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).
SD-L (TRUNK)
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Object: TRUNK
A Signal Degrade (SD) condition on the trunk occurs when the quality of an optical signal to the
MXP_2.5G_10G, TXP_MR_10G, TXP_MR_2.5G, TXP_MR_10E, TXP_MR_10E_C, TXP_MR_10E_L,
TXPP_MR_2.5G, GE-XP, 10GE-XP, and ADM-10G card has bit error rate (BER) on the incoming optical
line that passes the signal degrade threshold. The alarm applies to the card ports and the trunk carrying optical
or electrical signals to the card.
Clear the SD-L (TRUNK) Condition
SUMMARY STEPS
1. Complete the Clear the SD (TRUNK) Condition, on page 385 procedure.
DETAILED STEPS
Complete the Clear the SD (TRUNK) Condition, on page 385 procedure.
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).
SD-P
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Object: STSMON, STSTRM
An SD Path condition is similar to the SD (TRUNK) , on page 385 condition, but it applies to the path (STS)
layer of the SONET overhead. A path or STS-level SD alarm travels on the B3 byte of the SONET overhead.
For path protection protected circuits, the BER threshold is user-provisionable and has a range for SD from
1E–9 dBm to 1E–5 dBm. For BLSR 1+1 and unprotected circuits, the BER threshold value is not
user-provisionable and the error rate is hard-coded to 1E–6 dBm.
On path protection configurations, an SD-P condition causes a switch from the working card to the protect
card at the path (STS) level. On BLSR, 1+1, and on unprotected circuits, an SD-P condition does not cause
switching.
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
387
Alarm Troubleshooting
SD-L (TRUNK)
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