Telecommunications and Networking
Basic concepts
Networks
Distributed data processing
CSS architecture
EDI Concepts
EDI architecture
Basic Communications Model Standards are needed at all Layers User Layer Application Layer Computer (Transport) Layer Transmission Layer
Layering in Major Architectures Basic Model TCP/IP IPX/SPX OSI Application Computer (Transport) Internet Subnet (OSI) Application (7) Presentation (6) Session (5) Transport (4) Network (3): Internet & Data Link (2) Transport: TCP, etc. Complex: SPX, etc. Physical (1)