[  519.536504] bond0: (slave eth0): making interface the new active one
[  519.536582] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.679005] bond0: (slave eth0): Releasing backup interface
[  523.743628] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.910432] bond0: (slave eth0): Releasing backup interface
[  527.937399] bond0 (unregistering): Released all slaves