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RELAY SERVER AND RELAY COMMUNICATION SYSTEM

  • US 20080137672A1
  • Filed: 12/10/2007
  • Published: 06/12/2008
  • Est. Priority Date: 12/11/2006
  • Status: Active Grant
First Claim
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1. A relay server which is connected to a LAN and which can communicate with a relay server in a different LAN, the relay server comprising:

  • an account information registering unit that stores information on client terminals connected to the LAN;

    a relay group information registering unit that stores relay group information including information on a group of relay servers permitting accesses to each other;

    a shared resource information registering unit that stores shared resource information including information on resources, state information indicating statuses of the resources, and information on the client terminals sharing the resources;

    a check unit that checks whether the client terminals stored in the account information registering unit can be accessed;

    a relay group information notifying unit that updates the relay group information and transmits a change notification of the relay group information to the relevant relay server, when checking that a client terminal is changed in access status; and

    a shared resource information notifying unit that updates the relevant shared resource information and transmits a change notification of the shared resource information to the relevant client terminal which is stored in the account information registering unit, when receiving the change notification of the relay group information.

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