I hope I'm posting this to the correct area, please do let me know if this post would be more appropriate in another area.
We have deployed 3560s with IOS ver 12.2 <25> sec. in our distribution closets and have engaged port security on all of them. We have port security configured to sticky the MACs and to shut down the ports in the event of a violation.
I have three separate incidences, on three separate switches, where three different printers of different manufacturers are intermittently triggering port security.
We're %100 sure that we do not have a case of someone trying to connect an unauthorized device to the port, and the problem occurs at different times of the day.
There are times when the port will error down several times over the course of an hour, and then again we may go a couple of weeks without incident.
I had enabled logging on the switches, but there wasn't any useful information within the logs. They simple indicate that the port went down.
Anyone have a clue as to what may be causing these printers to trigger port security?
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
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