Date: Sat, 29 Nov 2008 20:20:36 -0800 From: Julian Elischer <julian@elischer.org> To: Mykel <Mykel@mWare.ca> Cc: freebsd-net@freebsd.org Subject: Re: Determining counts or size of routing table? (netstat performance?) Message-ID: <49321494.90706@elischer.org> In-Reply-To: <4931A5B6.1060000@mWare.ca> References: <4931A5B6.1060000@mWare.ca>
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Mykel wrote: > Got a few 6.x machines running OpenBGPd with a few BGP full-feeds and a > handful of peers... I'd like to determine the size of the FIB/kernel > routing table. OpenBGPd does not give me this data, and on my > duallie-Xeon 2.8s, it takes quite a while to use netstat & wc to count. > > I'm not looking for exact numbers, just something I can poll via NetSNMP > and plot in cacti... > > I looked though netstat, route, sysctl, vmstat, even pored over an > snmpwalk... can't find anything. > Been asking around, and the only suggestion I've received was to write a > daemon that dumps the table and then monitors the changes, but I'm not a > programmer, nor could I find any tool in ports that might assist in this. > > I'd be happy with almost any metric that gives me some absolute > reference as to how big my routing table is so I can get some nice > pretty graphs done up. Not pounding the system every 60-300 seconds > would be very nice. > > Any suggestions? Or does everyone just pipe netstat? Is there a MIB for > sysctl or NetSNMP I'm missing? > no. It's a hard thing to do so that is why it hasn't been done yet.
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