[  521.959232] bond0: (slave eth0): making interface the new active one
[  521.959374] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.165521] bond0: (slave eth0): Releasing backup interface
[  526.260826] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.450858] bond0: (slave eth0): Releasing backup interface
[  530.483613] bond0 (unregistering): Released all slaves