[  517.277773] bond0: (slave eth0): making interface the new active one
[  517.277847] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.431621] bond0: (slave eth0): Releasing backup interface
[  521.517552] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.657493] bond0: (slave eth0): Releasing backup interface
[  525.679296] bond0 (unregistering): Released all slaves