[  521.699232] bond0: (slave eth0): making interface the new active one
[  521.699339] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.898275] bond0: (slave eth0): Releasing backup interface
[  525.961336] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.121480] bond0: (slave eth0): Releasing backup interface
[  530.143435] bond0 (unregistering): Released all slaves