[  517.655675] bond0: (slave eth0): making interface the new active one
[  517.655759] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.881020] bond0: (slave eth0): Releasing backup interface
[  522.005912] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.232074] bond0: (slave eth0): Releasing backup interface
[  526.281016] bond0 (unregistering): Released all slaves