Nortel DMS-100 Series Maintenance Manual page 145

and press the Enter key
Note: Performs LCM_REX_TEST on the posted LCM.
or
>TST COVREX NOW
Note: Performs LCMCOV_REX_TEST on the posted LCM.
The following message appears when you enter the TST COVREX NOW
command.
Example of a MAP response:
LCM REM1 00 0 will be put into takeover mode during the
COV REX
Do you want to continue with the COV REX test
Please confirm ("YES", "Y", "NO", or "N")
LCM and ESA-independent REX test
The scheduler initiates REX tests on an LCM. The ESA REX test starts when
the REX tests complete. A manually started LCM REX test does not start an
ESA REX test. A REX test that is not complete sets the LCM to ISTb. This
event occurs when InSv diagnostics fail or SysB when OOS diagnostics fail.
Fault indicators
A REX test that does not complete sets the LCM unit ISTb or SysB with a
reason of REX failed. The system performs audits on LCMs every 10 min and
runs InSv tests. The ISTb flag remains with a REX failed reason. When the
audit is not complete and the system detects additional failure conditions, the
audit adds to the ISTb list. When the LCM is SysB and the system performs a
correct system RTS, the unit returns to ISTb. The unit returns with the REX
failed reason. The unit does not return to InSv. To remove the ISTb state, the
LCM must complete a manual RTS or a manual or scheduled REX test.
The system generates a node assessment graph (NAG) log report (NAG400)
each hour. The system also generates a NAG report in response to the NAG
command. The NAG report lists all nodes that are not in-service (InSv). The
REX_INFO field of log NAG400 displays the results of the latest REX test.
For LCMs, the LCM_REX_TEST result appears first. A colon separates the
LCM_REX_TEST result from the LCMCOV_REX_TEST result. For more
information on NAG400 logs, refer to the OPM Related Logs section of this
document.
DMS-100 Family OPM Maintenance Manual ISN07 (TDM)/SN07 (DMS) and up
Functional overview 2-69