[  514.862966] bond0: (slave eth0): making interface the new active one
[  514.863068] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.088250] bond0: (slave eth0): Releasing backup interface
[  519.197430] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.382638] bond0: (slave eth0): Releasing backup interface
[  523.418562] bond0 (unregistering): Released all slaves