Over the last decade Internet has grown by orders of magnitude in size. Many of the protocols that were designed several years ago are still in use. It is not clear if the assumptions made in the design of control schemes still hold, particularly when we consider endto-end behavior of paths in the network, today. This paper describes a simple experiment designed to capture end-to-end behavior of the Internet. The measurements indicate that the IP level service provided in the network yields high losses, duplicates and reorderings of packets. In addition, the round-trip transit delay varies significantly. These measurements indicate that the network may have several problems which still need to be analysed in order to improve the efficiency of protocols and control mechanisms that it uses.
Dheeraj Sanghi, Ashok K. Agrawala, Olafur Gudmunds