[  519.212258] bond0: (slave eth0): making interface the new active one
[  519.212339] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.407947] bond0: (slave eth0): Releasing backup interface
[  523.498748] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.696791] bond0: (slave eth0): Releasing backup interface
[  527.727733] bond0 (unregistering): Released all slaves