On Dec 9, 4:01am, [EMAIL PROTECTED] wrote:
}
} Pls. elaborate your point of view
It is not a "point of view", but rather part of the TCP spec. You
asked what happens to the original piece of data when a duplicate
arrives due to the lose of an acknowledgement packet. The short answer
is that nothing happens to the original piece of data. The duplicate
piece of data is discarded. A critical point the Ole didn't mention is
that another acknowledgement is sent out. Hopefully the sender will
see the (duplicate) acknowledgement, which will cause it to stop
sending the data. If the sender never sees an acknowledgement, for
whatever reasons, it will assume that something has happened to the
connection and will drop the connection. See RFC793 (
http://www.faqs.org/rfcs/rfc793.html ) for all the gory details.
<obRant>
I really wish people would learn to write e-mails properly.
Replies belong at the bottom of the message, so that context can easily
be seen, not at the top! Excess text (greetings, signatures, anything
else not related to the issue) should be snipped. There were three
standard groupstudy signtures plus personal signatures in this
message! That's a lot of waste. And, people shouldn't be using crappy
mail software that fails to distinguish between who wrote what.
</obRant>
} Ole Drews Jensen <[EMAIL PROTECTED]> on 07/18/2000 08:39:06 PM
}
} To: harora, [EMAIL PROTECTED]
}
} The receiver will look at the data and see that it has already received it
} and drop it.
}
} > -----Original Message-----
} > From: [EMAIL PROTECTED] [SMTP:[EMAIL PROTECTED]]
} > Sent: Tuesday, July 18, 2000 8:26 AM
} >
} > Can anyone resolve my problem? My question is as follows:
} >
} > In a TCP connection, there is an acknowledgement between the sender and
} > the
} > reciever. The reciever sends the acknowledgement to the sender after the
} > reception of the packets. The sender recieves the packet and further
} sends
} > the data. Now suppose the reciever's acknowledgement is dropped in
} between
} > i.e. the sender did not recieve any ack. The sender will re-transmit the
} > data. But what will happen to the previous data which has been recieved
} by
} > the reciever. Suppose this happens for a no. of times, then the reciever
} > will have the same data again and again.
}
}-- End of excerpt from [EMAIL PROTECTED]
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