CAN/CSA-ISO/IEC ISP 10609-7-99(R2003)

1. Scope1.1General 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.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 Pr ofiles TD1111/TD1121. The TD1111/TD1121 are profiles in the TD group which uses Transport protocol class 0.1.2Position of Profiles within the Taxonomy ISO/IEC ISP 10609 covers the taxonomy elements identified as ''TB, TC, TD and TE'' in the ''Directory of Profiles and ISPs'' contained in ISO/IEC TR 10000-2. This part of ISO/IEC ISP 10609 specifies the definition of Profiles TD1111/TD1121.These profiles may be combined with any A-profile at the A/T boundary.1.3Scenario Figure 1 illustrates the end system configurations to which TD1111/TD1121 profiles are applicable.This part of ISO/IEC ISP 10609 specifies the required functions from the supporting protocol stack shown in tables 1 and 2.This part of ISO/IEC ISP 10609 does not specify the required functions for relays.