Running a total of 8 different PowerConnect switches here. Models: 5424, 5324, 5524.
Topology:
The issue at hand is I'm monitoring for STP changes and there are constant topology changes occurring, maybe 15-20 times a day, but none of the root bridge ID's are changing. They stay the same (NSW001.)
When using show spanning-tree it is showing the number of topology changes increasing but the "last changed occurred" is not. In the below example, this switch has had easily 50 topology changes this week alone.
Example.
Number of topology changes 336969 last change occurred 163:49:06 ago
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15