[  511.135571] bond0: (slave eth0): making interface the new active one
[  511.135654] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.351266] bond0: (slave eth0): Releasing backup interface
[  515.465833] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.640774] bond0: (slave eth0): Releasing backup interface
[  519.680672] bond0 (unregistering): Released all slaves