[  517.040245] bond0: (slave eth0): making interface the new active one
[  517.040322] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.244637] bond0: (slave eth0): Releasing backup interface
[  521.360813] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.527180] bond0: (slave eth0): Releasing backup interface
[  525.563151] bond0 (unregistering): Released all slaves