[  520.462406] bond0: (slave eth0): making interface the new active one
[  520.462488] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.615062] bond0: (slave eth0): Releasing backup interface
[  524.681694] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.842220] bond0: (slave eth0): Releasing backup interface
[  528.880152] bond0 (unregistering): Released all slaves