[  520.147507] bond0: (slave eth0): making interface the new active one
[  520.147619] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.306723] bond0: (slave eth0): Releasing backup interface
[  524.381474] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.537535] bond0: (slave eth0): Releasing backup interface
[  528.574208] bond0 (unregistering): Released all slaves