[  517.957055] bond0: (slave eth0): making interface the new active one
[  517.957148] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.206216] bond0: (slave eth0): Releasing backup interface
[  522.318378] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.493078] bond0: (slave eth0): Releasing backup interface
[  526.518050] bond0 (unregistering): Released all slaves