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Old 09-23-2015, 09:18 PM   #1
PedroAmorim
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Netstat -s, TCP Retransmissions counters


Hello,

I'm sending some TCP traffic between two hosts and using netstat -s to see some statistics. I can see that netstat show many kinds of retransmits, like fast retransmit, retransmits in slow start and forward retransmit. I didn't find nothing describing the latter on the internet. What does forward retransmits mean?
Do you have any documentation regarding all TCP retransmissions in Linux?

Thanks in advance!
 
Old 09-24-2015, 10:20 AM   #2
unSpawn
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Quote:
Originally Posted by PedroAmorim View Post
I didn't find nothing describing the latter
Forward RTO-Recovery is in RFC 5682.


Quote:
Originally Posted by PedroAmorim View Post
Do you have any documentation regarding all TCP retransmissions in Linux?
Not standards-wise as in the TCP/IP Suite? Just "in Linux"? I think you want to start reading something like www.tcpipguide.com ...
 
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Old 10-02-2015, 08:49 AM   #3
PedroAmorim
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I'll take a look at this guide later. But, do you have a guide explaining the details of each counter on linux?
 
Old 10-08-2015, 04:27 PM   #4
PedroAmorim
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On netstat -s I can see two counters: segments send out and segments retransmited. Does the segments send out already contains the segments retransmited on its total?

Thanks!
 
  


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