[  521.980433] bond0: (slave eth0): making interface the new active one
[  521.980517] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.160584] bond0: (slave eth0): Releasing backup interface
[  526.238117] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.389576] bond0: (slave eth0): Releasing backup interface
[  530.423519] bond0 (unregistering): Released all slaves