[  514.227761] bond0: (slave eth0): making interface the new active one
[  514.227862] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.419103] bond0: (slave eth0): Releasing backup interface
[  518.499066] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.647190] bond0: (slave eth0): Releasing backup interface
[  522.678123] bond0 (unregistering): Released all slaves