[  514.726532] bond0: (slave eth0): making interface the new active one
[  514.726650] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.964351] bond0: (slave eth0): Releasing backup interface
[  519.083348] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.256957] bond0: (slave eth0): Releasing backup interface
[  523.293836] bond0 (unregistering): Released all slaves