Chapter 3 Network Architetures and standarts 3 8 COMMUNICATIONS ARCHITECTURES ISo and itu-t developed osi reference model in 1978. OSI-RM: Open Systems Interconnection reference model The standards development process took so long that the osi model never came into widespread use It is the standard reference point by which data communications networks are described network Management and operation www.gxmu.edu.cnNetwork Management and Operation www.gxmu.edu.cn 3.8 COMMUNICATIONS ARCHITECTURES ISO and ITU-T developed OSI reference model in 1978. OSI-RM: Open Systems Interconnection reference model. The standards development process took so long that the osi model never came into widespread use. It is the standard reference point by which data communications networks are described Chapter 3 Network Architetures and Standarts