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CS518 Class Project

This project focuses on creating an unlimited queue system for seamless packet acceptance and forwarding from local and external PCs. Leveraging SSH to generate high traffic demand on a Linux system, the performance of a new traffic control algorithm will be tested. Key modifications include adjustments to the `sch_tbf.c` file to prevent packet loss during buffer overflow and implementing an unlimited-size buffer. Challenges include hardware failures, necessitating a refined approach, and utilizing a single computer for testing. Tools like Ntop will track traffic flows effectively.

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CS518 Class Project

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  1. CS518 Class Project Milestone 2 Li Zhang

  2. Original idea and progress • Original idea: 1) Make an unlimited queue which will keep accepting packets generated from local PC and forwarded from other PCs. 2) Design a program to frequently ssh to another PC with linux system to generate a high traffic demand in the network. And test the performance of the new traffic control algorithm. • Modified sch_tbf.c to stop dropping packets when the original buffer is full. The function is tbf_enqueue() • Modified tbf_change(), make an unlimited size buffer

  3. Problem faced and plan modification • Easy to program, hard to test • Hardware failure, very strange! • Plan modification: 1) Use only one computer instead of two 2) Frequently visit www.sohu.com instead of another computer 3) Use Ntop to trace the traffic flows

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