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Data switching device and method of notifying charge information in data switching network

  • US 5,946,670 A
  • Filed: 10/22/1996
  • Issued: 08/31/1999
  • Est. Priority Date: 02/29/1996
  • Status: Expired due to Fees
First Claim
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1. A data switching device comprising:

  • a switch which performs a switch operation on data transferred via the data switching device, said switch forming a permanent link connecting first and second terminals permanently via a network;

    a charge information management unit separate from the terminals, which unit manages charge information concerning a quantity of information transferred between said first and second terminals via the permanent link; and

    a control unit which receives said charge information and sends one of the first and second terminals a notification message including said charge information according to a predetermined sequence.

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