XPost: comp.os.linux.networking   
   From: rjk@greenend.org.uk   
      
   Mark Hobley  writes:   
   > On Sat, 21 May 2011 14:58:32 +0000, Mark Hobley wrote:   
      
   >> 18: Flags [S.], seq 3385954279, ack 3902988975, win 5792, options [mss   
   >> 1380,sackOK,TS val 140346418 ecr 47079743,nop,wscale 7], length 0   
   >   
   > I'm not sure what this first line is, but win 5792 is bigger than any   
   > datagram that my ISP can carry.   
   >   
   >> 03:40:48.745614 IP venus.markhobley.yi.org.52196 >   
   >> news.eternal-september.org.nntp: Flags [S], seq 185692436, win 14600,   
   >> options [mss 1460,sackOK,TS val 47088682 ecr 0,nop,wscale 5], length 0   
   >   
   > The value of win 14600 here is presumably the number of bytes of data   
   > that venus is prepared to receive in a single instance. Is that right?   
   > Presumably that is just data, and excludes headers. Is that right? It   
   > is bigger than any datagram that my ISP can carry. Does it have any   
   > effect on datagram sizes?   
      
   Yes, it's the number of bytes the sender is able to accept.  It's not   
   connected to packet sizes.   
      
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   http://www.greenend.org.uk/rjk/   
      
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