James P. Gray
Abstract
SNA is both an architecture and a set of products built in conformance with the architecture (1,2,3). The architecture is layered and precisely defined; it is both evolutionary and cost effective for implementing products. Perhaps the largest component of cost effectiveness is
SNA's DLC and routing protocols have been discussed elsewhere (4,5,6); this talk examines protocols on sessions between logical units (LU-LU session protocols) and illustrates the results of design choices by comparing the performance of various configurations.
- 1 E. H. Sussenguth, "Systems Network Architecture: A Perspective," ICCC 1978 Conference Proceedings, Kyoto, Japan (1978).Google Scholar
- 2 Systems Network Architecture Format and Protocol Reference Manual: Architecture Logic, SC30-3112; available through the local IBM Branch Office. This is a definitive reference for details of SNA.Google Scholar
- 3 Systems Network Architecture: Concepts and Products, GC30-3072; available through the local IBM Branch Office.Google Scholar
- 4 J. P. Gray and T. B. McNeill, "SNA multiple-system networking," IBM Systems Journal 18, No. 2, pp. 263-297, 1979.Google ScholarDigital Library
- 5 R.A. Donnan and J. R. Kersey, "Synchronous data link control: A perspective," IBM Systems Journal 13, No. 2, pp. 140-162, 1974. The requirements for, and benefits of, SDLC.Google ScholarDigital Library
- 6 G. A. Deaton and D. J. Franse, "Analyzing IBM's 3270 Performance Over Satellite Links," Data Communications, October 1980.Google Scholar
Index Terms
- Performance of SNA's LU-LU session protocols
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