Reproducing Network Experiments in a Time-controlled Emulation Environment

Network emulation environments are a valuable research tool that offer the possibility of conducting complex network experiments and can be seen as an enabler of experimental reproducibility. Keen to quantify this approach, we reproduce experiments presented in QJump [1] in the timecontrolled network emulation framework, called SELENA [2]. We first describe in detail how we built the experimental setup. Next, we evaluate the SELENA emulation framework using real world applications, Hadoop MapReduce, memcached and PTPd. We demonstrate our findings, presenting the differences between the results obtained on a hardware testbed and in the emulation environment.