[  514.704047] bond0: (slave eth0): making interface the new active one
[  514.704138] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.942524] bond0: (slave eth0): Releasing backup interface
[  519.046357] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.227037] bond0: (slave eth0): Releasing backup interface
[  523.260994] bond0 (unregistering): Released all slaves