[  517.057930] bond0: (slave eth0): making interface the new active one
[  517.058006] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.301141] bond0: (slave eth0): Releasing backup interface
[  521.405244] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.595031] bond0: (slave eth0): Releasing backup interface
[  525.628039] bond0 (unregistering): Released all slaves