[  516.478234] bond0: (slave eth0): making interface the new active one
[  516.478315] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.734870] bond0: (slave eth0): Releasing backup interface
[  520.861564] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.081062] bond0: (slave eth0): Releasing backup interface
[  525.110944] bond0 (unregistering): Released all slaves