Can I ask why port security did not trip on your MICE extension switch? From: Dean Bahls <dean.bahls@fiberminnesota.com> Sent: Thursday, May 1, 2025 7:18 AM To: Richard Laager <rlaager@micemn.net>; mice-discuss@lists.micemn.net Cc: Andrew Lambertson <andrew.lambertson@fiberminnesota.com> Subject: RE: MICE connectivity issues / elevated multicast traffic Oh man, we were definitely the cause of this. We were troubleshooting a transponder card and put it into loopback without thinking about MICE consequences. We will make sure that doesn’t happen in the future. Please accept our sincere apologies for causing havoc. Dean From: Richard Laager <rlaager@micemn.net <mailto:rlaager@micemn.net> > Sent: Wednesday, April 30, 2025 9:04 PM To: mice-discuss@lists.micemn.net <mailto:mice-discuss@lists.micemn.net> Subject: Re: MICE connectivity issues / elevated multicast traffic It sounds like we had a loop of some kind on the Fiber Minnesota extension switch. It was almost certainly, in some way, related to work they were doing. They are going to investigate further in the morning to try to understand what, specifically, happened. -- Richard Laager Chief Manager, Director Midwest Internet Cooperative Exchange LLC