[  517.431382] bond0: (slave eth0): making interface the new active one
[  517.431472] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.695241] bond0: (slave eth0): Releasing backup interface
[  521.814512] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.975089] bond0: (slave eth0): Releasing backup interface
[  526.012074] bond0 (unregistering): Released all slaves