From: sangitachowdhary@gmail.com   
      
   On Thursday, December 12, 2013 11:43:55 PM UTC+5:30, Rick Jones wrote:   
   > sangeeta chowdhary  wrote:   
   >   
   > > I have one question related to TCP keepalive timer. If keepalive   
   >   
   > > timer expires, then we send a probe packet, and client respond with   
   >   
   > > ack. I want to know where this ACK is processed.   
   >   
   >   
   >   
   > Somewhere in the TCP code - where exactly will depend on the specific   
   >   
   > stack (Linux, BSD, HP-UX, AIX, Solaris, etc etc).   
      
   Somewhere means where in Linux, I tried to find in tcp_ack(), but I didn't see   
   anything related to Keepalive Probe packet ACK.   
      
   >   
   >   
   >   
   > > When we get ack for probe packet, we reset the timer. Where   
   >   
   > > resetting of timer has been done?   
   >   
   >   
   >   
   > Same as above.   
   >   
   >   
   >   
   > > When we get ACK for probe packet, do we increase the congestion window?   
   >   
   > > Looking forward to your response.   
   >   
   >   
   >   
   > The keepalive probe is not actual (current) data.   
   >   
   >   
   >   
   > rick jones   
   >   
   > --   
   >   
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   >   
   > these opinions are mine, all mine; HP might not want them anyway... :)   
   >   
   > feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH...   
      
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