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Burst server stored switching system and its method

  • US 5,559,797 A
  • Filed: 05/23/1994
  • Issued: 09/24/1996
  • Est. Priority Date: 05/31/1993
  • Status: Expired due to Term
First Claim
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1. A packet transmission method for a packet switching system, said packet switching system having at least one burst server interposed in a path extending between any transmitting terminal and a corresponding receiving terminal, message packets being transmitted through at least one link when said terminals are separated by at least two links, said burst server having a storage capacity adequate to store a received message packet, said system including means for requesting a reservation of free links on a basis of a required bandwidth and a sufficient storage capacity at the receiving burst server, and means for releasing the links after transmission of the message packet is completed;

  • said method comprising;

    performing a packet transmission on a basis of a reservation of a link having a necessary bandwidth through selected links and to a receiving burst server having a sufficient capacity for storing the message packet at the receiving end of said link, the message packet being sent from the transmitting terminal over reserved links to a furthest available burst server;

    storing the receiving message packet at said furthest available burst server;

    releasing the link between the transmitting terminal and the furthest available burst server after completing a transmission of the message packet;

    performing a second packet transmission for transmitting the stored message packet from the furthest available burst server to a next furthest available burst server until the reservation is obtained;

    storing the received message packet at each burst server when the message packet is received;

    repeating said packet transmission for transmitting the stored message packet to the next furthest burst server until the consecutive reservation of free links is obtained and until the message packet is received at the receiving terminal; and

    repeating the release of the link used for transmitting the message packet after completing the transmission of the message packet at each concerned burst server consecutively until the message packet is received at the receiving terminal.

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