[  520.834087] bond0: (slave eth0): making interface the new active one
[  520.834157] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.048620] bond0: (slave eth0): Releasing backup interface
[  525.159949] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.330050] bond0: (slave eth0): Releasing backup interface
[  529.353005] bond0 (unregistering): Released all slaves