1-22
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
78-17235-01
Chapter 1 General Troubleshooting
1.3.6 Perform a Facility Loopback on a Destination-Node OC-N Port
Note
It is normal for a
1.7.158 LPBKFACILITY (OCN)
condition to appear during a loopback setup.
The condition clears when you remove the loopback.
Step 4
Create the facility loopback on the destination port being tested:
a.
Go to the node view of the destination node:
•
From the
View
menu, choose
Go To Other Node
.
•
Choose the node from the drop-down list in the Select Node dialog box and click
OK
.
b.
In node view, double-click the 15310-CL-CTX or CTX2500 with the OC-N port that requires the
loopback.
c.
Click the
Maintenance > Optical > Loopback > Port
tabs.
d.
Select
OOS,MT
from the Admin State column.
e.
Select
Terminal
from the Loopback Type column.
f.
Click
Apply
.
g.
Click
Yes
in the confirmation dialog box.
Note
It is normal for a
1.7.158 LPBKFACILITY (OCN)
condition to appear during loopback
setup. The condition clears when you remove the loopback.
Step 5
Continue with the
“Test the Facility Loopback Circuit” procedure on page 1-22
.
Test the Facility Loopback Circuit
Step 1
If the test set is not already sending traffic, send test traffic on the loopback circuit.
Step 2
Examine the traffic received by the test set. Look for errors or any other signal information that the test
set is capable of indicating.
If the test set indicates a good circuit, no further testing is necessary with the facility loopback:
Step 3
Clear the facility loopback:
a.
Click the
Maintenance > Optical > Loopback > Port
tabs.
b.
Choose
None
from the Loopback Type column for the port being tested.
c.
Choose the appropriate state (IS,AINS; OOS,DSBLD; or OOS,MT) from the Admin State column
for the port being tested.
d.
Click
Apply
.
e.
Click
Yes
in the confirmation dialog box.
Step 4
Clear the facility loopback circuit:
a.
Click the
Circuits
tab.
b.
Choose the loopback circuit being tested.
c.
Click
Delete
.
d.
Click
Yes
in the Delete Circuits dialog box.
