Cisco ONS 15454 Troubleshooting Manual page 417

Chapter 2 Alarm Troubleshooting
Warning Use of controls, adjustments, or performing procedures other than those specified could result in
hazardous radiation exposure. Statement 1057
Clear the SF (E1) Condition
Complete the
Step 1
Always use the supplied electrostatic discharge wristband when working with a powered ONS 15454.
Caution
Plug the wristband cable into the ESD jack located on the lower-right edge of the shelf assembly.
Step 2 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call Cisco TAC 1 800 553-2447.
2.7.365 SF (TRUNK)
For information about this alarm or condition, refer to the "Alarm Troubleshooting" chapter in the
Cisco ONS 15454 DWDM Troubleshooting Guide. This guide discusses all DWDM alarms.
2.7.366 SF-L
An SF Line condition is similar 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The condition is superseded by higher-priority alarms such as the
the
Clear the SF-L Condition
Complete the
Step 1
If the condition does not clear, log into the Technical Support Website at
Step 2
http://www.cisco.com/techsupport for more information or call Cisco TAC 1 800 553-2447.
November 2009
"Clear the SD (E1) Condition" procedure on page
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: EC1, OCN
"LOS (EC1)" alarm on page
"Clear the SD (DS1, DS3) Condition" procedure on page
"SF (DS1, DS3)" condition on page
2-162, and the "LOS (OCN)" alarm on page
Cisco ONS 15454 Troubleshooting Guide, R8.5
2.7.365 SF (TRUNK)
2-219.
2-222, but it applies to the
"LOF (EC1)" alarm on page
2-164.
2-218.
2-150,
2-223