[  519.520600] bond0: (slave eth0): making interface the new active one
[  519.520704] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.723486] bond0: (slave eth0): Releasing backup interface
[  523.799960] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.952060] bond0: (slave eth0): Releasing backup interface
[  527.980791] bond0 (unregistering): Released all slaves