[  503.592670] bond0: (slave eth0): making interface the new active one
[  503.592745] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.786658] bond0: (slave eth0): Releasing backup interface
[  507.863269] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.012738] bond0: (slave eth0): Releasing backup interface
[  512.057494] bond0 (unregistering): Released all slaves