[  516.418841] bond0: (slave eth0): making interface the new active one
[  516.418924] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.661784] bond0: (slave eth0): Releasing backup interface
[  520.772920] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.948162] bond0: (slave eth0): Releasing backup interface
[  524.973998] bond0 (unregistering): Released all slaves