[  521.224528] bond0: (slave eth0): making interface the new active one
[  521.224620] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.464313] bond0: (slave eth0): Releasing backup interface
[  525.577998] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.752253] bond0: (slave eth0): Releasing backup interface
[  529.783133] bond0 (unregistering): Released all slaves