Cisco ONS 15454 - Test and Clear the DS-3 E or DS3 XM Destination Port Terminal Loopback Circuit

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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 1 General Troubleshooting
1.2.4 Perform a Terminal Loopback on a Destination Electrical Port (West to East)
Note The DS-3 Admin State is the basis of the DS-1 Derived State.
d. For the DS3 tab, choose OOS,MT from the Admin State column for the port being tested. If this is
a multiport card, select the appropriate row for the port being tested. For the DS1 tab, no state
selection is necessary unless the DS-1 is in service. The loopback/send code cannot be selected for
a DS-1 if the derived state is OOS,DSBLD.
e. Select Terminal from the Loopback Type column. If this is a multiport card, select the row
appropriate for the desired port.
f. Click Apply.
g. Click Yes in the confirmation dialog box.
Step 15 Complete the “Test and Clear the DS-3E or DS3XM Destination Port Terminal Loopback Circuit”
procedure on page 1-26.
Test and Clear the DS-3E or DS3XM Destination Port Terminal Loopback Circuit
Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.
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.
Step 3 If the test set indicates a good circuit, no further testing is necessary on the loopback circuit.
Double-click the electrical card in the destination node with the terminal loopback.
Step 4 Click the Maintenance > DS3 tabs.
Note The DS-3 Admin State is the basis of the DS-1 Derived State.
Step 5 Select None from the Loopback Type column for the port being tested.
Step 6 Select the appropriate state (IS; OOS,DSBLD; OOS,MT; IS,AINS) in the Admin State column for the
port being tested.
Step 7 Click Apply.
Step 8 Click Yes in the confirmation dialog box.
Step 9 Clear the terminal loopback:
a. Click the Circuits tab.
b. Choose the loopback circuit being tested.
c. Click Delete.
d. Click Yes in the Delete Circuits dialog box. Do not check any check boxes.
Step 10 Complete the “Test the Destination Electrical Card” procedure on page 1-27.