[  519.511886] bond0: (slave eth0): making interface the new active one
[  519.511978] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.723107] bond0: (slave eth0): Releasing backup interface
[  523.791031] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.951279] bond0: (slave eth0): Releasing backup interface
[  527.976931] bond0 (unregistering): Released all slaves