[  514.300961] bond0: (slave eth0): making interface the new active one
[  514.301077] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.501403] bond0: (slave eth0): Releasing backup interface
[  518.585451] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.731663] bond0: (slave eth0): Releasing backup interface
[  522.757385] bond0 (unregistering): Released all slaves