[  519.373408] bond0: (slave eth0): making interface the new active one
[  519.373475] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.613457] bond0: (slave eth0): Releasing backup interface
[  523.714159] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.895964] bond0: (slave eth0): Releasing backup interface
[  527.927887] bond0 (unregistering): Released all slaves