[  519.491474] bond0: (slave eth0): making interface the new active one
[  519.491560] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.661653] bond0: (slave eth0): Releasing backup interface
[  523.742400] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.892123] bond0: (slave eth0): Releasing backup interface
[  527.927876] bond0 (unregistering): Released all slaves