[  514.202543] bond0: (slave eth0): making interface the new active one
[  514.202637] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.367987] bond0: (slave eth0): Releasing backup interface
[  518.431134] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.597494] bond0: (slave eth0): Releasing backup interface
[  522.617437] bond0 (unregistering): Released all slaves