stop and wait protocol program in c crazy programmer

If you pick a large number, such as 100, you'd have many late timeout, which will cause your transmissions to halt for long periods of time. If you pick a low multiplier such as 1, you'd run into quite a few premature timeouts.

Moreover, you don't even have to use an integer, what's wrong with a multiplier of x2.5?īut what's important is to understand is what would happen with different multipliers. You could use any positive integer, from 1 to basically infinity. This is also bad - we could have identified the lost packet earlier and re-transmitted it.Ĭan it be just any arbitrary integer multiple of the round-trip-timeįirst of all, the answer is yes. If we use a timeout which happens to be higher than the actual RTT, it'll take us longer to identify and re-transmit a lost packet. This is known as a premature timeout, and it's bad - we're re-transmitting a packet even though the transmission was successful. If youre using threads, the entire thread is essentially dead. If we use a timeout which happens to be lower than the actual RTT, we'll timeout before the ack had time to arrive. TCP is a reliable protocol, and it will wait a long, long time before giving up on a connection. Let's consider what happens if we guess wrong. Stop and Wait Protocol Implements in UDP C Socket. An Advanced Socket Communication Tutorial. Move Window Protocol Program in C and C++ - The Crazy Electronics. Python - Sockets Programming - Tutorialspoint. PDF EX.NO:1(a) Implementation of Sliding Window Protocol. OUTPUT: ENTER THE WINDOWS SIZE : 10 SENDER WINDOW IS EXPANDED TO STORE MESSAGE OR WINDOW ENTER THE DATA TO BE SENT: MESSAGE SEND BY THE SENDER: ForgetCode.Ideally, you want the timeout to be equal to the exact time it takes from the moment you've sent a packet, until the moment you receive the acknowledgement from the other party - this pretty much the RTT.īut it's almost impossible to know the exact ideal timeout in advance, so we have to guess. Multi client live server in C - Innovation. In order to end up the transmission, the sender transmits an end of. For every sent frame, the acknowledgment is needed and it takes the same amount of time for propagation in order to get back to the sender. Printf(' WINDOW SIZE OF RECEIVER IS SHRINKED ') Thus the stop-and-wait is one of the flow control protocol which makes the use of flow control service provided by the data link layer. Printf(' MESSAGE RECEIVED BY RECEIVER IS : ') Printf(' ACKNOWLEDGEMENT FROM RECEIVER ') Printf(' WINDOW SIZE OF RECEIVER IS EXPANDED ') Printf(' MESSAGE SEND BY THE SENDER: ') Printf(' ENTER THE DATA TO BE SENT: ') Printf(' SENDER WINDOW IS EXPANDED TO STORE MESSAGE OR WINDOW ')

Stop and wait protocol program in c crazy programmer