[  519.464678] bond0: (slave eth0): making interface the new active one
[  519.464776] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.674673] bond0: (slave eth0): Releasing backup interface
[  523.786278] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.955148] bond0: (slave eth0): Releasing backup interface
[  527.987086] bond0 (unregistering): Released all slaves