XPost: alt.comp.os.windows-11   
   From: robin_listas@es.invalid   
      
   On 2025-09-09 12:54, Daniel70 wrote:   
   > On 9/09/2025 1:20 am, R.Wieser wrote:   
   >> Daniel,   
   >>   
   >>>>> But how does the distant end know when I have received the entire file   
   >>>>> (i.e. Download end time)??   
   >>   
   >> As said, the sending-side marks the last to-be-send data-block as   
   >> being ...   
   >> well, the last block.  :-)   
   >>   
   >>>>> Similarly, how does the distant end know when my computer started the   
   >>>>> Upload (Upload start time)??   
   >>   
   >> By receiving the first block of data ?   
   >>   
   >> Mind you, files do *not* get send as a single block, but as a number of   
   >> smaller blocks.   
   >>   
   >> Regards,   
   >> Rudy Wieser   
   >>   
   >>   
   > Yes, understood, Rudy, don't start sending second Block until reception   
   > of first block acknowledged.   
      
   Hum. Maybe not. I did not study TCP in that detail, but older protocols   
   would send a number of blocks, say 1, 2, 3, 4 & 5 and start receiving   
   the ACKs after number 3. The receiver says OK to number 1, fail number   
   2, Ok number 3... so after a while, out of sequence, the sender repeats   
   number 2, just after sending number 6.   
      
   --   
   Cheers, Carlos.   
   ES🇪🇸, EU🇪🇺;   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)