Loop diagnostic state forced (LDSF). Defines whether the line should be forced into the loop diagnostics mode by the near-end xTU of this line. Note that a loop diagnostic may be initiated by the far-end xTU at any time.

Only when the xdsl2LineStatusPwrMngState object is in the 'l3' state and the xdsl2LineCmndConfPmsf object is in the 'l0orL2toL3' state, can the line be forced into loop diagnostic mode procedures. Upon successful completion of the loop diagnostic mode procedures, the Access Node shall set this object to 'inhibit', and xdsl2LineStatusPwrMngState will remain in the 'l3' state. The loop diagnostic data shall be available at least until xdsl2LineCmndConfPmsf is set to the 'l3toL0' state.

The results of the loop diagnostic procedure are stored in the tables xdsl2SCStatusTable, xdsl2SCStatusBandTable, and xdsl2SCStatusSegmentTable. The status of the loop diagnostic procedure is indicated by xdsl2LineCmndConfLdsfFailReason.

As long as loop diagnostic procedures are not completed successfully, attempts shall be made to do so, until the loop diagnostic mode is no longer forced on the line through this configuration parameter.