[  519.464714] bond0: (slave eth0): making interface the new active one
[  519.464828] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.656690] bond0: (slave eth0): Releasing backup interface
[  523.724871] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.888083] bond0: (slave eth0): Releasing backup interface
[  527.917099] bond0 (unregistering): Released all slaves