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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.241 LPBKFACILITY (ESCON)
SONET Logical Object: EC1
A Loopback Facility condition on an EC-1 port occurs when a software facility (line) loopback is active
for a port on the reporting EC1/EC1-12 or DS3/EC1-48 card.
For information about troubleshooting electrical circuits with loopbacks, refer to the
“1.2 Troubleshooting Electrical Circuit Paths With Loopbacks” section on page 1-9.
Caution CTC permits loopbacks on an in-service (IS) circuit. Loopbacks are Service-Affecting (SA).
Clear the LPBKFACILITY (EC1) 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.
2.7.241 LPBKFACILITY (ESCON)
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.
2.7.242 LPBKFACILITY (FC)
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.
2.7.243 LPBKFACILITY (FCMR)
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: FCMR
A Loopback Facility for FCMR condition occurs when a facility loopback is provisioned on an
FC_MR-4 card.
For information about troubleshooting these circuits with loopbacks, refer to the “1.6 Troubleshooting
FC_MR Circuit Paths With Loopbacks” section on page 1-94.
Clear the LPBKFACILITY (FCMR) Condition
Step 1 Complete the “Clear an MXP, TXP, or FC_MR-4 Card Loopback Circuit” 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.
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