[  507.480525] bond0: (slave eth0): making interface the new active one
[  507.480602] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.720165] bond0: (slave eth0): Releasing backup interface
[  511.833739] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.010373] bond0: (slave eth0): Releasing backup interface
[  516.040134] bond0 (unregistering): Released all slaves