Cisco 15310-MA Průvodce řešením problémů stáhnout pdf (Strana 70)

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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

Troubleshooting Ethernet Circuit Paths With Loopbacks

Note For specific procedures to connect, set up, and use the test set equipment, consult the

manufacturer.

a. If you just completed the “1.6.1 Perform a Facility Loopback on a Source-Node Ethernet Port”

procedure on page 1-31, leave the test set hooked up to the Ethernet port in the source node.

b. If you are starting the current procedure without the test set hooked up to the source port, use

appropriate cabling to attach the Tx and Rx terminals of the test set to the port you are testing. Both

Tx and Rx connect to the same port.

Step 2 Adjust the test set accordingly. (Refer to manufacturer instructions for test-set use.)

Step 3 Use CTC to set up the terminal loopback on the test port:

a. In node view, click the Circuits tab and click Create.

b. In the Circuit Creation dialog box, choose the type, such as STS, and number, such as 1.

c. Click Next.

d. In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as

C1C1toC1C2.

e. Leave the Bidirectional check box checked.

f. Click Next.

g. In the Circuit Creation source dialog box, select the same Node, card Slot, Port, and STS (or VT)

where the test set is connected.

h. Click Next.

i. In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT)

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 “LPKTERMINAL (CE100T, CEMR)” condition on page 2-111 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. 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 Termin al 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.

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Cisco 15310-MA Průvodce řešením problémů Strana 70