[  514.851023] bond0: (slave eth0): making interface the new active one
[  514.851102] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.069777] bond0: (slave eth0): Releasing backup interface
[  519.189502] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.350934] bond0: (slave eth0): Releasing backup interface
[  523.377051] bond0 (unregistering): Released all slaves