Setting this TruthValue to true forces the switch to immediately re-run MAC authentication for a specific client on every port it's currently connected to, while setting it to false has no effect, and it always reads back as false. An administrator uses this to push a client through re-authentication on demand, such as after updating its permissions on the RADIUS server, without having to wait for the client's session timer to expire or physically unplug the device. For example, after changing a device's VLAN assignment on the authentication server, an admin would set this to true to make the switch immediately apply the new assignment.