Analysis of impact of routing buffer size on TCP variants

When networks are designed, there are several factors which are taken into account for network performance. The buffer size of the routers at bottle neck (core) links in the network plays a vital role in improving the overall performance of the network. An increase in the buffer size may resolve this problem, however, in some networks, where different types of agents are competing for the network resources, the investment made in increasing the buffer size may lead to negative impacts as well. The agenda of this paper is to present a comparative analysis on different TCP variants (in a mixed TCP agent type environment) on the basis of different performance parameters. Conclusions on the optimal queuing buffer size of the network typology being considered are also presented in this paper.