Date: Fri, 19 Oct 2007 23:51:07 +0400 From: Ruslan Ermilov <ru@freebsd.org> To: Guy Helmer <ghelmer@palisadesys.com> Cc: freebsd-hackers@freebsd.org Subject: Re: Netgraph ng_bridge status message missing last three values? Message-ID: <20071019195107.GB40442@team.vega.ru> In-Reply-To: <4718C43B.2040504@palisadesys.com> References: <4718C43B.2040504@palisadesys.com>
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On Fri, Oct 19, 2007 at 09:50:35AM -0500, Guy Helmer wrote:
> I'm diagnosing a system that uses the Netgraph ng_bridge node to bridge two
> Ethernet segments and the system seems to stop passing traffic at
> randomly-triggered points (somewhat annoying for a system half a world away
> behind a very restrictive firewall :-)
>
> I've installed a cron job to dump the Netgraph bridge status messages to a
> log file every few minutes. However, I've found that the ng_bridge status
> message looks like this:
>
> > ngctl msg bnet0: getstats 0
> STATS=Rec'd response "getstats" (4) from "[10]:":
> Args: { recvOctets=474229151 recvPackets=3322699 recvMulticast=128640
> recvBroadcast=105813 recvUnknown=2372 xmitOctets=516954216
> xmitPackets=2968420 xmitMulticasts=8 xmitBroadcasts=339 }
>
> but to aid diagnosis I would really like to see several values that,
> according to ng_bridge.h, are in the stats structure, including
> recvRunts, recvInvalid, loopDrops, loopDetects, and memoryFailures. It
> looks like all the code is there to report the values of these variables,
> but I can't seem to find anything that is dropping these variables from
> ngctl's output.
>
Struct members with zero values aren't shown.
Cheers,
--
Ruslan Ermilov
ru@FreeBSD.org
FreeBSD committer
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