Local Area Transport Architecture

This document details the Local Area Transport (LAT) architecture, a low-level communication protocol designed for Ethernet local area networks to facilitate data exchange between terminal servers and host operating systems. The specification covers the architectural model, directory services, message formats, and layer interfaces, emphasizing simplicity and efficiency in terminal-to-host connectivity. It includes state diagrams and specific logic for message handling, flow control, and various service classes, such as interactive terminals and application terminals.