A Computer Network: Structure and Protocols of the RPCNET

A brief description of the RPCNET architecture is given in the beginning of this manual, then, the protocols and the packet formats of RPCNET are described. More precisely, Chapter 1 deals with a general description of the RPCNET, Chapter 2 deals with the 1st level protocol (Line and Reconfiguration protocols), Chapter 3 deals with the 2nd level protocol (End-to-End protocol), and Chapter 4 deals with User-Level protocols, including the description of RNAM, the generalized Access Method supplied by RPCNET. Appendix A is the hardware scheme of the BSC-modified line connection, Appendix B gives an example of how the reconfiguration protocol works, and finally Appendix C describes the packet formats

Computerized Message Sending and Teleconferencing in an International Environment - Present and Future

Computerized message sending and teleconferencing techniques are presently widely used in an international environment. This paper describes the present status (experience, problems, solutions) of electronic message exchange activities at an international research organization, the International Institute for Applied Systems Analysis (IIASA), and gives a short outline of some of the future prospects in this field

Promotion of East-West Computer Communication in IIASA's International Environment and the Hungarian Case Study

This paper describes the functions of the "IIASA Gateway" as seen by a "typical user", IIASA's Hungarian National Member Organization

Evolution of Computer Networks: Theory and Experience. Proceedings of the Meeting, December 10-12, 1979

The properties of a computer system's architecture can be examined from the point of view of data processing organization, i.e. centralized and distributed organization; utilization mode, i.e. batch and interactive; and communication function, i.e. number and types of protocols, etc. This paper presents a method of system architecture analysis characterized by a model of the user Job Handling Process (JHP). In order to compare the properties of data processing functions and mechanisms in systems with centralized and distributed architectures, JHP and Open Systems Architecture (OSA) models have been used. The typically applicational approach of the JHP model and the layer approach of the OSA model to the analysis of the system architecture permitted the author to propose an additional layer in the OSA mode. This layer defines the interfaces of "job preparation" mechanisms initiated by the open system user

Workshop on Data Communications

With many existing computer networks and many more planned to come into operation, new problems are beginning to appear concerning their inter-connection. On September 15-19. 1975, a Workshop on Data Communications was held at Laxenburg, jointly sponsored by the International Federation for Information Processing (IFIP) and the International Institute for Applied Systems Analysis (IIASA). Participants discussed problems of inter-connecting computer networks, and made suggestions for new standards in this area. This report contains papers presented at the Workshop