Nortel DMS-100 Manual page 333

4-126 Recovery procedures for individual devices and services
Recovering a stuck HLIU under a composite clock failure
8
9
10
11
297-8021-545 Standard 14.02 May 2001
Note: When the composite clock is down, the HLIU goes into ISTb state.
The HLIU in ISTb state returns to in-service state when the composite
clock is recovered. Do not attempt to recover the HLIU with the RTS
command. Use step 7, 8 and 9 to return a stuck HLIU to service,
Manually busy the HLIU that is in OffL state by typing
>BUSY hliu_no
where
hliu_no
is the number of the HLIU
To return an HLIU in ManB state to service, type
>RTS FORCE
and press the Enter key.
Note: If you have previously attempted an RTS before performing the
RTS FORCE command on the HLIU, the HLIU will remain in the ISTb state
even after the composite clock is recovered. Refer to Step 11 for
information on how to clear an HLIU of ISTb state after the composite clock
is recovered.
The following is a description of what happens after you apply the RTS
FORCE command to an HLIU:
If the composite clock
is the preferred clock for the
HLIU,
is not the preferred clock for the
HLIU,
To recover the composite clock, perform the ``Recovering a composite clock"
procedure as described in DMS-100 Family STP Recovery Procedures,
297-8101-545.
For HLIUs that remain in ISTb state after the composite clock is recovered,
determine the condition of HLIUs by typing
>QUERYFLT
and pressing the Enter key.
Note: A failed 00S test indicates that an RTS had been attempted while
the composite clock was down. If there is no failed 00S test, follow the
"Recovering a stuck HLIU" procedure as described in DMS-100 Family
STP Recovery Procedures, 297-8101-545 to clear the HLIU of ISTb state.
(continued)
Dothen
the HLIU returns to service in an
ISTb state. When the composite
clock is restored, the system
clears the ISTb state from the
HLIU and returns it to the InSv
(In-service) state. See note in
Step 9 for a description of an ex-
ception.
the HLIU returns to the ISTb
state, and then the InSv state.