[  521.225793] bond0: (slave eth0): making interface the new active one
[  521.225860] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.382891] bond0: (slave eth0): Releasing backup interface
[  525.442752] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.611616] bond0: (slave eth0): Releasing backup interface
[  529.643580] bond0 (unregistering): Released all slaves