[  513.387967] bond0: (slave eth0): making interface the new active one
[  513.388049] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.578279] bond0: (slave eth0): Releasing backup interface
[  517.635439] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.805887] bond0: (slave eth0): Releasing backup interface
[  521.832891] bond0 (unregistering): Released all slaves