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Webcast-Catalyst9k
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Broadcast Storm

We host an annual LAN gaming event with about 3500 BYOC spots.  Last year we suffered a massive broadcast storm.  So this year we made each row its own subnet to prevent broadcasts from affecting the rest of the LAN.  This had an unintended side effect.  Many people hosting games on their systems were unable to announce their presence to the whole LAN, just their subnet.  It angered quite a few gamers.  What are some options to prevent broadcasts storms but still allow genuine game broadcasts?

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Broadcast Storm

BPDU guard is often used to prevent end systems from introducing switches or hubs that could potenatilly casue a loop (and broadcast storm). Reference.

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