[  521.710006] bond0: (slave eth0): making interface the new active one
[  521.710106] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.897949] bond0: (slave eth0): Releasing backup interface
[  525.959695] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.126731] bond0: (slave eth0): Releasing backup interface
[  530.159410] bond0 (unregistering): Released all slaves