This part of ISO/IEC ISP 10609 is applicable to end systems concerned with operating in the Open Systems Interconnection(OSI) environment. It specifies a combination of OSI standards, which collectively provide the connection-mode Transport Service using the connection-mode Network Service. This part of ISO/IEC ISP 10609 is applicable to the provision of the connection-mode Transport Service in end systems attached to any type of subnetwork from which the standardized connection-mode Network Service can be made available.
This part of ISO/IEC ISP 10609 specifies the definition of Profiles TC1111/TC1121. The TC1111/TC1121 are profiles in the TC group which uses Transport protocol classes 0 and 2.