[  519.138480] bond0: (slave eth0): making interface the new active one
[  519.138578] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.357867] bond0: (slave eth0): Releasing backup interface
[  523.440151] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.581300] bond0: (slave eth0): Releasing backup interface
[  527.608233] bond0 (unregistering): Released all slaves