[  517.562921] bond0: (slave eth0): making interface the new active one
[  517.563007] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.758974] bond0: (slave eth0): Releasing backup interface
[  521.880379] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.101101] bond0: (slave eth0): Releasing backup interface
[  526.134949] bond0 (unregistering): Released all slaves