nanog mailing list archives
Re: common method to count traffic volume on IX
From: Leo Bicknell <bicknell () ufp org>
Date: Wed, 18 Sep 2013 12:23:12 -0500
On Sep 17, 2013, at 3:15 PM, Niels Bakker <niels=nanog () bakker net> wrote:
I don't know of any IXP that does this. Industry standard is as you and others wrote before: the 5-minute counter difference on all customer-facing ports, publishing both input and output bps and pps. I guess MRTG is to 'blame' for these values more than anything.
Serious question, at an IXP shouldn't IN = OUT nearly perfectly? Most exchanges do everything possible to eliminate broadcast packets, and they don't allow multicast on the unicast VLAN's. So properly behaved you have a bunch of routers speaking unicast to each other. The only way to get a difference is if there is packet loss, IN - loss = OUT. -- Leo Bicknell - bicknell () ufp org - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/
Current thread:
- Re: common method to count traffic volume on IX, (continued)
- Re: common method to count traffic volume on IX Patrick W. Gilmore (Sep 17)
- Re: common method to count traffic volume on IX Nick Hilliard (Sep 17)
- Re: common method to count traffic volume on IX Martin T (Sep 17)
- Re: common method to count traffic volume on IX Patrick W. Gilmore (Sep 17)
- Re: common method to count traffic volume on IX Tom Taylor (Sep 17)
- Re: common method to count traffic volume on IX Michael Hallgren (Sep 17)
- Re: common method to count traffic volume on IX Michael Hallgren (Sep 17)
- Re: common method to count traffic volume on IX Leo Bicknell (Sep 17)
- Re: common method to count traffic volume on IX Peter Kristolaitis (Sep 17)
- Re: common method to count traffic volume on IX Niels Bakker (Sep 17)
- Re: common method to count traffic volume on IX Leo Bicknell (Sep 18)
- Re: common method to count traffic volume on IX Niels Bakker (Sep 18)
- Re: common method to count traffic volume on IX Stephen Fulton (Sep 18)
- Re: common method to count traffic volume on IX Nick Hilliard (Sep 18)
- Re: common method to count traffic volume on IX Niels Bakker (Sep 19)
- Re: common method to count traffic volume on IX Patrick W. Gilmore (Sep 17)
- Re: common method to count traffic volume on IX Nick Hilliard (Sep 18)
- Re: common method to count traffic volume on IX Patrick W. Gilmore (Sep 17)
- Re: common method to count traffic volume on IX Niels Bakker (Sep 18)
- Re: common method to count traffic volume on IX Randy Bush (Sep 18)
- Re: common method to count traffic volume on IX Randy Bush (Sep 18)