[  521.739526] bond0: (slave eth0): making interface the new active one
[  521.739609] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.902192] bond0: (slave eth0): Releasing backup interface
[  525.985658] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.128153] bond0: (slave eth0): Releasing backup interface
[  530.153041] bond0 (unregistering): Released all slaves