[  520.485940] bond0: (slave eth0): making interface the new active one
[  520.486053] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.683190] bond0: (slave eth0): Releasing backup interface
[  524.758837] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.908261] bond0: (slave eth0): Releasing backup interface
[  528.940187] bond0 (unregistering): Released all slaves