[  520.821194] bond0: (slave eth0): making interface the new active one
[  520.821294] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.010167] bond0: (slave eth0): Releasing backup interface
[  525.090461] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.238435] bond0: (slave eth0): Releasing backup interface
[  529.267439] bond0 (unregistering): Released all slaves