[  519.267491] bond0: (slave eth0): making interface the new active one
[  519.267595] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.487143] bond0: (slave eth0): Releasing backup interface
[  523.597835] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.772958] bond0: (slave eth0): Releasing backup interface
[  527.806916] bond0 (unregistering): Released all slaves