[  515.349829] bond0: (slave eth0): making interface the new active one
[  515.349908] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.577305] bond0: (slave eth0): Releasing backup interface
[  519.695661] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.862963] bond0: (slave eth0): Releasing backup interface
[  523.895871] bond0 (unregistering): Released all slaves