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Locating resources in computer networks

  • US 4,914,571 A
  • Filed: 06/15/1987
  • Issued: 04/03/1990
  • Est. Priority Date: 06/15/1987
  • Status: Expired due to Term
First Claim
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1. In a computer network which includes a plurality of end nodes and at least one server node, each of said nodes having a directory of resources associated with the node and each of said end nodes being associated with a server node, a method of locating a resource in response to a request by a requesting node, said requesting node being either an end node or a server node, said method being performed by computers in the network and comprising the steps of:

  • (a) searching the directory of the requesting node for an entry indicating the requested resource is resident at the requesting node;

    (b) if no such entry is found in the requesting node directory and if the requesting node is an end node, then searching the directory of the server node for the requesting node for any entry indicating the location of the resource; and

    (c) if no such entry is found in the server node directory or of the requesting node is a server node, then searching the directories of end nodes associated with the server node for an entry indicating the resource is resident at one of said end nodes.

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