[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
common method to count traffic volume on IX
* bicknell at ufp.org (Leo Bicknell) [Wed 18 Sep 2013, 19:23 CEST]:
>On Sep 17, 2013, at 3:15 PM, Niels Bakker <niels=nanog at 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?
Ding ding ding! And that's why honest IXPs graph both, to show that
they have no packet loss on their inter-switch links.
(Or, much more likely, measurement errors due to wrong config for the
grapher)
-- Niels.