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Method and apparatus for permitting intranework testing of internetwork functions

  • US 5,278,823 A
  • Filed: 03/27/1992
  • Issued: 01/11/1994
  • Est. Priority Date: 03/27/1992
  • Status: Expired due to Fees
First Claim
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1. A method for testing a first telecommunications network coupled to a second telecommunications network comprising the steps of:

  • a) originating at a first node in the first network a test query having a gateway node in the first network as at least part of its destination route;

    b) upon said gateway node receiving said test query, generating a loopback query based on said test query, said loopback query having a destination address of a facility node within the first network and an origination address consistent with a query originated by the second network;

    c) routing said loopback query to said facility node;

    d) generating a reply message in response to said facility node receiving said loopback query, said reply message having the gateway node as at least part of its destination route;

    e) upon receipt of said reply message by said gateway node, generating a loopback reply message based on said reply message, said loopback reply message having said first node as at least part of its destination route and an origination address consistent with a reply message originated by the second network;

    f) routing said loopback reply message to said first node;

    g) monitoring for receipt of said loopback message at said first node, receipt of said loopback message providing an indication that said first telecommunications network can process queries from, and generate replies to, the second network.

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