Clear The Lpbkfacility (Ocn) Condition; Lpkterminal (Ce100T); Clear The Lpbkterminal (Ce100T) Condition; Lpbkterminal (Ds1, Ds3) - Cisco ONS 15310-CL Troubleshooting Manual

Chapter 1 Alarm Troubleshooting
CTC permits loopbacks to be performed on an in-service (IS) circuit. Loopbacks are
Caution
Service-Affecting (SA).
Before performing a facility (line) loopback on an OC-3 or OC-12 port, ensure the card contains at least
Note
two DCC paths to the node where the card is installed. A second DCC path provides a nonlooped path
to log into the node after the loopback is applied, thus enabling you to remove the facility loopback.
Ensuring a second DCC is not necessary if you are directly connected to the ONS 15310-CL or
ONS 15310-MA containing the loopback OC-3 or OC-12.

Clear the LPBKFACILITY (OCN) 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).

1.7.159 LPKTERMINAL (CE100T)

A Loopback Terminal condition on a CE-100T-8 port occurs when a software terminal loopback is active
for a port on the card.
For information about troubleshooting optical circuits with loopbacks, refer to the
Troubleshooting Tests" section on page

Clear the LPBKTERMINAL (CE100T) 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).

1.7.160 LPBKTERMINAL (DS1, DS3)

A Loopback Terminal condition for a DS-1 or DS-3 signal occurs when a software terminal (inward)
loopback is active for a DS1 or DS3 port on a 15310-CL-CTX, DS1-28/DS3-EC1-3, or
DS1-84/DS3-EC1-3 card. DS-1 and DS-3 terminal loopbacks do not typically return an AIS signal.
78-17235-01
"Clear an OC-N Port Facility or Terminal Loopback Circuit" procedure on page
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: CE100T
"Clear an Ethernet Card Loopback Circuit" procedure on page
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: DS1, DS3
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