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Relay node system and relay control method of the same system

  • US 5,809,078 A
  • Filed: 05/13/1997
  • Issued: 09/15/1998
  • Est. Priority Date: 01/14/1997
  • Status: Expired due to Fees
First Claim
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1. A relay node system, which receives a data stream having a series of data elements transmitted from a transmitting node and which re-outputs the data stream to a receiving node, comprising:

  • data receiving means for receiving said data stream transmitted from said transmitting node;

    storing means for temporarily storing data of said received data stream; and

    data transmitting means for reading said data stored in said storing means to be transmitted to said receiving node,wherein said storing means includes;

    primary buffer means, having a high-speed memory, for temporarily storing data of said data stream;

    secondary buffer means having a memory capacity slower and larger than said primary buffer means; and

    data transfer means for executing a save processing and a restore processing, said save processing including processing for detecting danger of an overflow at an input side of said primary buffer means to transfer data from said primary buffer means to said secondary buffer means by a block unit, and said restore processing including processing transferring data saved to said secondary buffer means to said primary buffer means by a block unit for the data transmission by said data transmitting means.

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