MAC flapping reported between 2 port channels on Nexus 5596

Hi all, I'm seeing messages like the following reported on a Nexus 5596:

2015 Jan 7 12:40:48.954 Switch-5596A %FWM-6-MAC_MOVE_NOTIFICATION: Host 00ab.cdef.0123 in vlan 104 is flapping between port Po5 and port Po10

Po5 is connected to a storage cluster and is configured as an access port:

interface port-channel5 description Storage Shelf 1 priority-flow-control mode off switchport access vlan 104 spanning-tree port type edge spanning-tree bpduguard enable speed 10000 flowcontrol receive on vpc 5

Po10 is the uplink to the core switch:

interface port-channel10 description uplink switchport mode trunk switchport trunk native vlan 2702 switchport trunk allowed vlan 64,94,104,124 spanning-tree port type network speed 10000 vpc 10

Any ideas on why we would be seeing these log messages?

Thank you.

Reply to
Loading thread data ... Forums website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.