Cisco ONS 15454 Troubleshooting Manual page 52

1.5.5 Create a Terminal (Inward) Loopback on Intermediate-Node OC-N, G-Series, MXP, or TXP Ports
i.
j.
Confirm that the newly created circuit appears on the Circuits tab list and that it is described in the Dir
Step 3
column as a 2-way circuit.
Note
Step 4 Create the terminal loopback on the destination port being tested:
a.
b.
c.
d.
e.
f.
g.
Complete the
Step 5
Test and Clear the Terminal Loopback Circuit
This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM
Note
cards.
If the test set is not already sending traffic, send test traffic on the loopback circuit.
Step 1
Examine the test traffic being received by the test set. Look for errors or any other signal information
Step 2
that the test set is capable of indicating.
If the test set indicates a good circuit, no further testing is necessary on the loopback circuit. Clear the
Step 3
terminal loopback from the port:
a.
b.
c.
d.
e.
f.
Cisco ONS 15454 Troubleshooting Guide, R4.6
1-52
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 Finish.
It is normal for the "LPBKTERMINAL (DS1, DS3, EC-1-12, OCN)" condition on page 2-144
to appear during a 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.
Select OOS_MT from the State column. If this is a multiport card, select the row appropriate for
the desired port.
Select Terminal (Inward) from the Loopback Type column. If this is a multiport card, select the
row appropriate for the desired port.
Click Apply.
Click Yes in the confirmation dialog box.
"Test and Clear the Terminal Loopback Circuit" procedure on page
Double-click the intermediate node card with the terminal loopback to open the card view.
Click the Maintenance > Loopback tabs.
Select None from the Loopback Type column for the port being tested.
Select the appropriate state (IS, OOS, OOS_AINS) in the State column for the port being tested.
Click Apply.
Click Yes in the confirmation dialog box.
Chapter 1 General Troubleshooting
1-52.
November 2004