Sd-L - Cisco NCS 2000 series Troubleshooting Manual

SD-L

DETAILED STEPS
Step 1
Ensure that the fiber connector for the card is completely plugged in. For more information about fiber connections and
card insertion, refer to the Turn Up a Node chapter in the Configuration guide.
Step 2
If the BER threshold is correct and at the expected level, use an optical test set to measure the power level of the line to
ensure it is within guidelines. For specific procedures to use the test set equipment, consult the manufacturer.
Step 3
If the optical power level is good, verify that optical receive levels are within the acceptable range.
Step 4 If receive levels are good, clean the fibers at both ends according to site practice. If no site practice exists, complete the
procedure in the Maintain the Node chapter in the Configuration guide.
Step 5
If the condition does not clear, verify that single-mode fiber is used.
Step 6 If the fiber is of the correct type, verify that a single-mode laser is used at the far-end node.
Step 7
Clean the fiber connectors at both ends for a signal degrade according to site practice.
Step 8 Verify that a single-mode laser is used at the far end.
Step 9
If the problem does not clear, the transmitter at the other end of the optical line could be failing and require replacement.
Refer to the Physical Card Reseating, Resetting, and Replacement, on page 451
If the condition does not clear, log into the Technical Support Website at
for more information or call Cisco TAC (1 800 553-2447).
SD-L
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Object: STMN
An SD Line condition is similar to the
SONET signal and travels on the B2 byte of the SONET overhead.
An SD-L on an Ethernet or OC-N card does not cause a protection switch. If the alarm is reported on a card
that has also undergone a protection switch, the SD BER count continues to accumulate. The condition is
superseded by higher-priority alarms such as the LOF and LOS alarms.
Clear the SD-L Condition
SUMMARY STEPS
1. Complete the
DETAILED STEPS
Complete the Clear the SD (TRUNK) Condition, on page 385
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
386
SD (TRUNK) , on page 385
Clear the SD (TRUNK) Condition, on page 385
section.
http://www.cisco.com/c/en/us/support/index.html
condition. It applies to the line level of the
procedure.
procedure.
Alarm Troubleshooting