[  513.856301] bond0: (slave eth0): making interface the new active one
[  513.856386] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.040095] bond0: (slave eth0): Releasing backup interface
[  518.143642] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.323979] bond0: (slave eth0): Releasing backup interface
[  522.357952] bond0 (unregistering): Released all slaves