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List:       freebsd-hackers
Subject:    Re: Netgraph ng_bridge status message missing last three values?
From:       Ruslan Ermilov <ru () freebsd ! org>
Date:       2007-10-19 19:51:07
Message-ID: 20071019195107.GB40442 () team ! vega ! ru
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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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