[  521.194148] bond0: (slave eth0): making interface the new active one
[  521.194241] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.402564] bond0: (slave eth0): Releasing backup interface
[  525.475135] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.627554] bond0: (slave eth0): Releasing backup interface
[  529.661462] bond0 (unregistering): Released all slaves