[  517.715932] bond0: (slave eth0): making interface the new active one
[  517.716030] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.948658] bond0: (slave eth0): Releasing backup interface
[  522.055152] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.233072] bond0: (slave eth0): Releasing backup interface
[  526.270979] bond0 (unregistering): Released all slaves