[  517.344514] bond0: (slave eth0): making interface the new active one
[  517.344614] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.561478] bond0: (slave eth0): Releasing backup interface
[  521.681885] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.850849] bond0: (slave eth0): Releasing backup interface
[  525.883887] bond0 (unregistering): Released all slaves