[  521.591429] bond0: (slave eth0): making interface the new active one
[  521.591664] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.853161] bond0: (slave eth0): Releasing backup interface
[  526.005487] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.195748] bond0: (slave eth0): Releasing backup interface
[  530.231481] bond0 (unregistering): Released all slaves