How does a tcp server deal with identical messages arriving simultaneously on the same socket?

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How does a tcp server deal with identical messages arriving simultaneously on the same socket?

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Answer 1

Answer #1

Tcp can deal with identical messages arriving on same socket simultaneously by process shown below :

The end point of connection is socket. We can identify socket by 2-touple (IP, Port) .

To identify connection we need 4-touple ( Client IP , Client port , Server IP , Server port ) , so if same messages arrive simultaneously, they will be send by different servers , then server IP will be different and both meesages will be differentiated .

Also in TCP header , there is a column called source port , by this 2 identical messages will be differentiated because they will be send by different machines or ports .

Therefore , Tcp can differentiate between 2 identical messages.

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How does a tcp server deal with identical messages arriving simultaneously on the same socket?

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