traffic flow classification

  • US 9,426,072 B2
  • Filed: 03/21/2014
  • Issued: 08/23/2016
  • Est. Priority Date: 09/10/2013
  • Status: Active Grant
First Claim
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1. A system for classifying traffic flows comprising:

  • a traffic agent operable to be deployed at an end host within a user space in physical memory independent of a kernel space of the physical memory, the traffic agent running on the end host comprising the physical memory and a processor, the end host communicatively coupled to a data-center network comprising multiple end hosts and an intermediate network device, the traffic agent further operable to utilize a library within the traffic agent to monitor traffic flows originating at the end host;

    a send function provided with the library operable to send at least one frame/packet pertaining to the individual traffic flow from a socket at the end host;

    a collection module within the traffic agent and operable to collect classification information for at least one traffic flow originating at the end host;

    a classification module within the traffic agent and operable to classify an individual traffic flow from the at least one traffic flow as an elephant flow where at least one value of the classification information for the individual traffic flow exceeds a corresponding threshold value for a flow metric; and

    the collection module comprising a portion of the send function operable to copy the classification information from a call to the send function for classification analysis by the classification module.

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