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System and method of network diagnosis

  • US 9,699,056 B2
  • Filed: 12/30/2013
  • Issued: 07/04/2017
  • Est. Priority Date: 02/04/2008
  • Status: Expired due to Fees
First Claim
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1. A system for network diagnosis, comprising:

  • a media library coupled to a network, the media library comprising a drive, a library controller and a plurality of media;

    an infusion node coupled to the network, wherein there is a portion of the network between the infusion node and the drive, the infusion node configured to infuse control data into the network at an infused data transfer rate, wherein infusing control data into the network comprises sending commands to the drive to write corresponding data to the drive; and

    a monitoring appliance coupled to the network and configured to;

    when the control data is being transferred at the drive, send a first command to the drive over the network and send a second command to the drive over the network to collect data generated by the drive;

    receive a first response from the drive specifying a first amount of data and a second response from the drive specifying a second amount of data; and

    determine a measure of network performance for the portion of the network between the infusion node and the drive based on the first response and the second response.

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