[  519.527614] bond0: (slave eth0): making interface the new active one
[  519.527721] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.724622] bond0: (slave eth0): Releasing backup interface
[  523.804975] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.943442] bond0: (slave eth0): Releasing backup interface
[  527.976393] bond0 (unregistering): Released all slaves