Cisco ONS 15454 Troubleshooting Manual page 95

Chapter 1 General Troubleshooting
Note
If you just completed the
a.
procedure on page
If you are starting the current procedure without the optical test set hooked up to the source port,
b.
use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are
testing. Both Tx and Rx connect to the same port.
Adjust the test set accordingly. (Refer to manufacturer instructions for test-set use.)
c.
Use CTC to set up the terminal loopback on the test port:
Step 2
a. In node view, click the Circuits tab and click Create.
b. In the Circuit Creation dialog box, choose the type, such as STS, and number, such as 1.
c. Click Next.
In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as
d.
OCN1toOCN2.
e. Leave the Bidirectional check box checked.
f. Click Next.
In the Circuit Creation source dialog box, select the same Node, card Slot, Port, and STS (or VT)
g.
where the test set is connected.
h. Click Next.
i. In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT)
used for the source dialog box.
j. Click Next.
k. In the Circuit Creation circuit routing preferences dialog box, leave all defaults. Click Finish.
Step 3 Confirm that the newly created circuit appears on the Circuits tab list as a two-way circuit.
Note
Create the terminal loopback on the destination port being tested:
Step 4
In node view, double-click the card that requires the loopback, such as the destination OC-N card in
a.
the source node.
Click the Maintenance > Loopback > Port tabs.
b.
Select OOS,MT from the Admin State column. If this is a multiport card, select the row appropriate
c.
for the desired port.
Select Terminal from the Loopback Type column. If this is a multiport card, select the row
d.
appropriate for the desired port.
Click Apply.
e.
Click Yes in the confirmation dialog box.
f.
November 2009
For specific procedures to connect, set up, and use the test set equipment, consult the
manufacturer.
"1.4.1 Perform a Facility Loopback on a Source-Node Optical Port"
1-48, leave the optical test set hooked up to the OC-N port in the source node.
It is normal for the "LPBKTERMINAL (OCN)" condition on page 2-177
loopback setup. The condition clears when you remove the loopback.
1.4.2 Perform a Terminal Loopback on a Source-Node Optical Port
Cisco ONS 15454 Troubleshooting Guide, R8.5
to appear during a
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