[  517.637571] bond0: (slave eth0): making interface the new active one
[  517.637643] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.876652] bond0: (slave eth0): Releasing backup interface
[  521.970969] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.160099] bond0: (slave eth0): Releasing backup interface
[  526.196033] bond0 (unregistering): Released all slaves