[  519.525973] bond0: (slave eth0): making interface the new active one
[  519.526078] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.725094] bond0: (slave eth0): Releasing backup interface
[  523.801759] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.956279] bond0: (slave eth0): Releasing backup interface
[  527.983154] bond0 (unregistering): Released all slaves