[  517.410273] bond0: (slave eth0): making interface the new active one
[  517.410348] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.624709] bond0: (slave eth0): Releasing backup interface
[  521.734629] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.909931] bond0: (slave eth0): Releasing backup interface
[  525.938868] bond0 (unregistering): Released all slaves