[  519.881497] bond0: (slave eth0): making interface the new active one
[  519.881582] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.050946] bond0: (slave eth0): Releasing backup interface
[  524.120362] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.276522] bond0: (slave eth0): Releasing backup interface
[  528.313468] bond0 (unregistering): Released all slaves