[  518.837521] bond0: (slave eth0): making interface the new active one
[  518.837595] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.026942] bond0: (slave eth0): Releasing backup interface
[  523.106527] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.256264] bond0: (slave eth0): Releasing backup interface
[  527.279158] bond0 (unregistering): Released all slaves