BFTCP : Performance analysis for routing in optical network

Information through optical networks has been extensively studied in recent year to provide high through put, high capacity for the Internet traffic. Among them optical packet switching network deploying buffering, wavelength conversion and multipath routing would be the most suitable one. However due to the packet oriented routing and switching, the network can result in a large amount of packet out-of-order, packet loss and cause various delays in arriving upon end system, causing TCP flows that comprise those packets corrupted. The corrupted flows can increase the business of the Internet traffic and cause malfunction in the higher layer protocol. In this paper a novel method for routing and switching in optical IP networks has been proposed and simulated the performance analysis of the optical flow routing based on the novel approaches. The flow discard (FD) and early flow discard (EFD) approach have been studied extensively to get higher though-put at the receiving end. We have achieved a remarkable improvement by these novel techniques. We have also studied the wave length conversion process in the fixed and variable flow discard and early flow discard for the improvement of the through-put. This technique assures a maximum reduction in packets retransmission, almost similar or uniform delay in the arrival of packets, considerable improvement of good-through out and it reveals that the maximum loss in optical packet routes of about 71.17% in decreased upto 24.95% in optical flow routes.