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Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 14 Alarm Troubleshooting
Alarm Procedures
14.4.78 LPBKDS1FEAC
•
Not Alarmed (NA) (Condition)
A loopback due to FEAC command DS1 (LPBKDS1FEAC) condition on the XTC card means a DS-1
loopback signal is received from the far-end node due to a Far-End Alarm and Control (FEAC)
command. An FEAC command is often used with loopbacks.
Loopback is a commonly used troubleshooting technique. A signal is sent out on a link or part of the
network and returned to the sending device. A troubleshooter can compare the quality of the sent signal
and the returned signal to determine the condition of an isolated circuit. By setting up loopbacks on
various parts of the network and excluding other parts, a troubleshooter can logically narrow down the
source of the problem. For more information about loopbacks, see the
.
Caution
The CTC permits loopbacks on an in-service circuit. This operation is service-affecting.
Note
This is an informational alarm.
14.4.79 LPBKDS3FEAC
•
Not Alarmed (NA) (Condition)
A loopback due to FEAC command DS-3 (LPBKDS3FEAC) condition means an XTC-28-3 loopback
signal is received from the far-end node because of an FEAC command. An FEAC command is often
used with loopbacks. This condition is only reported by the XTC-28-3 card. An XTC-28-3 card both
generates and reports FEAC alarm/conditions.
Loopback is a commonly used troubleshooting technique. A signal is sent out on a link or part of the
network and returned to the sending device. A troubleshooter can compare the quality of the sent signal
and the returned signal to determine the condition of this isolated circuit. By setting up loopbacks on
various parts of the network and excluding other parts, a troubleshooter can logically narrow down the
source of the problem. For more information about loopbacks, see the
.
Caution
The CTC permits loopbacks on an in-service circuit. This operation is service-affecting.
Note
This is an informational alarm.
14.4.80 LPBKFACILITY (DS-N)
•
Not Alarmed (NA) (Condition)
Summary of Contents for ONS 15327
Page 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...