To write a python program to perform sliding window protocol
STEP5 : If your frames reach the server it will send ACK signal to client otherwise it will send NACKsignal to client.
import socket
s=socket.socket()
s.bind(('localhost',8000))
s.listen(5)
c,addr=s.accept()
size=int(input("Enter number of frames to send : "))
l=list(range(size))
s=int(input("Enter Window Size : "))
st=0
i=0
while True:
while(i<len(l)):
st+=s
c.send(str(l[i:st]).encode())
ack=c.recv(1024).decode()
if ack:
print(ack)
i+=s
import socket
s=socket.socket()
s.connect(('localhost',8000))
while True:
print(s.recv(1024).decode())
s.send("acknowledgement recived from the server".encode())
Thus, python program to perform stop and wait protocol And Sliding Window Protocol was successfully executed.