[  519.778291] bond0: (slave eth0): making interface the new active one
[  519.778361] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.983569] bond0: (slave eth0): Releasing backup interface
[  524.051018] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.210091] bond0: (slave eth0): Releasing backup interface
[  528.247058] bond0 (unregistering): Released all slaves