[  520.194175] bond0: (slave eth0): making interface the new active one
[  520.194283] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.364239] bond0: (slave eth0): Releasing backup interface
[  524.430653] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.593076] bond0: (slave eth0): Releasing backup interface
[  528.623061] bond0 (unregistering): Released all slaves