Welcome to the Computer Network and Security Laboratory

Here is the list of experiments

1. Implement three nodes point to point network with duplex links between them. Set the queue size, vary the bandwidth and find the number of packets dropped.
   • Theory
   • Execution
2. Implement transmission of ping messages/trace route over a network topology consisting of 6 nodes and find the number of packets dropped due to congestion.
   • Theory
3. Implement an Ethernet LAN using n nodes and set multiple traffic nodes and plot congestion window for different source / destination.
   • Theory
4. Implement simple ESS and with transmitting nodes in wire-less LAN by simulation and determine the performance with respect to transmission of packets.
   • Theory
5. Implement and study the performance of GSM on NS2/NS3 (Using MAC layer) or equivalent environment.
   • Theory
6. Implement and study the performance of CDMA on NS2/NS3 (Using stack called Call net) or equivalent environment
   • Theory
7. Write a program for error detecting code using CRCCCITT (16- bits).
   • Theory
   • Execution
8. Write a program to find the shortest path between vertices using bellman-ford algorithm.
   • Theory
9. Using TCP/IP sockets, write a client server program to make the client send the file name and to make the server send back the contents of the requested file if present
   • Theory
   • Execution1
   • Execution2
10. Write a program on datagram socket for client/server to display the messages on client side, typed at the server side.
    • Theory
    • Execution1
    • Execution2
11. Write a program for simple RSA algorithm to encrypt and decrypt the data.
    • Theory
    • Execution
12. Write a program for congestion control using leaky bucket algorithm.
    • Theory
    • Execution

Things to Remember

1. Viva voce questions