[  515.293922] bond0: (slave eth0): making interface the new active one
[  515.294011] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.517532] bond0: (slave eth0): Releasing backup interface
[  519.627421] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.800203] bond0: (slave eth0): Releasing backup interface
[  523.826141] bond0 (unregistering): Released all slaves