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Broadcast Suppression

asafayan
Level 4
Level 4

We just experienced considerable network downtime because of a faulty NIC. I am only familiar with broadcast suppression and was hoping that some of you might provide any insights on success/failure that you have experienced with this feature and the Cat 6000 series platform?

1 Reply 1

swpowell
Level 1
Level 1

I have used this feature, and it has helped. I too had a network outage, mine due to a "developer's" platform ARPing the MSFC on the 6000 as fast as it could. The MSFC's CPU went right to 100% and the network slowed to a crawl.

I set the broadcast suppression to 1% on my 100Mbps links to wiring closets. This allows no more than 1Mpbs of broadcast to get through. In one case, this was still more than a small router could handle (millions of frames were filtered), but, the MSFC hasn't had an issue, and that's what was really important.

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