TrueTime Network---A Network Simulation Library for Modelica

In English We present the TrueTime Network library for Modelica, developed within the ITEA2 project EUROSYSLIB. It allows for simulation of various network protocols and is intended for use within real-time networking. We describe some its features and discuss implementational issues. Since TrueTime Network is programmed in C, special attention is given to the how Modelica's external function interface is used. We also discuss briefly a future native Modelica implementation.