[  519.045188] bond0: (slave eth0): making interface the new active one
[  519.045290] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.296830] bond0: (slave eth0): Releasing backup interface
[  523.407529] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.578325] bond0: (slave eth0): Releasing backup interface
[  527.602254] bond0 (unregistering): Released all slaves