Chapter 1 General Troubleshooting

1.6.3 Perform a Facility Loopback on an Intermediate-Node OC-N Port

Create a Facility Loopback on an Intermediate-Node OC-N Port

Step 1 Connect a test set to the OC-N port you are testing. 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.

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

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

Step 3 Use CTC to set up the facility loopback on the OC-N 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 C1CtoC1C3.

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. Step 5 Create the facility loopback on the destination port being tested:

a.Go to the node view of the intermediate 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 intermediate-node 15310-CL-CTX or CTX2500 card where you will perform the loopback.

c.Click the Maintenance > Optical > Loopback > Port tabs.

d.Select OOS,MT from the Admin State column. If this is a multiport card, select the row appropriate for the desired port.

e.Select Facility from the Loopback Type column. If this is a multiport card, select the row appropriate for the desired port.

f.Click Apply.

g.Click Yes in the confirmation dialog box.

Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0

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Cisco Systems ONS 15310-CL, ONS 15310-MA manual Create a Facility Loopback on an Intermediate-Node OC-N Port
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ONS 15310-CL, ONS 15310-MA specifications

Cisco Systems has long been a leader in networking and telecommunications technology, and among its impressive lineup of products, the Cisco ONS 15310 series stands out as an essential solution for optical networking. This series includes models such as the ONS 15310-MA, ONS 15310-CL, and ONS 15310-CA, each designed to meet the diverse needs of service providers and enterprises seeking to enhance their optical transport networks.

The Cisco ONS 15310-MA is an advanced multi-service platform designed for metropolitan area networks. It facilitates the seamless transport of data, voice, and video over optical networks. One of its main features is its ability to support a variety of interfaces, including Ethernet, SONET/SDH, and Wavelength Division Multiplexing (WDM), allowing users to integrate multiple services into a single platform. Additionally, the ONS 15310-MA supports advanced traffic management and Quality of Service (QoS) features to prioritize critical applications and ensure consistent performance.

The ONS 15310-CL variant is tailored for more specific applications, providing enhanced capabilities aimed at delivering carrier-grade services. It features a robust architecture that accommodates high-capacity traffic without compromising reliability. This model emphasizes low power consumption and a compact design, making it suitable for deployment in space-constrained environments. The ONS 15310-CL also supports a wide range of optical interfaces, making it highly flexible for various network configurations.

In terms of technologies, the Cisco ONS 15310 series leverages Optical Transport Network (OTN) capabilities, providing high efficiency and greater bandwidth utilization. OTN technology enables efficient error correction and adds resilience to the network through its built-in protection mechanisms. Furthermore, the series supports seamless integration with existing IP/MPLS networks, creating a cohesive infrastructure as organizations evolve their networking requirements.

One of the defining characteristics of the ONS 15310 series is its focus on scalability. Network operators can start with a modest deployment and gradually expand capacity as demand grows. This adaptability is complemented by Cisco's comprehensive management and monitoring tools, providing operators with real-time insights into network performance and facilitating proactive management.

In conclusion, the Cisco ONS 15310-MA and ONS 15310-CL models represent sophisticated solutions for modern optical networks. With their versatile features, advanced technologies, and robust design, they empower service providers and enterprises to build resilient, high-capacity networks that meet the demands of today’s data-driven world.
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