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Computer Networks

  • The Assignments/Projects given as a part of Computer Networks course in fifth semester curriculum of Undergraduate Course.
  • This Repository contains simulation based projects of various logical link control layer protocols and actual implementation of some of the Application/Network Layer protocols as well.
  • Each Assignment directory contains respective reports to know more about the particular one.

Brief Overview:

  • Assignment 1: Error detection methods(CRC/VRC/LRC/Checksum) in Data Link Layer simulation.
    • How to simulate?
    • Start server.py then client.py side by side.
  • Assignment 2: Flow Control Methods(Stop&Wait/GoBackN/SelectiveRepeat) in Data Link Layer simulation.
    • How to simulate?
    • Start channel.py then server.py then client.py side by side.
  • Assignment 3: Different CSMA techniques(One/Non/p-persistent) simulation.
    • How to simulate?
    • Create a directory named logs and input, output directories inside it.
    • Run create_inputs.py to create some input files.
    • Create collide.txt with text 0 in logs directory, and log.txt, analysis.txt there itself.
    • Run main.py.
    • You can run the individual one-persistent, p-persistent and non-persistent files to simulate another type of implementation(a rather vague one).
  • Assignment 4: CDMA technique with Walsh Code generation simulation.
    • How to simulate?
    • Create a directory named logs and input, output directories inside it.
    • Run create_inputs.py to create some input files.
    • Create log.txt, analysis.txt in logs directory.
    • Run main.py.
  • Assignment 5: Analysis of packets using Wireshark.
    • How to simulate?
    • No simulation needed.
  • Assignment 6: Simulation of basic networking using Cisco Packet Tracer.
    • How to simulate?
    • No simulation needed.
  • Assignment 7: Implementation of BOOTP and DHCP.
    • How to simulate?
    • Both DHCP and BOOTP: Run main.py with help argument to get idea.
  • Assignment 8: Implementation of FTP, DNS and Telnet.
    • How to simulate?
    • FTP: More info here.
    • DNS: Build with go build ., Run minidns binary, Test with dig example.com @localhost -p1053
    • Telnet: Start server.py then run client.py.