Mac address have flap ping

[athikom.ch]

Hi 

I seeing logging mac address flapping on core switch

You can see to connectivity my network in the below.

[no AP]-----------Sw[A]---trunk----Core Switch-----trunk---SW[B]------trunk------Sw[C]----->AP-----> NotebooK

This's logging in core switch 

Jun 29 08:27:21.681: %SW_MATM-4-MACFLAP_NOTIF: Host 4cbb.58d1.66c5 in vlan 112 is flapping between port Gi1/1/4 and port Po5
Jun 29 09:13:22.519: %SW_MATM-4-MACFLAP_NOTIF: Host c09f.05f8.6bc8 in vlan 112 is flapping between port Gi1/1/4 and port Po5
Jun 29 10:20:00.248: %SW_MATM-4-MACFLAP_NOTIF: Host c09f.05f8.6bc8 in vlan 112 is flapping between port Po5 and port Gi1/1/4

I don't understand about  flapping this. Because it's mac address wifi    

How do you think  this case ? 

thank you for support.

[Alessandro Maggio]

Hello!

Please provide more details about your topology. The messages are telling you that the core sees the MAC address on ports Gi1/1/4, and some other times on PortChannel 5. What are these ports? What do they connect?

Is Gi1/1/4 part of the PortChannel5? If yes, or if unsure, post the output of show etherchannel summary.