STP Leak using Broadcast packet 01:80:c2:00:00:1c

Hi

Thank you for your messages. Please understand that the Community would really need, at very least, the Model Number of the switch presenting the issue. I'm sure this would trigger faster response rate.

But yes, to answer your questions, several key people in NETGEAR Community as well as several NETGEAR employees at Tech Support, Engineering Q&A and PLM heard about this new issue.

I am not sure which switches you have, but in case these are Smart Managed Switches (GS1xxTxx, GS5xxTxx, GS7xxTxx, XS7xxTxx) or above, please use the solution provided in this thread. Please enable Storm Control first. If not sufficient, you can use a MAC Access Control List (ACL) to drop packets with a target hardware address of 01:80:c2:00:00:1c. You can attach this ACL to your ports and your LAGs between your switches.

Please let us know how it goes, while we are investigating on our side.

Regards,

We have hundreds of Netgear switches and hundreds of UniFi APs under management at various sites.  We're only having this problem with one GSM7224 (not listed in the pulldown above).  It is not stacked. We have another identical switch in another building at this site and it is not exhibiting the issue.  I found that the good one was running 8.0.1.26 firmware while the broken on was at 8.0.1.36.  Downgrading to the older firmware on that switch did not resolve the issue however.  We've implemented the temp fix as recommended here and are wating for something permanent.