Cisco ONS 15454 Troubleshooting Manual page 116

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1.5.2 Perform a Terminal Loopback on a Source-Node Ethernet Port

Terminal Loopback on a G-Series Port

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

Complete the

Create the Terminal Loopback on a Source-Node Ethernet Port

Connect an optical test set to the port you are testing:

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

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

Cisco ONS 15454 Troubleshooting Guide, R8.5

"Create the Terminal Loopback on a Source-Node Ethernet Port" procedure on page

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

manufacturer.

If you just completed the

procedure on page

1-69, leave the optical test set hooked up to the Ethernet port in the source node.

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

use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are

testing. Both Tx and Rx connect to the same port.

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

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

Processor Subsystem

"1.5.1 Perform a Facility Loopback on a Source-Node Ethernet Port"

General Troubleshooting

November 2009