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Method and apparatus for diagnosing problems in data communication networks

  • US 4,937,825 A
  • Filed: 06/15/1988
  • Issued: 06/26/1990
  • Est. Priority Date: 06/15/1988
  • Status: Expired due to Fees
First Claim
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1. A method of isolating and diagnosing problem conditions in an identified data communications network link connected to an identified target node, said method comprising steps of:

  • issuing, from a request control node containing it, a generic, non-device-specific problem determination request onto the data communications network, said request being for requesting problem determination to be performed on an identified communication link connected to an identified target node;

    receiving on said data communications network said non-device-specific problem determination request at an intermediate control and translation means and, responsive to said non-device-specific problem determination request, issuing from said intermediate translation and control means at least one device-specific problem determination command on said identified communications link connected both to said intermediate translation and control means and to said identified target node;

    receiving at said intermediate translation and control means on said identified communications link connected to said identified target node, at least one device-specific response from a device on said identified communication link, and;

    responsive to said receipt by said intermediate translation and control means of said device-specific response, issuing by said intermediate translation and control means onto said communications link, further device-specific commands or issuing on said data communications network, general, non-device-specific problem identification diagnostic responses to said generic non-device-specific problem determination request from said request control node.

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