Cisco ONS 15310-CL Troubleshooting Manual page 70

1.6.4 Perform a Terminal Loopback on Intermediate-Node OC-N Ports
Note
a. If you just completed the
procedure on page 1-32
port.
If you are starting the current procedure without the test set hooked up to the source port, use
b.
appropriate cabling to attach the Tx and Rx terminals of the 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.)
Step 2
Use CTC to set up the terminal loopback on the test port:
Step 3
In node view, click the Circuits tab and click Create.
a.
In the Circuit Creation dialog box, choose the type, such as STS, and number, such as 1.
b.
Click Next.
c.
In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as
d.
C1C1toC1C4.
Leave the Bidirectional check box checked.
e.
Click Next.
f.
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.
Click Next.
h.
In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT)
i.
used for the source dialog box.
Click Next.
j.
In the Circuit Creation circuit routing preferences dialog box, leave all defaults. Click Finish.
k.
Confirm that the newly created circuit appears on the Circuits tab list and that it is described in the Dir
Step 4
column as a two-way circuit.
Note
Create the terminal loopback on the destination port being tested:
Step 5
Go to the node view of the intermediate node:
a.
•
•
In node view, double-click the 15310-CL-CTX or CTX2500 that requires the loopback.
b.
c. Click the Maintenance > Optical > Loopback > Port tabs.
Select OOS,MT from the Admin State column. If this is a multiport card, select the row appropriate
d.
for the desired port.
e. Select Terminal from the Loopback Type column. If this is a multiport card, select the row
appropriate for the desired port.
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
1-36
For specific procedures to connect, set up, and use the test set equipment, consult the
manufacturer.
"1.6.3 Perform a Facility Loopback on an Intermediate-Node OC-N Port"
for the Ethernet circuit, leave the test set hooked up to the intermediate-node
It is normal for the "LPBKTERMINAL (OCN)" condition on page 1-106
loopback setup. The condition clears when you remove the loopback.
Choose View > Go To Other Node from the menu bar.
Choose the node from the drop-down list in the Select Node dialog box and click OK.
Chapter 1 General Troubleshooting
to appear during a
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