[  516.112287] bond0: (slave eth0): making interface the new active one
[  516.112355] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.342642] bond0: (slave eth0): Releasing backup interface
[  520.437108] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.631887] bond0: (slave eth0): Releasing backup interface
[  524.663839] bond0 (unregistering): Released all slaves