[  503.620826] bond0: (slave eth0): making interface the new active one
[  503.620921] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.797068] bond0: (slave eth0): Releasing backup interface
[  507.886899] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.077985] bond0: (slave eth0): Releasing backup interface
[  512.106941] bond0 (unregistering): Released all slaves