[  518.496611] bond0: (slave eth0): making interface the new active one
[  518.496715] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.695648] bond0: (slave eth0): Releasing backup interface
[  522.760327] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.920240] bond0: (slave eth0): Releasing backup interface
[  526.943071] bond0 (unregistering): Released all slaves