[  503.621299] bond0: (slave eth0): making interface the new active one
[  503.621383] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.794386] bond0: (slave eth0): Releasing backup interface
[  507.862533] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.021263] bond0: (slave eth0): Releasing backup interface
[  512.049313] bond0 (unregistering): Released all slaves