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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
Chapter1 General Troubleshooting
1.6.2 Perform a Terminal Loopback on a Source-Node Ethernet Port
Step4 Confirm that the newly created circuit appears on the Circuits tab list as a two-way circuit.
Note It is normal for the “LPKTERMINAL (CE100T)” condition on page2-104 to appear during a
loopback setup. The condition clears when you remove the loopback.
Step5 Create the terminal loopback on the destination port being tested:
a. In node view, double-click the card that requires the loopback, such as the destination G-Series card
in the source node.
b. Click the Maintenance > Loopback tabs.
c. Select OOS,MT from the Admin State column. If this is a multiport card, select the row appropriate
for the desired port.
d. Select Term ina l from the Loopback Type column. If this is a multiport card, select the row
appropriate for the desired port.
e. Click Apply.
f. Click Yes in the confirmation dialog box.
Step6 Complete the “Test and Clear the Ethernet Terminal Loopback Circuit” procedure on page1-32.
Test and Clear the Ethernet Terminal Loopback Circuit
Step1 If the test set is not already sending traffic, send test traffic on the loopback circuit.
Step2 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.
Step3 If the test set indicates a good circuit, no further testing is necessary on the loopback circuit. Clear the
terminal loopback state on the port:
a. Double-click the CE100T-8 card in the source node with the terminal loopback.
b. Click the Maintenance > Loopback tabs.
c. Select None from the Loopback Type column for the port being tested.
d. Select the appropriate state (IS; OOS,DSBLD; OOS,MT) in the Admin State column for the port
being tested.
e. Click Apply.
f. Click Yes in the confirmation dialog box.
Step4 Clear the terminal loopback circuit:
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.
Step5 Complete the “Test the Ethernet Card” procedure on page 1-33.