[  502.001100] bond0: (slave eth0): making interface the new active one
[  502.001183] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.186120] bond0: (slave eth0): Releasing backup interface
[  506.263281] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.418380] bond0: (slave eth0): Releasing backup interface
[  510.444411] bond0 (unregistering): Released all slaves