[  502.551880] bond0: (slave eth0): making interface the new active one
[  502.551951] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.706922] bond0: (slave eth0): Releasing backup interface
[  506.774966] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.937780] bond0: (slave eth0): Releasing backup interface
[  510.963499] bond0 (unregistering): Released all slaves