[  516.809141] bond0: (slave eth0): making interface the new active one
[  516.809221] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.998797] bond0: (slave eth0): Releasing backup interface
[  521.097556] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.286201] bond0: (slave eth0): Releasing backup interface
[  525.313165] bond0 (unregistering): Released all slaves