Chapter 3 Network Architetures and standarts IBM SNA(System Network Architecture) IBM: 1974 by the first computer network architecture BM'S SNA is a proprietary architecture NOTE: Not SNA(storage area network) Most network architectures developed since use a layered approach SNA Transacton servce Application Alcains Presentation services Presentaton ata How co Transport SLc额2 Transmission control Path contr Network Data Link control Data link network Management and operation www.gxmu.edu.cnNetwork Management and Operation www.gxmu.edu.cn IBM SNA(System Network Architecture) IBM : 1974 by the first computer network architecture IBM’s SNA is a proprietary architecture NOTE:Not SNA(storage area network) Most network architectures developed since use a layered approach. Chapter 3 Network Architetures and Standarts