[  521.051922] bond0: (slave eth0): making interface the new active one
[  521.052021] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.202017] bond0: (slave eth0): Releasing backup interface
[  525.265028] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.435471] bond0: (slave eth0): Releasing backup interface
[  529.464530] bond0 (unregistering): Released all slaves