Basic HTML version of Foils prepared Dec. 6 98

Foil 42 Systems Network Architecture (2)

From Introduction to Network Protocols Lectures at Xi'an Jaotong University -- Sept 1998. by Roman Markowski
SNA existed prior to and became part of IBM's Systems Application Architecture (SAA) and it is currently part of IBM's Open Blueprint. With the advent of multi-enterprise network computing, the Internet, and the de facto open network architecture of TCP/IP, IBM is finding ways to combine its own SNA within the enterprise with TCP/IP for applications in the larger network.
Two separate architectures
  • SNA - classical, traditional, hierarchical, mainframe-centric
  • APPN- Advanced Peer-to-Peer Networking and Advanced Program-to-Program Computing (APPC)

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