> > 04:30:54.471992 194.100.26.178.1483 > 194.251.244.142.20: FP 35041:36356(1315) ack 
>1 win 32120 (DF)
> 
> Data + fin (total of 1316 bytes of sequence space)
> 
> > 04:30:54.491887 194.251.244.142.20 > 194.100.26.178.1483: . ack 36356 win 8760 
>(DF) [tos 0x8]
> 
> ftp server acks the data but not the FIN
> 
> > 04:32:54.471994 194.100.26.178.1483 > 194.251.244.142.20: FP 35041:36356(1315) ack 
>1 win 32120 (DF)
> 
> We resend


---------> I wanted to know why the tcp resends (retransmits) the 
                   whole segment and not just the FIN even after seeing that
                   the server has acked till 36536.

                   One more thing I want to know is when the linux implementation
                   of TCP 

                                sets the push flag
                                decides to send some data as a segment
                                decides to ack the data it has received

                                                                        thanks
                                                                        gopi
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