[  519.228131] bond0: (slave eth0): making interface the new active one
[  519.228233] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.399887] bond0: (slave eth0): Releasing backup interface
[  523.451400] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.630970] bond0: (slave eth0): Releasing backup interface
[  527.681017] bond0 (unregistering): Released all slaves