On Performance Evaluation of Various Traffic Combination Based on Network Calculus

Since the early days of the Internet in the 1980s, the end-to-end principle has been one of the building blocks in the transport layer. Two main existing transport layer protocols integrate the transmission control protocol (TCP) and user data gram protocol (UDP). In this paper, we investigate the performance of various network traffic combination from the perspective of transport layer. Firstly, we model the end-to-end transport process and analyze the delivery possibility against the transmission attempts. Then, we deduce the service-curve of the composite TCP and UDP traffic. Further, we simulate the topology taken from our campus network to evaluate the performance of two cases: 1. different traffic amount with the same traffic combination, 2. various traffic combinations under the same traffic flow amount. The simulation results show that UDP take 30%-75% of the network traffic could benefit the throughput performance, which offers an indicator for adjusting the node traffic combination in order to facilitate the total network performance.