[  517.176816] bond0: (slave eth0): making interface the new active one
[  517.176884] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.370237] bond0: (slave eth0): Releasing backup interface
[  521.483872] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.660144] bond0: (slave eth0): Releasing backup interface
[  525.690842] bond0 (unregistering): Released all slaves