[  515.306760] bond0: (slave eth0): making interface the new active one
[  515.306845] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.514425] bond0: (slave eth0): Releasing backup interface
[  519.642191] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.802083] bond0: (slave eth0): Releasing backup interface
[  523.834023] bond0 (unregistering): Released all slaves