[  517.278381] bond0: (slave eth0): making interface the new active one
[  517.278505] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.492699] bond0: (slave eth0): Releasing backup interface
[  521.572397] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.717392] bond0: (slave eth0): Releasing backup interface
[  525.756343] bond0 (unregistering): Released all slaves