[  519.055021] bond0: (slave eth0): making interface the new active one
[  519.055128] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.210232] bond0: (slave eth0): Releasing backup interface
[  523.280585] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.442159] bond0: (slave eth0): Releasing backup interface
[  527.476137] bond0 (unregistering): Released all slaves