1-97
Cisco ONS 15454 DWDM Troubleshooting Guide, R7.0.1
78-17742-02
Chapter 1 General Troubleshooting
1.13.2 VOA Failure Scenarios
Note If no site practice exists for cleaning fibers, complete the procedure in the “Maintain the
Node” chapter of the Cisco ONS 15454 DWDM Procedure Guide.
g. If the alarm condition persists even after the cabling is checked or fixed, replace the 32MUX-O card
(refer to the “Add and Remove Cards and Nodes” chapter of the Cisco ONS 15454 DWDM
Procedure Guide. Before replacing the card, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call Cisco TAC (1 800 553-2447) in
order to report a service-affecting problem).
Warning
High-performance devices on this card can get hot during operation. To remove the card, hold it by
the faceplate and bottom edge. Allow the card to cool before touching any other part of it or before
placing it in an antistatic bag.
Statement 201
Condition B2—OPWR-LowDEGrade Alarm
Step 1 Verify the alarm validity:
a. Identify the DWDM node where the alarmed card is located.
b. Double-click the card (either the 32MUX-O or the 32WSS card).
c. Click Alarms.
d. Verify that an Optical Power Degrade Low (OPWR-LDEG) alarm is present on the ADD-RX port.
e. Click the Synchronize button at the bottom left of the window.
f. If the alarm is correctly reported, go to Step 2. If not, close the CTC application, delete the CTC
cache, and open the CTC connection again.
Note If the alarm inconsistency persists, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call Cisco TAC (1 800 553-2447) in
order to report a service-affecting problem.
Step 2 In card view, click Circuits and retrieve the node, card, and port information for the alarmed channel
from the Source field of the OCHNC circuit. Then, follow the procedures in Step 3 (for 32MUX-O,
32WSS, or AD-xC-xx.x cards) or Step 4 (for TXP, MXP, or line cards) as appropriate.
Step 3 Verify the correct behavior of the far-end DWDM card (32MUX-O, 32WSS, or AD-xC-xx.x) that
manages the channel (wavelength). To do this, verify that the power value coming in on the ADD_RX
port is correct:
a. In card view, click the Provisioning > Optical Chn: Optical Connector X > Parameters tabs.
Note X is number (1 to 4) of the proper multi-fibers MPO connector that manages the alarmed
channel (wavelength).
b. The Power field value must be the same as the VOA Power Ref field. If it is not, take the appropriate
corrective action for the alarm according to Chapter 2, “Alarm Troubleshooting.”
To Next Page
Loading...
Need help?
General
