[  519.320638] bond0: (slave eth0): making interface the new active one
[  519.320748] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.477163] bond0: (slave eth0): Releasing backup interface
[  523.559272] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.703255] bond0: (slave eth0): Releasing backup interface
[  527.731144] bond0 (unregistering): Released all slaves