[  511.857446] bond0: (slave eth0): making interface the new active one
[  511.857522] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.060997] bond0: (slave eth0): Releasing backup interface
[  516.173844] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.350129] bond0: (slave eth0): Releasing backup interface
[  520.380098] bond0 (unregistering): Released all slaves