cloud monitored C9500-48Y4C MAC Flapping

[Rayw]

I have a C9500-48Y4C IOS XE 17.12.4 that is notifying of a lot of MAC flapping. This is the typical error log. 

Oct 27 13:14:41.253: %SW_MATM-4-MACFLAP_NOTIF: Host 0050.56b1.96a0 in vlan 412 is flapping between port Twe1/0/3 and port Po1

When the switch was onboarded to the dashboard device tracking was enabled. There is device tracking on trunk ports. it is my understanding that device tracking on trunk ports causes MAC flapping errors. I tried removing the device tracking from the trunk ports but the dashboard adds them back in 15 minutes. Anyone have any suggestions on how to remove device tracking from trunk ports?

device-tracking policy MERAKI_POLICY
trusted-port
security-level glean
device-role switch
no protocol udp
tracking enable
!
interface Port-channel1
switchport mode trunk
device-tracking attach-policy MERAKI_POLICY
!
interface TwentyFiveGigE1/0/3
switchport mode trunk
device-tracking attach-policy MERAKI_POLICY

[Mloraditch]

It's not something you can do from the dashboard. Support may be able to do something on the backend for you.

MAC Flapping is generally a spurious error as long as the macs in question are originating from access points. In Meraki Managed Switches this error shows up all the time in the logs. More an FYI if you ever went down that road. Support may be able to help you now, but if your longer term path includes fully managed they will be back and unconfigurable (as things currently work).

[Rayw]

I should have stated the MAC flapping are not from Access Points.  They are wired. It is causing negative affects on network performance.

[Mloraditch]

Yeah that's a bigger problem, definitely see if support is aware and can do something

[PhilipDAth]

What kind of device is the port plugged into?