netdev - Re: [PATCH] tcp: fix ICMP-RTO war

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Date:	Wed, 27 Jan 2010 15:56:16 +0200
From:	Denys Fedoryshchenko <denys@...p.net.lb>
To:	"Ilpo Järvinen" <ilpo.jarvinen@...sinki.fi>,
	Netdev <netdev@...r.kernel.org>,
	Damian Lukowski <damian@....rwth-aachen.de>,
	David Miller <davem@...emloft.net>
Subject: Re: [PATCH] tcp: fix ICMP-RTO war

On Wednesday 27 January 2010 14:36:18 you wrote:
> Unless they are for a different connection? We might have to print sk (%p)
> in all those printouts to be sure which maps to which. If a peer becomes
> unreachable, it may well have multiple connections open (this was a
> proxy, iirc?).
> 
Ok i will try to do that today.

Most probably different connections, on this proxy i have 10-15k established 
connections at peak time.

Also about estimating rtt, maybe there is something wrong in idea. Just what 
will happen if ip visible for proxy have multiple people behind? It can be 
small router for hotspot and 10-20 people behind it,  some with very large 
rtt, some with very small. 

And some of them getting disconnected (out of range from wireless, for 
example), and thats most probably why host unreachable sent... at same time 
proxy have established and running tcp connections with other people on same 
router (means for proxy same ip).

Sorry, again to Ilpo Järvinen, by default i have reply, instead of reply all.
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