the core switch our network keeps on getting topology change notification quite often. This happens every-morning. Our core switch is dlink dgs 3627. Earlier I figured out that the the none trunk ports were participating in spanning tree elections. To avoid this I configured all the non trunk ports as the edge ports.
After doing this I still keep on getting topology change on the core switch and all the other switches. The spanning tree priority on the core switch is set to 4096.
I am kind of lost in the mist here. Can anyone punch in some ideas to help me troubleshoot the issue.