[  520.143409] bond0: (slave eth0): making interface the new active one
[  520.143509] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.375369] bond0: (slave eth0): Releasing backup interface
[  524.486588] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.659758] bond0: (slave eth0): Releasing backup interface
[  528.683651] bond0 (unregistering): Released all slaves