netdev - Re: 40k+ outbound connections and bind() problem

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Date:	Wed, 26 Jan 2011 15:23:38 +0200
From:	denys@...p.net.lb
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Daniel Baluta <daniel.baluta@...il.com>, <netdev@...r.kernel.org>
Subject: Re: 40k+ outbound connections and bind() problem

 On Wed, 26 Jan 2011 14:17:14 +0100, Eric Dumazet wrote:
> Le mercredi 26 janvier 2011 à 15:00 +0200, Daniel Baluta a écrit :
>> Hi,
>>
>> > Latest stable, 2.6.37
>>
>> Please apply this patch [1] and see if it's still happening.
>>
>> thanks,
>> Daniel
>>
>> [1] http://www.spinics.net/lists/netdev/msg152204.html
>> -
>
> I dont think it'll help ;)
>
> Denys problem is if one source IP address is used, there is an 
> absolute
> 64K limit to (IP, port) tuple
>
> Only thing you can do is to tune 
> /proc/sys/net/ipv4/ip_local_port_range
> to get close to 64K limit
 No, it is not one ip source.
 As i mention before, i am binding each instance to different IP before 
 connect().
 And when i am having issues and such errors, i am trying httping and 
 binding it to some unused ip, but still getting this error.
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