From: Marcus Sundberg <marcus@ingate.com>
To: Patrick McHardy <kaber@trash.net>
Cc: Harald Welte <laforge@netfilter.org>,
Netfilter Development Mailinglist
<netfilter-devel@lists.netfilter.org>,
Pablo Neira <pablo@eurodev.net>, Amin Azez <azez@ufomechanic.net>
Subject: Re: [RFC] alternative to conntrack ID
Date: Sun, 08 May 2005 00:32:26 +0200 [thread overview]
Message-ID: <427D41FA.5080506@ingate.com> (raw)
In-Reply-To: <427D3EAF.3020200@trash.net>
Patrick McHardy wrote:
> Marcus Sundberg wrote:
>
>>You don't even need fast CPUs or networks to risk precision problems
>>- think multiple NICs and SMP.
>
> SMP or multiple NIcs don't matter because at any point in time only
> one instance of a connection can exist. The challenge is to have a
> unique identifier over time.
Yes, having a unique identifier over time was what was being discussed,
and I was merely pointing out that with SMP you can get two conntracks
with identical timestamps even if you have infinite precision, since
two new conntracks can be timestamped simultaneously by different CPUs.
//Marcus
--
---------------------------------------+--------------------------
Marcus Sundberg <marcus@ingate.com> | Firewalls with SIP & NAT
Software Developer, Ingate Systems AB | http://www.ingate.com/
next prev parent reply other threads:[~2005-05-07 22:32 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-27 23:55 [RFC] [PATCH] ctnetlink updates Pablo Neira
2005-04-01 6:59 ` Harald Welte
2005-04-03 18:01 ` Patrick McHardy
2005-04-06 18:08 ` Pablo Neira
2005-04-17 15:07 ` Patrick McHardy
2005-04-29 7:14 ` Jozsef Kadlecsik
2005-04-29 8:02 ` Harald Welte
2005-05-04 9:18 ` [RFC] alternative to conntrack ID Amin Azez
2005-05-04 9:32 ` Patrick Schaaf
2005-05-04 11:30 ` Patrick McHardy
2005-05-04 12:01 ` Amin Azez
2005-05-06 15:16 ` Patrick McHardy
2005-05-07 20:36 ` Marcus Sundberg
2005-05-07 22:18 ` Patrick McHardy
2005-05-07 22:32 ` Marcus Sundberg [this message]
2005-05-09 14:17 ` KOVACS Krisztian
2005-05-09 15:08 ` Amin Azez
2005-05-10 6:49 ` Harald Welte
2005-05-17 16:12 ` Amin Azez
2005-05-17 20:17 ` Patrick McHardy
2005-05-18 7:24 ` Amin Azez
2005-05-18 9:30 ` Jozsef Kadlecsik
2005-06-04 23:52 ` Pablo Neira
2005-06-05 1:02 ` Pablo Neira
2005-06-06 8:48 ` Jozsef Kadlecsik
2005-06-09 12:52 ` Pablo Neira
2005-06-09 13:00 ` Pablo Neira
2005-06-09 13:34 ` Jozsef Kadlecsik
2005-06-10 10:21 ` Pablo Neira
2005-06-13 7:41 ` Jozsef Kadlecsik
2005-06-14 2:30 ` Pablo Neira
2005-06-14 2:42 ` Patrick McHardy
2005-06-15 2:41 ` Pablo Neira
2005-06-20 16:04 ` Amin Azez
2005-06-20 16:12 ` Patrick McHardy
2005-06-22 9:09 ` Amin Azez
2005-06-22 9:30 ` Oscar Mechanic
2005-06-22 17:23 ` Patrick McHardy
2005-07-11 5:41 ` Harald Welte
2005-07-11 7:47 ` Patrick McHardy
2005-07-11 9:50 ` Pablo Neira
2005-06-06 8:17 ` Jozsef Kadlecsik
2005-05-18 6:45 ` Jozsef Kadlecsik
2005-05-18 7:08 ` Amin Azez
2005-05-18 7:17 ` Jozsef Kadlecsik
2005-05-11 8:43 ` Amin Azez
2005-05-01 23:49 ` [RFC] [PATCH] ctnetlink updates Pablo Neira
2005-05-02 10:47 ` Harald Welte
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