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1.5.5 Perform a Facility (Line) Loopback on a Destination-Node MXP/TXP/FC_MR Port
Adjust the test set accordingly.
Step 2
Create the facility (line) loopback on the destination port being tested:
Step 3
a.
b.
c.
d.
e.
f.
g.
Complete the
Step 4
page
Test and Clear the MXP/TXP/FC_MR Facility (Line) Loopback Circuit
If the test set is not already sending traffic, send test traffic on the loopback circuit.
Step 1
Examine the traffic received by the test set. Look for errors or any other signal information that the test
Step 2
set is capable of indicating.
If the test set indicates a good circuit, no further testing is necessary with the facility loopback. Clear the
Step 3
facility (line) loopback from the port:
a.
b.
c.
d.
e.
Complete the
Step 4
Test the MXP/TXP/FC_MR Card
Complete the
Step 1
and replace it with a known-good one.
Cisco ONS 15454 SDH Troubleshooting Guide, R5.0
1-92
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.
Click the Maintenance > Loopback tab.
Select Locked,maintenance from the Admin State column. If this is a multiport card, select the row
appropriate for the desired port.
Select Facility (Line) 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 MXP/TXP/FC_MR Facility (Line) Loopback Circuit" procedure on
1-92.
Click the Maintenance > Loopback tab.
Choose None from the Loopback Type column for the port being tested.
Choose the appropriate state (Unlocked; Locked,disabled; Unlocked,automaticInService) from the
Admin State column for the port being tested.
Click Apply.
Click Yes in the confirmation dialog box.
"Test the MXP/TXP/FC_MR Card" procedure on page
"Physically Replace a Traffic Card" procedure on page 2-271
Chapter 1
General Troubleshooting
1-92.
for the suspected bad card
July 2005
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