RFC 793:TRANSMISSION CONTROL PROTOCOL
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Front-end


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... computer. Some computer systems will be connected to networks via front-end computers which house the TCP and internet protocol layers, ...
... an interface to the higher level protocols which appears to be implementable even for the front-end case, as long as a suitable host-to-front end protocol is implemented. ...


... TCP do not preclude implementation of the TCP in a front-end processor. However, in such an implementation, a host ...
... processor. However, in such an implementation, a host-to-front-end protocol must provide the functionality to support the type of TCP-user interface ...



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