[  517.007394] bond0: (slave eth0): making interface the new active one
[  517.007466] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.242612] bond0: (slave eth0): Releasing backup interface
[  521.360004] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.533034] bond0: (slave eth0): Releasing backup interface
[  525.571935] bond0 (unregistering): Released all slaves