[  519.286845] bond0: (slave eth0): making interface the new active one
[  519.286929] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.554455] bond0: (slave eth0): Releasing backup interface
[  523.658858] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.835727] bond0: (slave eth0): Releasing backup interface
[  527.871714] bond0 (unregistering): Released all slaves