Cisco Cisco ONS 15600 SDH, Руководство по устранению неисправностей

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Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 1 General Troubleshooting
1.2.7 Perform a Terminal Loopback on a Destination-Node Optical Port
i.
In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and VC used for
the source dialog box.
j. Click Next .
k.
In the Circuit Creation circuit routing preferences dialog box, leave all defaults. Click Finish .
Step 4 Confirm that the newly created circuit appears on the Circuits tab list as a two-way circuit.
Note
It is normal for the “LPBKTERMINAL (STMN)” condition on page 2-90 to appear during a
loopback setup. The condition clears when you remove the loopback.
Step 5 Create the terminal loopback on the destination port being tested:
a.
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 .
b. In node view, double-click the card that requires the loopback.
c.
Click the Maintenance > Optical > Loopback > Port tab.
d. Select Locked,maintenance from the Admin State column. If multiple ports are available, select
the row appropriate for the desired port.
e.
Select Terminal from the Loopback Type column. If multiple ports are available, select the row
appropriate for the desired port.
f.
Click Apply .
g.
Click Yes in the confirmation dialog box.
Step 6 Complete the “Test and Clear the Optical Terminal Loopback Circuit” procedure on page 1-27 .
Test and Clear the Optical 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. Clear the
terminal loopback from the port:
a.
Double-click the destination-node ASAP card with the terminal loopback.
b. Click the Maintenance > Optical > Loopback > Port tab.
c.
Select None from the Loopback Type column for the port being tested.
d. Select the appropriate state ( Unlocked ; Locked,disabled ; Locked,maintenance ;
Unlocked,automaticInservice ) in the Admin State column for the port being tested.
e.
Click Apply .
f.
Click Yes in the confirmation dialog box.
Step 4
Clear the terminal loopback circuit:
a. Click the Circuits tab.