[  515.831064] bond0: (slave eth0): making interface the new active one
[  515.831156] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.091646] bond0: (slave eth0): Releasing backup interface
[  520.201971] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.380141] bond0: (slave eth0): Releasing backup interface
[  524.405068] bond0 (unregistering): Released all slaves