Transport Driver Interface
When user-mode binaries are created by compiling and linking, an entity called a TDI client is linked into the binary. TDI clients are provided with the compiler. The user-mode binary uses the user-mode API of whatever network protocol is being used, which in turn causes the TDI client to emit TDI commands into the Transport Provider.
Typical TDI commands are TDI_SEND, TDI_CONNECT, TDI_RECEIVE.
The purpose of the Transport Driver Interface is to provide an abstraction layer, permitting simplification of the TDI clients.
- Windows XP Driver Development Kit documentation.