Logical Object: EQPT
An SF Line condition is similar to the SD (TRUNK) , on page 385 condition, but it applies to the line layer
B2 overhead byte of the SONET signal. It can trigger a protection switch.
The SF-L condition clears when the BER level falls to one-tenth of the threshold level that triggered the
condition. A BER increase is sometimes caused by a physical fiber problem, including a poor fiber connection,
a bend in the fiber that exceeds the permitted bend radius, or a bad fiber splice.
The condition is superseded by higher-priority alarms such as the LOF and LOS alarms.
Clear the SF-L 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).
SF-L (TRUNK)
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Object: TRUNK
A Signal Fail (SF) condition is raised on the trunk when the quality of an incoming 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, or ADM-10G card has high BER due to bent or degraded fiber connected to the trunk, on
the incoming optical line that passes the signal fail threshold. The alarm applies to the card ports and the trunk
carrying optical or electrical signals to the card.
The SF-L condition monitors the incoming BER and is triggered when the BER surpasses the default range.
Clear the SF-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.
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
391
Alarm Troubleshooting
Clear the SF-L Condition
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