[  519.542959] bond0: (slave eth0): making interface the new active one
[  519.543026] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.722499] bond0: (slave eth0): Releasing backup interface
[  523.788262] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.949796] bond0: (slave eth0): Releasing backup interface
[  527.976839] bond0 (unregistering): Released all slaves