Cisco Systems ONS 15310-CL, ONS 15310-MA 2.7.203 SF-L , 2.7.204 SF-P

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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
Chapter2 Alarm Troubleshooting
2.7.203 SF-L
Warning Use of controls, adjustments, or performing procedures other than those specified could result in
hazardous radiation exposure. Statement 1057
Clear the SF (DS1, DS3) Condition
Step1 Complete the “Clear the SD (DS1, DS3) Condition” procedure on page2-123.
Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS15310-CL
or ONS 15310-MA.
Step2 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call CiscoTAC (1-800-553-2447).
2.7.203 SF-L
Default Severity: NotAlarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: EC1, OCN
An SF Line condition 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The condition is superseded by higher-priority alarms such as 2.7.135 LOF (OCN) or 2.7.150 LOS
(OCN).
Clear the SF-L Condition
Step1 Complete the “Clear the SD-L Condition” procedure on page2-124.
Step2 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call CiscoTAC (1-800-553-2447).
2.7.204 SF-P
Default Severity: NotAlarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: STSMON, STSTRM
An SF Path condition is similar to an “SF-L” condition on page2-126, but it applies to the path (STS)
layer B3 byte of the SONET overhead. It can trigger a protection switch.
The SF-P 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.