[  520.093517] bond0: (slave eth0): making interface the new active one
[  520.093593] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.302818] bond0: (slave eth0): Releasing backup interface
[  524.386227] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.532966] bond0: (slave eth0): Releasing backup interface
[  528.560953] bond0 (unregistering): Released all slaves