Comparative study of various traffic generator tools

In our paper we have compared the performance of network evaluation tools (PackETH, Ostinato, and D-ITG) over 10Gbps link. The performance of these tools was evaluated in terms of bandwidth utilization over the link. In laboratory setup, two computers with Linux operating systems were connected via 10Gbps crossover cable. TCP and UDP traffic for the payload sizes varying from 64Bytes to 8950bytes was generated by tools and the corresponding throughput was measured. The performance of D-ITG in multithreaded mode is compared with Iperf. For TCP connection Ostinato measured highest bandwidth of 9Gbps while for UDP traffic packETH achieved a throughput of 9.9Gbps. Since D-ITG was not able to achieve such a high throughput we tried to run it in multithread mode for a constant payload size (<;1500 Bytes) and its performance is then compared to Iperf.