[38312] in North American Network Operators' Group
Re: 95th Percentile again (was RE: C&W Peering Problem?)
daemon@ATHENA.MIT.EDU (Jim Mercer)
Sun Jun 3 09:57:28 2001
Date: Sun, 3 Jun 2001 09:56:51 -0400
From: Jim Mercer <jim@reptiles.org>
To: Alex Rubenstein <alex@nac.net>
Cc: Joe Abley <jabley@automagic.org>,
"Richard A. Steenbergen" <ras@e-gerbil.net>,
Timothy Brown <tcb@ga.prestige.net>, nanog@merit.edu
Message-ID: <20010603095651.O9538@reptiles.org>
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In-Reply-To: <Pine.WNT.4.33.0106030037360.1596-100000@neon>; from alex@nac.net on Sun, Jun 03, 2001 at 12:40:44AM -0400
Errors-To: owner-nanog-outgoing@merit.edu
On Sun, Jun 03, 2001 at 12:40:44AM -0400, Alex Rubenstein wrote:
> > i gave up on per-customer interface accounting, didn't scale for me.
>
> Thats a very bold statement. A what point (what metric?) did you feel that
> this method didn't scale?
i'm not super-duper, but i'm tier2 and the bulk of my business is wholesale
(the basic service is a connection and transit, nothing else).
most of my customers are ethernet connected, and some customers share
an interface. i got into this before it was cheap to do 802.11q
switching, so my billing system needed to deal with multiple customers
on a single ethernet.
> NAC is no super-duper tier-1 (I had to throw that in), but we do monitor
> >1400 interfaces every 5 minutes, 100 or so at more than 105 mb/s
i don't have near that many interfaces.
however, the rollover issues were starting to become apparent.
fortuneately with the BSD and cache flow stuff, i get 64bit counters.
> > we've since moved to cisco, and, well, now i have cache flow stats which
> > are parsed into customer subnets.
>
> Eeek. Relying on flow-stats? Yikes.
its working for me.
--
[ Jim Mercer jim@reptiles.org +1 416 410-5633 ]
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