[  517.073477] bond0: (slave eth0): making interface the new active one
[  517.073569] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.234956] bond0: (slave eth0): Releasing backup interface
[  521.303532] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.460212] bond0: (slave eth0): Releasing backup interface
[  525.502235] bond0 (unregistering): Released all slaves