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Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 2 Alarm Troubleshooting
2.6.98 HP-UNEQ
Step 4
When the affected circuits appear, look in the Type column for a virtual circuit (VC).
Step 5
If the Type column does not contain a VC, there are no VCs. Go to
Step 6
If the Type column does contain a VC, attempt to delete these row(s) by completing the following steps:
Note
The node does not allow you to delete a valid VC.
a.
Click the VC row to highlight it. Delete the circuit.
b.
If an error message dialog box appears, the VC is valid and not the cause of the alarm.
c.
If any other rows contain VT, repeat Steps
through
Step 7
If all ONS nodes in the ring appear in the CTC network view, verify that the circuits are all complete by
completing the following steps:
a.
Click the
Circuits
tab.
b.
Verify that INCOMPLETE is not listed in the Status column of any circuits.
Step 8
If you find circuits listed as incomplete, verify that these circuits are not working circuits that continue
to pass traffic, using an appropriate optical test set and site-specific procedures. For specific procedures
to use the test set equipment, consult the manufacturer.
Step 9
If the incomplete circuits are not needed or are not passing traffic, delete the incomplete circuits.
Step 10
Recreate the circuit with the correct circuit size. Refer to the “Create Circuits and Tunnels” chapter in
the
Cisco ONS 15600 SDH Procedure Guide
for circuit procedures.
Step 11
Log back in and verify that all circuits terminating in the reporting card are active by completing the
following steps:
a.
Click the
Circuits
tab.
b.
Verify that the
Status
column lists all circuits as active.
Step 12
If the alarm does not clear, clean the far-end optical fiber according to site practice. If no site practice
exists, complete the procedure in the “Maintain the Node” chapter in the
Cisco ONS 15600 SDH
Procedure Guide
.
Warning
On the OC192 LR/STM64 LH 1550 card, the laser is on when the card is booted and the safety key is in
the on position (labeled 1). The port does not have to be in service for the laser to be on. The laser is
off when the safety key is off (labeled 0).
Statement 293
Warning
Invisible laser radiation could be emitted from the end of the unterminated fiber cable or connector.
Do not stare into the beam directly with optical instruments. Viewing the laser output with certain
optical instruments (for example, eye loupes, magnifiers, and microscopes) within a distance of
100 mm could pose an eye hazard.
Statement 1056
Warning
Use of controls, adjustments, or performing procedures other than those specified could result in
hazardous radiation exposure.
Statement 1057
Step 13
If the alarm does not clear, replace the optical and/or Ethernet cards.
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