[  519.202875] bond0: (slave eth0): making interface the new active one
[  519.202976] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.343073] bond0: (slave eth0): Releasing backup interface
[  523.404892] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.569310] bond0: (slave eth0): Releasing backup interface
[  527.597245] bond0 (unregistering): Released all slaves