[  515.220547] bond0: (slave eth0): making interface the new active one
[  515.220627] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.369820] bond0: (slave eth0): Releasing backup interface
[  519.444052] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.597399] bond0: (slave eth0): Releasing backup interface
[  523.635227] bond0 (unregistering): Released all slaves