Test And Clear The Terminal (Inward) Loopback Circuit On The Destination Ds-N Port - Cisco ONS 15454 Troubleshooting Manual

1.3.4 Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West to East)
Click Finish.
Step 11
Confirm that the newly created circuit appears in the Dir column as a 2-way circuit.
Step 12
Note
Note
Step 13 Create the terminal (inward) loopback on the destination port being tested:
a.
b.
c.
d.
e.
f.
g.
Step 14 Complete the
procedure on page

Test and Clear the Terminal (Inward) Loopback Circuit on the Destination DS-N Port

If the test set is not already sending traffic, send test traffic on the loopback circuit.
Step 1
Step 2 Examine the test traffic being 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 on the loopback circuit.
Step 3
Double-click the DS-N card in the destination node with the terminal loopback.
Depending upon the card type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or
Step 4
Maintenance > DS3 tabs.
Select None from the Loopback Type column for the port being tested.
Step 5
Select the appropriate state (IS, OOS, OOS_AINS) in the State column for the port being tested.
Step 6
Click Apply.
Step 7
Click Yes in the confirmation dialog box.
Step 8
Cisco ONS 15454 Troubleshooting Guide, R4.6
1-20
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.
DS-3 terminal loopbacks do not transmit a DS-3 AIS (see the
the direction away from the loopback. Instead of a DS-3 AIS, a continuance of the signal
transmitted to the loopback is provided.
Go to the node view of the destination 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, such as the DS-N card in the
destination node.
Depending upon the card type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs,
or Maintenance > DS3 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 (Inward) Loopback Circuit on the Destination DS-N Port"
1-20.
Chapter 1 General Troubleshooting
"AIS" condition on page 2-21) in
November 2004