[  516.403176] bond0: (slave eth0): making interface the new active one
[  516.403273] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.669543] bond0: (slave eth0): Releasing backup interface
[  520.786516] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.951216] bond0: (slave eth0): Releasing backup interface
[  524.978049] bond0 (unregistering): Released all slaves