[  516.502586] bond0: (slave eth0): making interface the new active one
[  516.502686] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.735945] bond0: (slave eth0): Releasing backup interface
[  520.852118] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.012190] bond0: (slave eth0): Releasing backup interface
[  525.046192] bond0 (unregistering): Released all slaves