[  516.620503] bond0: (slave eth0): making interface the new active one
[  516.620594] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.855175] bond0: (slave eth0): Releasing backup interface
[  520.963520] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.142214] bond0: (slave eth0): Releasing backup interface
[  525.173057] bond0 (unregistering): Released all slaves