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Network path trace apparatus and network path trace method

  • US 4,947,365 A
  • Filed: 07/21/1988
  • Issued: 08/07/1990
  • Est. Priority Date: 07/23/1987
  • Status: Expired due to Term
First Claim
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1. A path trace apparatus comprising:

  • coupling data storage means for storing data representing a coupling relationship between elements constituting a network;

    input means for inputting data specifying start, middle and end elements of a path to be traced;

    forward trace means for inspecting said data representing said coupling relationship between said middle and end elements in said network to trace the path coupling said middle and end elements in a forward direction in said network, said forward direction being defined as a direction from said middle elements toward said end element;

    reverse trace means for inspecting said data representing said coupling relationship between said middle and start elements in said network to trace the path coupling said middle and start elements in a reverse direction in said network, said reverse direction being defined as a direction from said middle element toward said start element;

    main control means for controlling said forward trace means and said reverse trace means in such a way as to cause said forward trace means to trace the path coupling said middle and end elements, and to cause said reverse trace means to trace the path coupling said middle and start elements; and

    output means for outputting an information representing that said path between said start and end elements is coupled under the control of said main control means.

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