Chapter 1 General Troubleshooting

1.10.3 AIS-V on Unused 15310-CL-CTX Card VT Circuits

1.10.3 AIS-V on Unused 15310-CL-CTX Card VT Circuits

Symptom An incomplete circuit path causes an alarm indications signal (AIS).

Table 1-22describes the potential cause of the symptom and the solution.

Table 1-22 AIS-V on Unused 15310-CL-CTX Card VT Circuits

Possible Problem

Solution

 

 

The port on the

An AIS-V indicates that an upstream failure occurred at the VT layer. AIS-V

reporting node is

alarms also occur on VT circuits that are not carrying traffic and on stranded

in-service but a node

bandwidth.

upstream on the circuit

Perform the “Clear AIS-V on Unused Controller Card VT Circuits”

does not have an OC-N

procedure on page 1-65.

port in service.

 

 

 

Clear AIS-V on Unused Controller Card VT Circuits

Step 1 Determine the affected port.

Step 2 Record the node ID, slot number, port number, and VT number.

Step 3 Create a unidirectional VT circuit from the affected port back to itself, such as Source node/Slot 2/Port 2/VT 13 cross connected to Source node/Slot 2/Port 2/VT 13.

Step 4 Uncheck the Bidirectional check box in the circuit creation window.

Step 5 Give the unidirectional VT circuit an easily recognizable name, such as DeleteMe.

Step 6 Display the controller card (15310-CL-CTX or CTX2500) in CTC card view. Click the Maintenance > DS1 tabs.

Step 7 Locate the VT that is reporting the alarm (for example, DS3 #2, DS1 #13).

Step 8 From the Loopback Type list, choose Facility and click Apply.

Step 9 Click Circuits.

Step 10 Find the one-way circuit you created in Step 3. Select the circuit and click Delete.

Step 11 Click Yes in the Delete Confirmation dialog box.

Step 12 In node view, double-click the controller card (15310-CL-CTX or CTX2500). The card view appears. Step 13 Click the Maintenance > DS1 tabs.

Step 14 Locate the VT in the Facility Loopback list.

Step 15 From the Loopback Type list, choose None and then click Apply.

Step 16 Click the Alarm tab and verify that the AIS-V alarms have cleared.

Step 17 Repeat this procedure for all the AIS-V alarms on the controller.

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

1-65

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Cisco Systems ONS 15310-MA, ONS 15310-CL manual AIS-V on Unused 15310-CL-CTX Card VT Circuits, Click Circuits
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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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