Cisco 15310-MA Anleitung zur Fehlerbehebung PDF herunterladen (Seite 44)

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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, Release 9.0

78-18394-01

Chapter 1 General Troubleshooting

Identify Points of Failure on an Electrical Circuit Path

b. If you are starting the current procedure without the electrical test set connected to the port, use

appropriate cabling to attach the Tx and Rx terminals of the electrical test set to the connectors for

the electrical port you are testing.

Step 2 Adjust the test set accordingly.

Step 3 Use CTC to set up the terminal loopback circuit on the port being tested:

a. Click the Circuits tab and click Create.

b. Give the circuit an easily identifiable name, such as DSNtoDSN.

c. Set circuit Type and Size to the normal preferences, such as STS and STS1.

d. Leave the Bidirectional check box checked and click Next.

e. In the Circuit Source dialog box, fill in the source Node, Slot, Port, and Type where the test set is

connected and click Next.

f. In the Circuit Destination dialog box, fill in the destination Node, Slot, Port, and Type (the electrical

port in the destination node) and click Finish.

Step 4 Confirm that the newly created circuit appears on the Circuits tab list as a two-way circuit.

Note Loopbacks operate only on ports in the OOS,MT administrative state.

Note It is normal for a 2.7.164 LPBKTERMINAL (DS1, DS3) or 2.7.165 LPBKTERMINAL (EC1)

condition 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:

• From the View menu, choose Go To Other Node.

• Choose the node from the drop-down list in the Select Node dialog box and click OK.

b. In node view, double-click the destination node (ONS 15310-CL or ONS 15310-MA).

c. Double-click the correct card, then click the appropriate following tabs:

• Maintenance > DS1 > Loopback

• Maintenance > DS3 > Loopback

• Maintenance > EC1 > Loopback

d. Select OOS,MT from the Admin State column.

e. Select Termin al from the Loopback Type column.

f. Click Apply.

g. Click Yes in the confirmation dialog box.

Step 6 Continue with the “Test the Terminal Loopback Circuit on the Destination-Node Port” procedure on

page 1-9.

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Cisco 15310-MA Anleitung zur Fehlerbehebung Seite 44