[  521.099830] bond0: (slave eth0): making interface the new active one
[  521.099900] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.262417] bond0: (slave eth0): Releasing backup interface
[  525.328021] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.495380] bond0: (slave eth0): Releasing backup interface
[  529.535741] bond0 (unregistering): Released all slaves