scope:

This standardized profile applies to end systems concerned with implementing the TCP/IP protocol suite. It specifies a combination of protocols that provide a connectionless or a connection-oriented transport service over a connectionless network service. The subnetwork technology requirements are contained in parts 4 and 5 of this profile.

This profile contains requirements for both a connection-oriented and a connectionless transport service. It also contains requirements for a connectionless network service.

This profile specifies the provision for connectionless or connection-oriented transport service between an end system connected to a subnetwork and another compatible end system through the IP connectionless network service. The interoperable end system may use mutually agreed upon access methods contained within this DSP, or may conform to a mutually agreed upon alternative access methods. An end system is compatible only if the suboptions (e.g., TCP) are compatible. This profile contains the subnetwork independent requirements. A complete transport profile requires knowledge of the subnetwork type, access method, circuit type, and service type.

The layer standards that make up this profile are shown in Figure 1.