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VPC+ fabricpath - MAC address flapping between switch-id and VPC id

mmacdonald70
Level 1
Level 1

We have a fabricpath network configured.  For several days, we are seeing our logs filling up with errors from leaf nodes like:

%FWM-6-MAC_MOVE_NOTIFICATION:  Host aaaa.bbbb.cccc in vlan x is flapping between gpc1:502 and gpc1:50

- Most of aaaa.bbbb.cccc.dddd is the mac address of the SVI interface for each vlan gateway

- Vlan is the corresponding vlan for the SVI above

- gpc1:502 is the switch ID for the primary VPC peer

- gpc1:50 is the shared switch id

When I run 'show mac add' on each of the switches with the SVI, the primary shows sup-eth2 and the secondary shows 50.0.0

Show VPC shows VPC up with no errors.

I'm not sure where to look next.

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