Recently we upgraded our monitoring system to CA Spectrum. Ever since, I get this alarms with the title: "SPANNING TREE HAS CHANGED STATE FROM LEARNING TO FORWARDING"
in our infrastructure we have 2 SW Core (S8 Chassis) and a bunch of access layer switches (B5) connected in a star topology.
All access switches connects back to the core by a pair of 10gb fiber. In addition to that, some upstream switches connects in to the access switches. These upstream switches are all A2 and we used them, in this fashion cause we did not have enough equipment.
Configuration wise, we have all switches spanguarded, adminedge in all edge ports, mack lock in all access ports, Core 1 is the absolute root, Core 2 is the backup, and all the other switches have their priorities set to default.
All the Access switches sees Core 1 as the root port, core 2 as the blocking port and all upstream switches sees Core 1 ass root of the bridge.
Now, what worries me is that NTESIGHT never brought any alarms such as, DEVICE DOWN, NETWORK TOPOLOGY CHANGE even thou it is configures to produce such alarms.
I would like to know if there is anything else that I can do to reinforce my configurations and have a better control over this situation.