[  514.893401] bond0: (slave eth0): making interface the new active one
[  514.893466] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.088282] bond0: (slave eth0): Releasing backup interface
[  519.211069] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.366373] bond0: (slave eth0): Releasing backup interface
[  523.401315] bond0 (unregistering): Released all slaves