[  520.405633] bond0: (slave eth0): making interface the new active one
[  520.405724] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.556968] bond0: (slave eth0): Releasing backup interface
[  524.620145] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.774616] bond0: (slave eth0): Releasing backup interface
[  528.794698] bond0 (unregistering): Released all slaves