[  516.011215] bond0: (slave eth0): making interface the new active one
[  516.011283] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.217529] bond0: (slave eth0): Releasing backup interface
[  520.317826] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.501967] bond0: (slave eth0): Releasing backup interface
[  524.533905] bond0 (unregistering): Released all slaves