IBM SNA Networking

Systems Network Architecture (SNA), IBM's proprietary networking architecture, has reached a position of prominence in the computer industry based on its completeness and its continued support by IBM. SNA's architecture was a primary basis for the OSI Reference Model, which was created a decade after SNA's introduction. SNA has been expanded to accommodate evolution in computer networking and include support for peer-to-peer networks as well as certain standardized network media and protocols.
Systems Network Architecture (SNA), IBM's proprietary networking architecture, has reached a position of prominence in the computer industry based on its completeness and its continued support by IBM. SNA's architecture was a primary basis for the OSI Reference Model, which was
  • Synchronous Data Link Control (SDLC)
  • High Performance Routing (HPR)
  • Dependent Logical Unit Requester (DLUR)
  • Advanced Peer-to-Peer Networking (APPN)
  • Frame Relay Access Support (FRAS) Boundary Access Node (BAN)
  • Advanced Program-to-Program Communication (APPC)
  • Enterprise Extender (EE)
  • Qualified Logical Link Control (QLLC)

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