[  520.688009] bond0: (slave eth0): making interface the new active one
[  520.688097] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.872841] bond0: (slave eth0): Releasing backup interface
[  524.958804] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.099701] bond0: (slave eth0): Releasing backup interface
[  529.126553] bond0 (unregistering): Released all slaves