[  520.802127] bond0: (slave eth0): making interface the new active one
[  520.802214] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.004759] bond0: (slave eth0): Releasing backup interface
[  525.080459] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.234011] bond0: (slave eth0): Releasing backup interface
[  529.266809] bond0 (unregistering): Released all slaves