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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.256 LPBKTERMINAL (G1000)
Clear the LPBKTERMINAL (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.
2.7.256 LPBKTERMINAL (G1000)
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: G1000
A Loopback Terminal condition for the G1000 occurs when a software terminal (inward) loopback is
active for a port on the reporting G-Series Ethernet card.
When a port in terminal (inward) loopback, its outgoing signal is redirected into the receive direction on
the same port, and the externally received signal is ignored. On the G1000-4 card, the outgoing signal is
not transmitted; it is only redirected in the receive direction.
For more information about troubleshooting Ethernet circuits, refer to the “1.5 Troubleshooting
Ethernet Circuit Paths With Loopbacks” section on page 1-68.
Caution CTC permits loopbacks on an in-service (IS) circuit. Loopbacks are Service-Affecting (SA).
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 LPBKTERMINAL (G1000) 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.
2.7.257 LPBKTERMINAL (GE)
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.
2.7.258 LPBKTERMINAL (ISC)
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.
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