[  519.254664] bond0: (slave eth0): making interface the new active one
[  519.254758] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.413161] bond0: (slave eth0): Releasing backup interface
[  523.503484] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.704248] bond0: (slave eth0): Releasing backup interface
[  527.726258] bond0 (unregistering): Released all slaves