ITU-T X.302-1988 PDF

Scope: This Recommendation is one of a set of Recommendations produced to facilitate consideration of interworking between networks. It is related to Recommendation X.300, which defines the general principles for interworking between public networks, and between public networks and other networks for the provision of data transmission services. Recommendation X.300 indicates in particular combinations of physical equipment can be represented as "subnetworks" for consideration of interworking situations. This Recommendation describes utilities that can be used within a subnetwork and between subnetworks for the provision of data transmission services. Only those utilities are described that are needed for the internal and internetwork operation, and that are not visible to the end users of a call. Facilities that are (also) visible to end users of a call are subject of other Recommendations (e.g. those arrangements described in Recommendation X.301)

ITU-T X.302-1988 history

1988 ITU-T X.302-1988 DESCRIPTION OF THE GENERAL ARRANGEMENTS FOR INTERNAL NETWORK UTILITIES WITHIN A SUBNETWORK AND INTERMEDIATE UTILITIES BETWEEN SUBNETWORKS FOR THE PROVISION OF DATA TRANSMISSION SERVICES