[  517.179880] bond0: (slave eth0): making interface the new active one
[  517.179967] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.352492] bond0: (slave eth0): Releasing backup interface
[  521.421903] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.582270] bond0: (slave eth0): Releasing backup interface
[  525.609116] bond0 (unregistering): Released all slaves