System for communicating with network having first operating system in charge of upper communication layers and second operating system in charge of lower communication layers

Claim 1

A communication system for communicating (SCI) with a network having a plurality of terminals connected thereto, said system (RE) including a computer (HOST) associated by a bus (PSB) with a communication processor (NCC), said communication processor being linked to a specific link of the network, the computer including a first operating system (SE 1 ) in charge of upper communication layers and associated with a plurality of applications (A i , B i ) which exchange data with the terminals and a first input/output manager (GES 1 ) which organizes within the bus a transfer of the data to a second input/output manager (GES 2 ) of the processor (NCC), said processor (NCC) including a second operating system (GPOS) in charge of lower communication layers and which organizes the operation of the processor (NCC) in order to transmit the data from the bus to the network and vice versa, said system comprising: a telecommunication server (NCCD) associated with the first operating system (SE 3 ) operable to provide transport services to session layers managed by said computer and to handle transport layers between said computer and said communication processor, and a communication code (CC) including lower communication layers from the transport layer, wherein the telecommunication server includes means for enabling the first operating system to access various layers of the communication code (CC), the communication code implementing a component and specific protocols of the component for each of the layers of the communication code, in order to assure transmission to the host or to the network.