Cisco NCS 2000 series Troubleshooting Manual page 279

Alarm Troubleshooting
Step 2
Right-click the alarm to display the Select Affected Circuits shortcut menu.
Step 3 Click Select Affected Circuits.
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. Complete the
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
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.
Complete the
Step 10
Recreate the circuit with the correct circuit size. Refer to the Create Circuits and Tunnels chapter in the configuration
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 Configuration guide.
On the OC192 LR/STM64 LH 1550 card:
Warning 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
Use of controls, adjustments, or performing procedures other than those specified could result in
Warning
hazardous radiation exposure. Statement 1057
Step 13
If the alarm does not clear, complete the
cards.
Removing a card that currently carries traffic on one or more ports can cause a traffic hit. To avoid this,
Caution
perform an external switch if a switch has not already occurred.
Delete a Circuit, on page 454
Physically Replace a Card, on page 453
Step 7, on page
Delete a Circuit, on page 454
6.a, on page 233through
procedure.
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
Clear the HP-UNEQ Alarm
233.
procedure.
6.b, on page 233.
procedure for the optical and/or electrical
233