[  519.050889] bond0: (slave eth0): making interface the new active one
[  519.051010] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.216037] bond0: (slave eth0): Releasing backup interface
[  523.294465] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.437106] bond0: (slave eth0): Releasing backup interface
[  527.464016] bond0 (unregistering): Released all slaves