[  521.588363] bond0: (slave eth0): making interface the new active one
[  521.588525] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.773578] bond0: (slave eth0): Releasing backup interface
[  525.848168] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.998859] bond0: (slave eth0): Releasing backup interface
[  530.021815] bond0 (unregistering): Released all slaves