TCP, UDP, and TFRC in Wired Networks

摘要

Majority of the present applications have characteristics similar to Real Time Applications (RTAs). The applications face congestion where there is a bottleneck link in between source and destination. Different applications have different requirements. Reliability is essential for file transfer and financial transactions, whereas, delay and jitter are essential for streaming audio/video. All layers contribute to congestion control. The transport layer plays a major role in controlling congestion. The congestion problem is addressed by TCP, but is not suitable for majority of the streaming applications. Streaming applications are using UDP which doesn't support congestion control. A new protocol for datagram transport is designed i.e., TCP Friendly Rate Control (TFRC). In this paper performance comparison of transport protocols TCP, UDP, and TFRC is done in wired network.