From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rick Jones <rick.jones2@hp.com>
Subject: Re: [RFC PATCH net-next] tcp: introduce tcp_tw_interval to specifiy
 the time of TIME-WAIT
Date: Thu, 27 Sep 2012 10:02:22 -0700
Message-ID: <5064869E.9060503@hp.com>
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Cc: Neil Horman <nhorman@tuxdriver.com>, netdev@vger.kernel.org,
	"David S. Miller" <davem@davemloft.net>,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	Patrick McHardy <kaber@trash.net>,
	Eric Dumazet <edumazet@google.com>
To: Cong Wang <amwang@redhat.com>
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On 09/27/2012 07:23 AM, Neil Horman wrote:
> The code looks fine, but the idea really doesn't seem like a good plan to me.
> I'm sure HPUX/Solaris/AIX/etc have done this in response to customer demand, but
> that doesn't make it the right solution.

In the case of HP-UX at least, while the rope is indeed there, the 
advice is to not wrap it around one's neck unless one *really* has a 
handle on the environment.  Instead things suggested, in no particular 
order:

*) The aforementioned SO_REUSEADDR to address the "I can't restart the 
server quickly enough." issue

*) Tuning the size of the anonymous/ephemeral port range.

*) Making explicit bind() calls using the entire non-privileged port range

*) Making the connections longer-lived.  Especially if the comms are 
between a fixed set of IP addresses.

rick jones