[  502.240653] bond0: (slave eth0): making interface the new active one
[  502.240741] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.449604] bond0: (slave eth0): Releasing backup interface
[  506.540131] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.736767] bond0: (slave eth0): Releasing backup interface
[  510.771740] bond0 (unregistering): Released all slaves