[  524.983537] bond0: (slave eth0): making interface the new active one
[  524.983604] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.164503] bond0: (slave eth0): Releasing backup interface
[  529.244763] bond0: (slave eth0): Enslaving as an active interface with an up link
[  533.391809] bond0: (slave eth0): Releasing backup interface
[  533.421749] bond0 (unregistering): Released all slaves