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Automatic detection of functional defects and performance bottlenecks in network devices

  • US 7,840,841 B2
  • Filed: 09/27/2007
  • Issued: 11/23/2010
  • Est. Priority Date: 09/27/2007
  • Status: Expired due to Fees
First Claim
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1. A method, comprising:

  • providing a pair of interconnected, related network devices, each being operable in a testing operation to function as both a Device Testing Doctor (DTD) and a Device Under Test (DUT), each having a programmable central processing unit (CPU) and a memory operable to receive, store and output testing code;

    storing testing code in each of the respective memories of the two devices, the testing code comprising;

    network device configuration files;

    network traffic pattern files; and

    ,one or more standard-behavior-output template files adapted for detecting network device functional defects and bottlenecks; and

    ,with one of the devices functioning as the DTD and the other device functioning as the DUT in the testing operation;

    loading selected ones of the device configurations from the DTD to the DUT;

    transmitting selected ones of the input traffic patterns from the DTD to the DUT;

    comparing the output of the DUT in response to the input traffic patterns with selected ones of the standard-behavior-output templates; and

    ,detecting a network device defect or bottleneck in the DUT based on the comparison.

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