[  519.363700] bond0: (slave eth0): making interface the new active one
[  519.363816] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.541001] bond0: (slave eth0): Releasing backup interface
[  523.619689] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.765321] bond0: (slave eth0): Releasing backup interface
[  527.800160] bond0 (unregistering): Released all slaves