[  517.283851] bond0: (slave eth0): making interface the new active one
[  517.283938] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.432091] bond0: (slave eth0): Releasing backup interface
[  521.516716] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.655398] bond0: (slave eth0): Releasing backup interface
[  525.677400] bond0 (unregistering): Released all slaves