TCP Echo Client/Server

This project implements a TCP Echo Client and Server in Python using sockets. The goal was to measure Round Trip Time (RTT) and Throughput under different message sizes and server delays. I ran tests locally and across different servers (e.g., csa1, csa2) and plotted performance metrics.

Performance Plots

Localhost: csa1

Client: csa1, Server: csa2

Localhost: csa2

Project Documentation

Key Findings

• RTT remains constant across message sizes but increases linearly with server‐induced delay.
• Throughput increases with message size regardless of delay, as larger payloads amortize the RTT.
• With non‐zero server delay, RTT becomes the dominant bottleneck in perceived performance.
• Cross‐server communication introduces variability, especially in throughput consistency.

Code Samples

Due to course policy, code samples are not available for public sharing.

Technologies Used

• Python (sockets, time module)
• Matplotlib for plotting RTT and Throughput
• Manual testing over csa1 and csa2 environments