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Network system with a plurality of nodes for administrating communications terminals

  • US 5,450,582 A
  • Filed: 01/19/1995
  • Issued: 09/12/1995
  • Est. Priority Date: 05/15/1991
  • Status: Expired due to Fees
First Claim
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1. A network system comprising:

  • a plurality of nodes, each node including a respective administrating means for administrating at least one communication terminal located in a predetermined region in the network system, wherein said administrating means operates for flexibly changing grouping of communication terminals to be associated with each node in response to establishment, abolishment and replacement of communication terminals;

    each administrating means including a respective communication terminal administration table, each communication terminal administration table including a content common with the communication terminal administration table of the administrating means of each of said plurality of nodes, said respective communication terminal administration table memorizing network addresses of all communication terminals existing in the network system administrated by said administrating means of said plurality of nodes; and

    said administrating means of each node notifying changes of communication addresses relating to establishment, abolishment and replacement of communication terminals administrated thereby to the administrating means of all remaining nodes in the network system, for renewing the respective communication terminal administration table of each of said plurality of nodes in the same manner so as to maintain correspondence of communication terminal administration tables among all the nodes.

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