[  520.938939] bond0: (slave eth0): making interface the new active one
[  520.939020] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.151684] bond0: (slave eth0): Releasing backup interface
[  525.260670] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.436268] bond0: (slave eth0): Releasing backup interface
[  529.468278] bond0 (unregistering): Released all slaves