[  519.656143] bond0: (slave eth0): making interface the new active one
[  519.656232] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.848639] bond0: (slave eth0): Releasing backup interface
[  523.912169] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.075569] bond0: (slave eth0): Releasing backup interface
[  528.103502] bond0 (unregistering): Released all slaves