[  517.647782] bond0: (slave eth0): making interface the new active one
[  517.647963] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.816139] bond0: (slave eth0): Releasing backup interface
[  521.908240] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.109212] bond0: (slave eth0): Releasing backup interface
[  526.138189] bond0 (unregistering): Released all slaves