[  517.425034] bond0: (slave eth0): making interface the new active one
[  517.425147] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.690695] bond0: (slave eth0): Releasing backup interface
[  521.798832] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.976061] bond0: (slave eth0): Releasing backup interface
[  526.005078] bond0 (unregistering): Released all slaves