common method to count traffic volume on IX

Nick Hilliard nick at
Wed Sep 18 23:38:04 UTC 2013

On 18/09/2013 23:55, Niels Bakker wrote:
> Ding ding ding!  And that's why honest IXPs graph both, to show that they
> have no packet loss on their inter-switch links.

If in > out, it's not necessarily inter-switch packet loss.  The difference
between the two will also include packet loss for same-switch egress
traffic on customer ports.


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