High performance real-time applications have become and will continue to be anintegral part of today’s world. With this comes the requirement to provide reliablecommunication networks for these applications requiring real-time guarantees.Depending on the specific application the requirements vary and adapting to allthese requirements is important. Ethernet is a commonly used communication medium in these real-time applicationnetworks because of the advantages it provides with its simplicity, which comesalong with lower cost and higher bit rates. However since Ethernet was notspecifically designed for real-time applications, it has been under constant study inorder provide the required QoS (Quality of Service) requirements for theapplication. In this thesis our aim is to provide a less pessimistic approach to the real-timeanalysis of packet switched networks by the use of knowledge about the offsetintroduced to the packets travelling in the network. Therefore we have taken aspecific application with high real-time requirements, namely a radar application.We are using the available data to simulate and analyze the network’s performanceunder the use of offsets. The analysis is done by calculating some of the commonlyused QoS requirements such as end to end delay, deadline miss ratio and link utilization.