In the area of computer network design, the Transport Layer Interface (TLI) was a network API supported by AT&T UNIX System V Release 3 (SVR3) and Release 4 (SVR4). TLI was a double (but in System V) of the Berkeley socket programming interface. TLI was later standardized as XTI , i.e. the X / Open Transport Interface .
Initially, it was expected that OSI would supersede TCP / IP , and thus TLI was designed based on an OSI model- oriented viewpoint, that is, similar to the OSI transport layer. In other words, the TLI looks similar to sockets (in terms of the API).
TLI and XTI have never been widely used as BSD sockets, and although they are still supported on SVR4-derived operating systems , such as Solaris (as well as the "classic" Mac OS in the form of Open Transport ), sockets are accepted as a standard network API.
See also
- Network protocol
- X / Open Portability Guide - POSIX Precursor
- Computer Networking - A Brief Description of the Main Networking Protocols