Cisco ONS 15600 SDH Troubleshooting Manual page 178

2.6.98 HP-UNEQ
When the affected circuits appear, look in the Type column for a virtual circuit (VC).
Step 4
If the Type column does not contain a VC, there are no VCs. Go to
Step 5
If the Type column does contain a VC, attempt to delete these row(s) by completing the following steps:
Step 6
Note
Click the VC row to highlight it. Delete the circuit.
a.
If an error message dialog box appears, the VC is valid and not the cause of the alarm.
b.
If any other rows contain VT, repeat Steps
c.
If all ONS nodes in the ring appear in the CTC network view, verify that the circuits are all complete by
Step 7
completing the following steps:
Click the Circuits tab.
a.
Verify that INCOMPLETE is not listed in the Status column of any circuits.
b.
If you find circuits listed as incomplete, verify that these circuits are not working circuits that continue
Step 8
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.
If the incomplete circuits are not needed or are not passing traffic, delete the incomplete circuits.
Step 9
Recreate the circuit with the correct circuit size. Refer to the "Create Circuits and Tunnels" chapter in
Step 10
the Cisco ONS 15600 SDH Procedure Guide for circuit procedures.
Log back in and verify that all circuits terminating in the reporting card are active by completing the
Step 11
following steps:
Click the Circuits tab.
a.
Verify that the Status column lists all circuits as active.
b.
If the alarm does not clear, clean the far-end optical fiber according to site practice. If no site practice
Step 12
exists, complete the procedure in the "Maintain the Node" chapter in the Cisco ONS 15600 SDH
Procedure Guide.
On the OC192 LR/STM64 LH 1550 card, the laser is on when the card is booted and the safety key is in
Warning
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
Invisible laser radiation could be emitted from the end of the unterminated fiber cable or connector.
Warning
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
Use of controls, adjustments, or performing procedures other than those specified could result in
Warning
hazardous radiation exposure. Statement 1057
If the alarm does not clear, replace the optical and/or Ethernet cards.
Step 13
Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
2-70
The node does not allow you to delete a valid VC.
Step 7.
a through b.
Chapter 2 Alarm Troubleshooting
July 2010