[  515.599678] bond0: (slave eth0): making interface the new active one
[  515.599765] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.834580] bond0: (slave eth0): Releasing backup interface
[  519.943953] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.119121] bond0: (slave eth0): Releasing backup interface
[  524.151058] bond0 (unregistering): Released all slaves