Date: Thu, 21 Mar 2013 13:49:24 -0500 From: Scott Lambert <lambert@lambertfam.org> To: freebsd-jail@freebsd.org Subject: Re: how to measure bandwidth per jail Message-ID: <20130321184924.GH94452@www.jail.lambertfam.org> In-Reply-To: <514B510F.90702@inbox.im> References: <6C05923E-61FE-46BF-B006-DB078AAAFAA4@inbox.im> <20130321181200.GG94452@www.jail.lambertfam.org> <514B510F.90702@inbox.im>
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On Thu, Mar 21, 2013 at 06:27:27PM +0000, Nicolas de Bari Embriz Garcia Rojas wrote: > Hi, one strange behavior I notice (freeBSD 9.1) is that I don't see the > Obytes per IP only for the bce0 interface, but I do for the cloned > interface lo1: > > here is a link with the output of netstat -ib http://pastebin.com/arrRsM78 > > any ideas ? Most of my jail host IPs are on lo0. Maybe you don't get out accounting if the IP is in the same subnet on the same interface with your gateway? Just a guess. I don't have any insight into how it works. I see the sambe behavior as you for IPs in the subnet with the default gateway, even if specified with: ifconfig <interface> alias ip/32. On the older boxes I have, all of the IPs were defined in the interface's main subnet. I may have been seeing the same behaviour but incorrectly ascribing it to the FreeBSD rev rather than how the IPs were specified. I cannot test it today. > On 03/21/2013 18:12, Scott Lambert wrote: > > On Thu, Mar 21, 2013 at 01:26:13AM +0000, Nicolas de Bari Embriz Garcia Rojas wrote: > >> Hi, any tool, idea or method for measuring the bandwidth consumed per > >> jail ? (or by IP) > >> > >> What about using pflow ( pseudo-device pflow) any advice ? > > I found a thread about this topic yesterday via Google. It was on > > the FreeBSD-ISP@frebbsd.org mailing list sometime in 2005 if I > > remember correctly. > > > > They came up with a few options > > > > netflow, > > > > counting rules in IPFW/pf/ipf > > > > netstat -rni ( which gets you packet counts, > > -rnbi gives you in-bytes and out-bytes) > > > > bandwidthd (in ports I believe) > > > > I suppose ntop could do similar things. > > > > My favorite option was netstat -rnbi | awk '{print $8,$11}' and > > feeding that to MRTG. I have not gotten it implemented yet. > > > > One consideration is that on FreeBSD 8 and older, you don't get out > > traffic per IP address with netstat, as far as I can tell. We're > > moving to FreeBSD 9 pretty quickly anyway. > > -- Scott Lambert KC5MLE Unix SysAdmin lambert@lambertfam.org
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