Encyclopedia > X.25

  Article Content

X.25

x.25 is an ITU-T standard protocol suite for the DTE-DCE interface in a packet switched network, approved by ISO. It defines standard physical layer, data link layer and network layers (layers 1 through 3) of the OSI model. It was developed to describe how data passes into and out of public data communications networks. It is connection oriented[?] and has rigorous error correction.

X.25 networks are still in use throughout the world although in decline, being largely supplanted by newer layer 2 technologies such as Frame relay, ISDN and ATM and the ubiquitous layer 3 Internet Protocol.

Document: ISO 8208.

based on FOLDOC



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Olympic medalists in athletics (men)

... (PAN) 1952Lindy Remigino (USA)Herb McKenley[?] (JAM)Emmanuel McDonald Bailey[?] (GBR) 1956Bobby Joe Morrow (USA)Thane Baker[?] (USA)Hector Hogan[?] (AUS) 1960Armin Hary ...