[  517.673921] bond0: (slave eth0): making interface the new active one
[  517.674003] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.879576] bond0: (slave eth0): Releasing backup interface
[  521.993004] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.165858] bond0: (slave eth0): Releasing backup interface
[  526.189865] bond0 (unregistering): Released all slaves