Output details
11 - Computer Science and Informatics
University of St Andrews
A Comparison of TCP Behaviour at High Speeds Using ns-2 and Linux
<05>The network conditions that lead Van Jacobson to formulate TCP’s congestion controls do not generally hold in today’s Internet traffic paths, and this has motivated many of the TCP variants which are now deployed. This paper evaluated five of these variants using Jain’s measure of fairness, comparing them pairwise against the predominant TCP version (New Reno). Both simulation (ns2) and emulation (netem) were used, using the actual deployed Linux kernel code for both, thereby demonstrating a novel and robust methodology for the ongoing assessment of TCP variants while reflecting the subtleties of simulation vs emulation in this critical area.