Cisco NCS 2000 series Troubleshoot Manual

If the condition does not clear, log into the Technical Support Website at http://www.cisco.com/c/en/us/support/index.html
for more information or call Cisco TAC (1 800 553-2447).
SHELF-COMM-FAIL
Default Severity: Major (MJ), Service-Affecting (SA)
Logical Object: SHELF
The Shelf Communication Failure alarm applies to optical equipment when an NC shelf is unable to
communicate with an SS shelf. Typically this occurs when there is a fiber disconnection. But the alarm can
also occur if an SS shelf is resetting.
Clear the SHELF-COMM-FAIL Alarm
SUMMARY STEPS
1. Determine whether an SS shelf controller is being reset. If it is being reset, you must wait for the shelf to
reset for this alarm to clear.
2. If the alarm does not clear or if no shelf is being reset, perform the following:
DETAILED STEPS
Step 1 Determine whether an SS shelf controller is being reset. If it is being reset, you must wait for the shelf to reset for this
alarm to clear.
Step 2 If the alarm does not clear or if no shelf is being reset, perform the following:
a) NCS 2006 as NC shelf—Check the cabling between the MSM ports of NC shelf and SS shelf controller. Correct it
if necessary. Check if the External Connection Unit in the NC and SS shelf is installed correctly.
If the alarm does not get cleared, you need to report a Service-Affecting (SA) problem. Log into the Technical Support
Website at http://www.cisco.com/c/en/us/support/index.html for more information or log into http://www.cisco.com/c/
en/us/support/web/tsd-cisco-worldwide-contacts.html to obtain a directory of toll-free Technical Support numbers for
your country.
SH-IL-VAR-DEG-HIGH
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
Logical Object: OTS
The Switch Insertion Loss Variation Degrade High alarm occurs as the OSC-CSM card optical switch ages
and slowly increases its insertion loss. This alarm indicates that the insertion loss has crossed the high degrade
threshold. The card must eventually be replaced.
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
394
Alarm Troubleshooting
SHELF-COMM-FAIL

Cisco NCS 2000 series Specifications

General

Brand	Cisco
Model	NCS 2000 series
Category	Network Hardware
Language	English