Cisco ONS 15454 - 2.7.237 LPBKFACILITY (CEMR, CE1000, CE100 T); Clear the LPBKFACILITY (CEMR, CE1000, CE100 T) Condition; 2.7.238 LPBKFACILITY (DS1, DS3)

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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.237 LPBKFACILITY (CEMR, CE1000, CE100T)
Note LPBKDS3FEAC-CMD is an informational condition and does not require troubleshooting.
2.7.237 LPBKFACILITY (CEMR, CE1000, CE100T)
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: CEMR, CE1000, CE100T
A Loopback Facility condition on a CE-Series port occurs when a software facility (line) loopback is
active for a port on the card.
Note For information about troubleshooting Ethernet circuits with loopbacks, refer to the
“1.5 Troubleshooting Ethernet Circuit Paths With Loopbacks” section on page 1-68.
Note For more information about Ethernet cards, refer to the Cisco ONS 15454 and
Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide.
Clear the LPBKFACILITY (CEMR, CE1000, CE100T) Condition
Step 1 Complete the “Clear Other Electrical Card or Ethernet Card Loopbacks” procedure on page 2-277.
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.
2.7.238 LPBKFACILITY (DS1, DS3)
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: DS1, DS3
A Loopback Facility condition on a DS-1 or DS-3 port occurs when a software facility (line) loopback
is active for the reporting DS3XM-6 card, DS3XM-12 card, a DS1/E1-56 card operating in All DS1
mode, or a DS3/EC1-48 card.
For information about troubleshooting electrical circuits with loopbacks, refer to the
“1.5 Troubleshooting Ethernet Circuit Paths With Loopbacks” section on page 1-68.
Note CTC permits loopbacks to be performed on an in-service (IS) circuit. Performing a loopback is
Service-Affecting (SA). If you did not perform a lockout or Force switch to protect traffic, the
LPBKFACILITY condition can be accompanied by a more serious alarms such as the “LOS (DS1)”
alarm on page 2-158, or the “LOS (DS3)” alarm on page 2-159.