[  517.639207] bond0: (slave eth0): making interface the new active one
[  517.639281] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.881507] bond0: (slave eth0): Releasing backup interface
[  522.001270] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.169195] bond0: (slave eth0): Releasing backup interface
[  526.204017] bond0 (unregistering): Released all slaves