High Rate of STP topology changes

[MangoIT]

I am seeing daily occurrences of "High Rate STP topology changes", my question is if this is normal behavior for Meraki switches? 

The events trigger meraki alerts, but "auto-resolve", lasting typically 2-5 minutes. Nothing has changed regarding network topology, and there is no reported issues regarding connected devices and network connectivity. 

[alemabrahao]

This is not common and can be caused by a variety of reasons, such as:

• Port flapping (e.g., due to a faulty cable or loose connection)
• BPDU conflicts (multiple BPDUs received in a short period of time)
• Misconfigured STP settings or network loops

[MangoIT]

I do see in event logs (for switches with triggered STP Top. Changes) the event type 'Mac Address Flapping', based on the details these trace back to switchports that have Meraki AP's connected. Switchports passed cable checks.

Is there a correlation between the STP alerts, and the event type occurring at ports with AP's?

[alemabrahao]

This is normal regarding the AP port, it occurs every time a client roams from one AP to another.

[Blue_Bird]

Check following documentation: https://documentation.meraki.com/MS/Deployment_Guides/Advanced_MS_Setup_Guide#Rapid-PVST

Problme  could also be with Incorrect Stp configurations like mixing both Cisco and Meraki switches..!

Thanks

[RWelch]

As @alemabrahao mentioned, there are various reasons why it might be happening.

Do the event logs give you any indication of where the problem lies (resides)?  Perhaps you have a bad SFP module, patch cable or somewhere any of these connections might not be seated well (properly).  If nothing has changed in your environment, it's possible a cable or transceiver are not working as expected.

You can also check the STP bridge priority to make sure you have set the right switch with the desired root bridge priority.

[PhilipDAth]

Have you configured the ports that users connect to as access ports?  If they are trunk ports, then every time the port goes up/down, it'll trigger an STP change.