[  514.790847] bond0: (slave eth0): making interface the new active one
[  514.790946] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.051016] bond0: (slave eth0): Releasing backup interface
[  519.297795] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.618231] bond0: (slave eth0): Releasing backup interface
[  523.649065] bond0 (unregistering): Released all slaves