AMS-IX problems
Mike Hughes
mike at smashing.net
Wed Oct 23 11:27:12 UTC 2002
On Wed, 23 Oct 2002, Stephen J. Wilcox wrote:
>
> > It's very interesting to see the traffic stats at
> > http://www.ams-ix.net/hugegraph.html Usually, incoming and outgoing
> > traffic is the same. But during this problem, much more traffic went out
> > than came in.
>
> Curious, as the exchange sources no traffic that shouldnt really be possible ;)
>
> (unless the graphs are inaccurate)
If there is something nasty happening with STP, or traffic is flooding,
you will count the same traffic several times - once for each egress port
that it hits - hence aggregate traffic out > traffic in.
Broadcast traffic is also counted multiple times in aggregated stats.
Mike
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