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X.25 and related recommendations in IBM products

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2 Author(s)
Deaton, Jr., G.A. ; IBM Communication Products Division, P.O. Box 12275, Research Triangle Park, North Carolina 27709, USA ; Hippert, Jr., R.O.

This paper describes IBM's use of Recommendation X and related recommendations of the International Telegraph and Telephone Consultative Committee. After reviewing the development history of X and some of the motivations for using it, the paper gives an overview of packet-switched data networks. The reader is then given a brief technical description of Recommendation X and some other recommendations used in conjunction with X. The architectural relationships between X and IBM's Systems Network Architecture (SNA) are described for packet-switched X connections between SNA and non-SNA nodes. Specific elements of Recommendation X used in SNA nodes are defined. After several IBM products that support X and some of the related recommendations are described, IBM's equipment for testing the X interface is discussed.

Note: The Institute of Electrical and Electronics Engineers, Incorporated is distributing this Article with permission of the International Business Machines Corporation (IBM) who is the exclusive owner. The recipient of this Article may not assign, sublicense, lease, rent or otherwise transfer, reproduce, prepare derivative works, publicly display or perform, or distribute the Article.  

Published in:

IBM Systems Journal  (Volume:22 ,  Issue: 1.2 )