[  519.329339] bond0: (slave eth0): making interface the new active one
[  519.329415] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.540041] bond0: (slave eth0): Releasing backup interface
[  523.647134] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.831948] bond0: (slave eth0): Releasing backup interface
[  527.861905] bond0 (unregistering): Released all slaves