[  521.730343] bond0: (slave eth0): making interface the new active one
[  521.730446] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.906027] bond0: (slave eth0): Releasing backup interface
[  525.988701] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.196771] bond0: (slave eth0): Releasing backup interface
[  530.225635] bond0 (unregistering): Released all slaves