Cisco ONS 15454 Troubleshooting Manual page 126

1.5.5 Create a Terminal Loopback on Intermediate-Node Ethernet Ports
Create a Terminal Loopback on Intermediate-Node Ethernet Ports
Connect an optical test set to the port you are testing:
Step 1
Note
a.
b.
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
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
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
a.
b.
c.
Cisco ONS 15454 Troubleshooting Guide, R8.5
1-82
For specific procedures to connect, set up, and use the test set equipment, consult the
manufacturer.
If you just completed the "1.5.4 Create a Facility Loopback on an Intermediate-Node Ethernet Port"
procedure on page 1-78 for the Ethernet circuit, leave the optical test set hooked up to the
intermediate-node port.
If you are starting the current procedure without the optical test set hooked up to the source port,
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.
In node view, click the Circuits tab and click Create.
In the Circuit Creation dialog box, choose the type, such as STS, and number, such as 1.
Click Next.
In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as
G1K1toG1K4.
Leave the Bidirectional check box checked.
Click Next.
In the Circuit Creation source dialog box, select the same Node, card Slot, Port, and STS (or VT)
where the test set is connected.
Click Next.
In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT)
used for the source dialog box.
Click Next.
In the Circuit Creation circuit routing preferences dialog box, leave all defaults. Click Finish.
It is normal for the "LPBKTERMINAL (G1000)" condition on page 2-176
loopback setup. The condition clears when you remove the loopback.
Go to the node view of the intermediate node:
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.
•
In node view, double-click the card that requires the loopback.
Click the Maintenance > Loopback tabs.
Chapter 1 General Troubleshooting
to appear during a
November 2009