[  517.387801] bond0: (slave eth0): making interface the new active one
[  517.387888] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.627056] bond0: (slave eth0): Releasing backup interface
[  521.728012] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.910255] bond0: (slave eth0): Releasing backup interface
[  525.953129] bond0 (unregistering): Released all slaves