NETWORK SERVICES AND INTERNETWORKING

摘要

With the rapid introduction of new dedicated telecommunication networks in addition to the existing telephony and telex networks,and with the advent of the ISDN,the number of options for the information transfer via different networks or combinations of networks has increased significantly.Consequently,there is a growing demand for interconnection of similar networks,and also,inevitably,for interconnection of networks of different types.In order to meet this demand various aspects of network interconnection are being studied by standardization bodies such as ISO and CCITT.This paper aims to provide an overview of the progress made so far in the field of standardization,and discusses the ultimate goals that should be reached in order to facilitate the provision of a global infrastructure for transparant transport of information by telecommunication networks.