Protocols for Application Communication ; A Top-Down Guide to Osi, Tcp/Ip, and Sna (Mcgraw-Hill Series on Computer Communications)

Designed for applications programmers, software engineers, communications professionals and network managers, this text provides a background to application communications and then fits in the individual protocol suites, including the difficult area of SNA and the widely-used X.25 and OSI CONS. Message handling is explained with reference to the Internet, SNA networks and X.400.