[  517.415446] bond0: (slave eth0): making interface the new active one
[  517.415591] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.614447] bond0: (slave eth0): Releasing backup interface
[  521.702449] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.913236] bond0: (slave eth0): Releasing backup interface
[  525.937162] bond0 (unregistering): Released all slaves