[  514.558084] bond0: (slave eth0): making interface the new active one
[  514.558160] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.810591] bond0: (slave eth0): Releasing backup interface
[  518.928933] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.097099] bond0: (slave eth0): Releasing backup interface
[  523.121980] bond0 (unregistering): Released all slaves