ISO/IEC ISP 10608 is applicable to end systems concerned with operating in the Open Systems Interconnection (OSI) environment. It specifies a combination of OSI base standards that collectively provide the connectionmode Transport Service using the connectionless-mode Network Service. This part of ISO/IEC ISP 10608 is applicable to the provision of the connection-mode Transport Service in end systems attached to an FDDI LAN subnetwork from which the standardized connectionless-mode Network Service can be made available.