9.
If the control card reset does not clear the alarm, delete the problematic RS-DCC termination by
completing the following steps:
10.
Recreate the RS-DCC termination. Refer to the Turn Up Network chapter in the Configuration guide
for procedures.
11.
Verify that both ends of the DCC have been recreated at the optical ports.
DETAILED STEPS
Step 1
If the alarm does not clear on the reporting node, verify the physical connections between the cards and that the fiber-optic
cables are configured to carry RS-DCC traffic. If they are not, correct them. For more information about OC-N fiber
connections and terminations, refer to the Install Cards and Fiber-Optic Cable chapter in the Configuration guide.
Always use the supplied electrostatic discharge wristband when working with a powered system. Plug the
wristband cable into the ESD jack located lower-right edge of the shelf assembly.
Caution
If the physical connections are correct and configured to carry DCC traffic, ensure that both ends of the fiber span have
unlocked ports. Verify that the ACT/SBY LED on each card is green.
Step 2
When the LEDs on the cards are correctly illuminated, complete the
Verify or Create Node RS-DCC Terminations, on
procedure to verify that the DCC is provisioned for the ports at both ends of the fiber span.
Step 3
Repeat
procedure at the adjacent nodes.
Step 4
If DCC is provisioned for the ends of the span, verify that the port is active and in service by completing the following
steps:
a) Confirm that the card shows a green LED in CTC or on the physical card.
A green ACT/SBY LED indicates an active card. An amber ACT/SBY LED indicates a standby card.
b) To determine whether the port is in service, double-click the card in CTC to display the card view.
c) For an OC-N card, click the
Provisioning
>
Line
tabs. For the OSCM card, click the
Provisioning
>
STM-1 Line
tabs.
d) Verify that the
Admin State column
lists the port as
IS
.
e) If the
Admin State
column lists the port as OOS,MT or OOS,DSBLD, click the column and click
IS
from the
drop-down list. Click
Apply
.
If a port in the unlocked admin state does not receive a signal, the LOS alarm is raised and the port service
state transitions to Locked-disabled, automaticInService & failed.
Note
Step 5
For all nodes, if the card is in service, use an optical test set to determine whether signal failures are present on fiber
terminations. For specific procedures to use the test set equipment, consult the manufacturer.
Using an optical test set disrupts service on an OC-N card. It could be necessary to manually switch traffic
carrying circuits over to a protection path. Refer to the
Protection Switching, Lock Initiation, and Clearing,
section for commonly used switching procedures.
Caution
Step 6
If no signal failures exist on terminations, measure power levels to verify that the budget loss is within the parameters
of the receiver.
Step 7
If budget loss is within parameters, ensure that fiber connectors are securely fastened and properly terminated. For
more information refer to Install Cards and Fiber-Optic Cables chapter in the Configuration guide.
Step 8
Wait ten minutes to verify that the card you reset completely reboots and becomes the standby card.
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
382
Alarm Troubleshooting
Clear the RS-EOC Alarm
