Network stack unstable after arp flapping

[Frederique Rijsdijk]

Kip,

Which sysctl are we talking about exactly? Just to be sure..

net.inet.flowtable.enable ?


-- Frederique



On Sun, Apr 03, 2011 at 08:11:33PM +0200, K. Macy wrote:
> I don't think it was properly tested when it was enabled for IPv6.
> Given that I have been absentee it really should not be in the default
> kernel or at least the sysctl should be off. Sorry for the
> inconvenience. Additionally, you don't need to rebuild you can just
> disable the sysctl.
> 
> 
>  -Kip
> On Sunday, April 3, 2011, Frederique Rijsdijk <frederique at isafeelin.org> wrote:
> > Steve,
> >
> > On 01-04-11 16:50, Steve Polyack wrote:
> >> On 04/01/11 10:16, Frederique Rijsdijk wrote:
> > [ .. ]
> >>> Mar 31 18:36:12 srv01 kernel: arp: x.x.x.1 moved from
> >>> 00:00:0c:9f:f0:3d to 00:00:0c:07:ac:3d on bge0
> > [ .. ]
> >>> The result of that, is that loads of FreeBSD machines (6.x, 7.x and
> >>> 8.x) developed serious network issues, mainly being no or slow traffic
> > [ .. ]
> >>> Any ideas anyone?
> >> We experienced a similar issue here, but IIRC only on our 8.x systems
> >> (we don't have any 7.x).  Disabling flowtable cleared everything up
> >> immediately.  You can try that and see if it helps.
> >
> > AFAIK this feature was introduced in 8.x? Btw you are here referring to
> > UDP, we had issues with TCP. It could still be related, perhaps I'll get
> > around emulating the situation and see if I can reproduce it.
> >
> >
> > -- Frederique
> >
> >
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