[  514.001131] bond0: (slave eth0): making interface the new active one
[  514.001208] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.231266] bond0: (slave eth0): Releasing backup interface
[  518.351183] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.579737] bond0: (slave eth0): Releasing backup interface
[  522.608632] bond0 (unregistering): Released all slaves