EVALUATION OF TCP VARIANTS - 'RENO' AND 'SACK' ON 'REAL TEST BED' USING EMULATOR - 'NISTNET'
Rahul Mehta, Chandresh H. Vithalani, N. N. Jani, Sanjeev Patel · 2011
In increasing heterogeneous networks, reliability is an important issue. It can be assured by providing end to end data delivery by process to process communication. Transport layer in TCP/IP model takes the responsibility using TCP (Transmission Control Protocol) which provides reliability by means of process to process communication and connection oriented acknowledged service. This paper attempts to study and compare revisions done in TCP over a long period of research. Two most important, fully implemented and currently used TCP variant named RENO and SACK are taken into an account. NISTNet is an emulator tool used for the real time packet capturing on real network and performance comparison. The results of the above emulation process show that SACK is performing better compare to RENO in case of high delay and higher percentage of losses. On low delay links and with very less number of losses RENO and SACK perform in almost similar manner.