The simulation has following 7 sections:

1. Stop and Wait

• Execute the Stop and Wait protocol for 2 packets.
• Use Re-Send to resend the last packet.
• Use Send New to send the next packet.

2. GBN-Sender

• Execute the Go-Back-N protocol for entire window.
• Use Move Window to move sender window position by 1 to right.
• Use Re-Send to resend a specific packet after the timeout.
• Use Send New to send the next packet in the sequence.
• Then click on Submit to validate.

3. 3-Way-Handshake

• Demonstrate the 3-Way-Handshake.
• Send the SYN, SYN+ACK and ACK in appropriate order, and from appropriate user.
• Begin from the Sender.

4. Slow Start

• Execute the Go-Back-N protocol for entire window.
• Use Move Window to move window position by 1 to right.
• Use Send New to send the next packet in sequence.
• Use Extend Window to increase the Sender Window Size by 1.

5. AIMD

• Execute the Additive Increase, Multiplicative Decrease protocol for entire window.
• Use Move Window to move window position by 1 to right.
• Use Send New to send the next packet in sequence.
• Use Re-Send to resend a specific packet after the timeout.
• Use Add 1 to increase the Sender Window Size by 1.
• Use Divide 2 to decrease Window Size by factor of 2.

6. TCP Closure

• Demonstrate the TCP Closure.
• Send the FIN and ACK in appropriate order, and from appropriate user.
• Begin from the Sender.

7. TCP

• Demonstrate the entire Transmission Control Protocol.
  • Step 1: TCP 3-Way Handshake
  • Step 2: Slow Start (Congestion Window Size - 8)
  • Step 3: Additive Increase, Multiplicative Decrease (All remaining packets)
  • Step 4: TCP Closure
• Use Send New to send the next packet in sequence.
• Use Re-Send to resend a specific packet after the timeout.
• Use Move Window to move window position by 1 to right.
• Use Size + 1 to increase the Sender Window Size by 1.
• Use Size ÷ 2 to decrease Window Size by factor of 2.
• Use SYN, FIN and ACK to send those packets during handshake and closure.