[  519.571154] bond0: (slave eth0): making interface the new active one
[  519.571234] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.804886] bond0: (slave eth0): Releasing backup interface
[  523.910765] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.092079] bond0: (slave eth0): Releasing backup interface
[  528.118996] bond0 (unregistering): Released all slaves