[  521.719040] bond0: (slave eth0): making interface the new active one
[  521.719126] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.898514] bond0: (slave eth0): Releasing backup interface
[  525.967288] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.117309] bond0: (slave eth0): Releasing backup interface
[  530.132389] bond0 (unregistering): Released all slaves