From: gah@ugcs.caltech.edu   
      
   Barry Margolin wrote:   
      
   >  thmpsn.m.k@gmail.com wrote:   
   >>I'm confused: Is it possible for the "server" (the TCP that receives   
   >>the first SYN) to send the SYN in a segment and the ACK in another   
   >>segment instead of combining them in a SYN+ACK segment like it is   
   >>usually done?   
      
   > I don't think so.  The diagram showing them separately was just   
   > conceptual.   
      
   Not having actually written a TCP stack, it would seem to   
   be confusing.  The state machine would have to have an   
   additional state, which would otherwise not be needed or   
   used.   If B replied with SYN first and ACK second, then   
   A might try to start a new connection.  (The first connection,   
   not yet being complete, likely wouldn't be in the table   
   of open connections yet.)   
      
   -- glen   
      
   --- SoupGate-Win32 v1.05   
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