From: richard -rw- weinberger <richard.weinberger@gmail.com>
To: David Miller <davem@davemloft.net>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: updates to syncookies - timestamps not needed any more (freebsd)
Date: Fri, 12 Jul 2013 08:59:06 +0200 [thread overview]
Message-ID: <CAFLxGvzihGSgNZ5NOJxMN2pgQiCPXgJSRjVCcj3Ncfw3oe_YLA@mail.gmail.com> (raw)
In-Reply-To: <20130712014138.GD12611@order.stressinduktion.org>
On Fri, Jul 12, 2013 at 3:41 AM, Hannes Frederic Sowa
<hannes@stressinduktion.org> wrote:
> On Thu, Jul 11, 2013 at 04:57:26PM -0700, David Miller wrote:
>> From: Hannes Frederic Sowa <hannes@stressinduktion.org>
>> Date: Mon, 8 Jul 2013 18:04:21 +0200
>>
>> > Interesting patch by Andre Opperann of FreeBSD:
>> > <http://lists.freebsd.org/pipermail/freebsd-net/2013-July/035999.html>
>>
>> Interesting work, but outside of the change of hash function I'm not so
>> sure. The whole reason we went to the timestamp field was to eliminate
>> the coarse tables.
>>
>> I understand that he claims that %99.99 of connections are handled by
>> the values he has chosen, but this is still a step backwards in my
>> opinion.
>
> If I understood this thread[0] correctly, it seems Windows 8 might not
> enable TCP timestamps by default? I can not verify, I currently have
> no Windows installations near me. That would mean, linux does, too,
> fall back to an unscaled window connection as soon as syncookies kick in
> (but we would not end up with an unsynchronized window scale option).
My Windows 8 workstations here have it disabled by default.
--
Thanks,
//richard
next prev parent reply other threads:[~2013-07-12 6:59 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-08 16:04 updates to syncookies - timestamps not needed any more (freebsd) Hannes Frederic Sowa
2013-07-08 16:39 ` Eric Dumazet
2013-07-08 18:09 ` Hannes Frederic Sowa
2013-07-11 23:57 ` David Miller
2013-07-12 1:41 ` Hannes Frederic Sowa
2013-07-12 2:25 ` Eric Dumazet
2013-07-12 6:59 ` richard -rw- weinberger [this message]
2013-07-12 15:22 ` Rick Jones
2013-07-12 16:18 ` Eric Dumazet
2013-07-12 16:33 ` Rick Jones
2013-07-12 17:00 ` Eric Dumazet
2013-07-12 7:24 ` David Miller
2013-07-12 8:41 ` Florian Westphal
2013-07-12 14:04 ` Eric Dumazet
2013-07-12 14:25 ` Florian Westphal
2013-07-12 14:32 ` Eric Dumazet
2013-07-12 23:37 ` David Miller
2013-07-26 6:45 ` Hannes Frederic Sowa
2013-07-26 12:56 ` Eric Dumazet
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