My favorite quote from their config guide:


4.2.6. Non-unicast IPv4: IGMP, DHCP, TFTP
On the ISP peering LAN, the only non-unicast traffic that is allowed is the ARP query.
Sometimes we see equipment trying to get a configuration through broadcast TFTP, or configure themselves through DHCP. We will leave it to the reader to consider why this is a bad idea.


On Tue, 2011-11-22 at 14:14 -0600, Andrew Hoyos wrote: 
Can we revisit the whole spanning tree on the IX thing again?

My two cents last time was for 1 mac address per participant facing port, proper storm control limts, bpdufilter, etc.

Also, I'd encourage all participants to review their config's, *especially* if they have layer2 devices in the mix somewhere.
AMS-IX has put together very nice and self-explainatory guides about how to keep your layer2 devices acting nice and not have a negative effect on the entire MICE IX.

That configuration guide is located here: http://www.ams-ix.net/config-guide

--
Andrew Hoyos
hoyosa@gmail.com

On Nov 22, 2011, at 2:06 PM, Eric Crist wrote:

> Judging by the graphs, it was something between Cooperative Net and HE…
>
> ---
> Eric F Crist
> System Administrator
> ClaimLynx, Inc
> (952) 593-5969 x2301
>
>
>
> On Nov 22, 2011, at 13:54:12, James Stahr wrote:
>
>> Anyone else have an issue?  stats.micemn.net show spikes which would likely indicate a spanning tree loop or a broadcast storm.  Whatever the traffic was, it caused a CPU spike and upset all of our other BGP sessions on our ASR as well.
>>
>> -James
>> Berbee/CDW
>>
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