[  503.585557] bond0: (slave eth0): making interface the new active one
[  503.585637] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.794811] bond0: (slave eth0): Releasing backup interface
[  507.896937] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.080669] bond0: (slave eth0): Releasing backup interface
[  512.104819] bond0 (unregistering): Released all slaves