[  518.555525] bond0: (slave eth0): making interface the new active one
[  518.555674] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.709059] bond0: (slave eth0): Releasing backup interface
[  522.794648] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.934671] bond0: (slave eth0): Releasing backup interface
[  526.962448] bond0 (unregistering): Released all slaves