From: "David S. Miller" <davem@davemloft.net>
To: Dominik Karall <dominik.karall@gmx.net>
Cc: earny@net4u.de, linux-kernel@vger.kernel.org
Subject: Re: Neighbour table overflow.
Date: Tue, 26 Oct 2004 16:06:42 -0700 [thread overview]
Message-ID: <20041026160642.605f7fd7.davem@davemloft.net> (raw)
In-Reply-To: <200410270011.28818.dominik.karall@gmx.net>
On Wed, 27 Oct 2004 00:11:26 +0200
Dominik Karall <dominik.karall@gmx.net> wrote:
> On Tuesday 26 October 2004 23:52, Ernst Herzberg wrote:
> > On Tuesday 26 October 2004 19:39, Dominik Karall wrote:
> > > can anybody explain why i get thousands of "Neighbour table overflow."
> > > messages? i didn't get such ones with older kernels (~2.6.6).
> >
> > Do you set a default gateway?
>
> yes, default gateway is set to our server.
Do you use a large subnet mask? For example /16 or /8 or
something like that?
If so, you will need to bump up the neighbour table garbage
collection thresholds under /proc/sys/net/ipv4/neight/default/
Specifically gc_thresh1, gc_thresh2, and gc_thresh3
You probably have a huge number of machines on your subnet.
next prev parent reply other threads:[~2004-10-26 23:14 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-26 17:39 Neighbour table overflow Dominik Karall
2004-10-26 21:23 ` Chris Wedgwood
2004-10-26 22:10 ` Dominik Karall
2004-10-26 21:52 ` Ernst Herzberg
2004-10-26 22:11 ` Dominik Karall
2004-10-26 23:06 ` David S. Miller [this message]
2004-10-26 23:58 ` Wichert Akkerman
2004-10-27 0:30 ` Dominik Karall
-- strict thread matches above, loose matches on Subject: below --
2004-10-28 2:25 John Pearson
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