[  511.170720] bond0: (slave eth0): making interface the new active one
[  511.170816] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.345756] bond0: (slave eth0): Releasing backup interface
[  515.422885] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.570273] bond0: (slave eth0): Releasing backup interface
[  519.600248] bond0 (unregistering): Released all slaves