[  517.022890] bond0: (slave eth0): making interface the new active one
[  517.022971] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.244899] bond0: (slave eth0): Releasing backup interface
[  521.351398] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.531016] bond0: (slave eth0): Releasing backup interface
[  525.556855] bond0 (unregistering): Released all slaves