Clear The Lpbkfacility (Ds1, Ds3) Condition; Lpbkfacility (Ec1); Clear The Lpbkfacility (Ec1) Condition; Lpbkfacility (Ocn) - Cisco ONS 15310-CL Troubleshooting Manual

1.7.157 LPBKFACILITY (EC1)

Clear the LPBKFACILITY (DS1, DS3) 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).
1.7.157 LPBKFACILITY (EC1)
A Loopback Facility condition for an EC-1 port occurs when a software facility (line) loopback is active
for a port on the reporting 15310-CL-CTX, DS1-28/DS3-EC1-3, or DS1-84/DS3-EC1-3 card.
For information about troubleshooting optical circuits with loopbacks, refer to the
Troubleshooting Tests" section on page
CTC permits loopbacks to be performed on an in-service (IS) circuit. Loopbacks are
Caution
Service-Affecting (SA).

Clear the LPBKFACILITY (EC1) 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).

1.7.158 LPBKFACILITY (OCN)

A Loopback Facility condition for an OC-N signal occurs when a software facility (line) loopback is
active for an OC-3 or OC-12 port on the 15310-CL-CTX or CTX2500.
For information about troubleshooting optical circuits with loopbacks, refer to the
of Failure on an OC-N Circuit Path" section on page
"1.1.1 Facility Loopback" section on page
OC-N facility loopbacks do not transmit an AIS in the direction away from the loopback. Instead of AIS,
Note
a continuance of the signal transmitted to the loopback is provided.
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
1-104
"Clear a DS-3 or DS-1 Port Loopback Circuit" procedure on page
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: EC1
"Clear an EC-1 Port Loopback" procedure on page
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: OCN
1-2.
1-158.
1-13. Facility loopbacks are described in the
1-2.
Chapter 1 Alarm Troubleshooting
1-157.
"1.1 Network
"1.3 Identify Points
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