[  519.357545] bond0: (slave eth0): making interface the new active one
[  519.357645] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.544845] bond0: (slave eth0): Releasing backup interface
[  523.629065] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.764541] bond0: (slave eth0): Releasing backup interface
[  527.791242] bond0 (unregistering): Released all slaves