[  517.055981] bond0: (slave eth0): making interface the new active one
[  517.056063] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.307131] bond0: (slave eth0): Releasing backup interface
[  521.418661] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.592066] bond0: (slave eth0): Releasing backup interface
[  525.632085] bond0 (unregistering): Released all slaves