Description: Indicates if the given row is still valid. You can delete an entry from the threshold table by writing 'invalid' to this variable. If the variable that should be polled in not available the set-operation will fail. The variables to be polled will be stored in a configuration file on the server. If the variable is not available when the agent is loaded, we will sent a trap every ?5? minutes. These traps are stopped as soon as the agent for this variable is loaded, the threshold is deleted or the status is set to inactive. ???????????? The inactive status will also be stored in the configuration file. It won't change until the next time the agent that implements the variable is loaded. ????????????