[  514.759432] bond0: (slave eth0): making interface the new active one
[  514.759524] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.001209] bond0: (slave eth0): Releasing backup interface
[  519.110307] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.284918] bond0: (slave eth0): Releasing backup interface
[  523.319999] bond0 (unregistering): Released all slaves