Cisco 15310-MA Guia de Resolução de Problemas descarregar pdf (Página 81)

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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

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box. Do not check any check boxes.

Step 7 Complete the “1.6.6 Perform a Facility Loopback on a Destination-Node Ethernet Port” procedure on

page 1-45.

1.6.6 Perform a Facility Loopback on a Destination-Node Ethernet Port

You perform a facility loopback test at the destination port to determine whether this local port is the

source of circuit trouble.

Caution Performing a loopback on an in-service circuit is service-affecting.

Note Facility loopbacks require on-site personnel.

Complete the “Create the Facility Loopback on a Destination-Node Ethernet Port” procedure on

page 1-45.

Create the Facility Loopback on a Destination-Node Ethernet Port

Step 1 Connect a test set to the CE100T-8 card that you are testing:

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

manufacturer.

a. If you just completed the “1.6.5 Perform a Terminal Loopback on Intermediate-Node OC-N Ports”

section on page 1-42, leave the test set hooked up to the source-node port.

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 hairpin circuit 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

C1C1toC1C5.

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.

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