[  515.166703] bond0: (slave eth0): making interface the new active one
[  515.166794] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.381531] bond0: (slave eth0): Releasing backup interface
[  519.500800] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.669966] bond0: (slave eth0): Releasing backup interface
[  523.702990] bond0 (unregistering): Released all slaves