[  519.772293] bond0: (slave eth0): making interface the new active one
[  519.772366] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.994353] bond0: (slave eth0): Releasing backup interface
[  524.097243] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.287141] bond0: (slave eth0): Releasing backup interface
[  528.322959] bond0 (unregistering): Released all slaves