Chapter 2 Alarm Troubleshooting

2.7.56 EOC

Note For more information about the ML-100T-8 Ethernet card, refer to the Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide.

Clear the ENCAP-MISMATCH-P Alarm

Step 1 Ensure that the correct line type is in use on the receive card by completing the following steps:

a.In node view, double-click the receive ML-100T-8 card to display the card view.

b.Click the Provisioning > Card tabs.

c.In the Mode drop-down list, ensure that the same mode (GFP or HDLC) is selected. If it is not, choose it and click Apply.

Step 2 Ensure that the correct line type is in use on the transmit card and that it is identical to the receiving card by completing the following steps:

a.In node view, double-click the transmit ML-100T-8 card to display the card view.

b.Click the Provisioning > Card tabs.

c.In the Mode drop-down list, ensure that the same mode (GFP or HDLC) is selected. If it is not, choose it and click Apply.

Step 3 If the alarm does not clear, use the CLI to ensure that the remaining settings are correctly configured on the ML-100T-8 card:

•Encapsulation

•CRC size

•Scrambling state

To open the interface, click the IOS tab and click Open IOS Command Line Interface (CLI). Refer to the Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration

Guide entries on all three of these topics to obtain the full configuration command sequences.

Step 4 If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport for more information or call Cisco TAC (1-800-553-2447) in order to report a Service-Affecting (SA) problem.

2.7.56 EOC

Default Severity: Minor (MN), Non-Service-Affecting (NSA)

SONET Logical Object: OCN

The SONET DCC Termination Failure alarm occurs when the ONS 15310-CL or ONS 15310-MA loses its DCC. The section data communication channel (SDCC) overhead consists of three bytes, D1 through D3, in the SONET overhead. The bytes convey information about Operation, Administration, Maintenance, and Provisioning (OAM&P). The node uses the DCC on the SONET section layer to communicate network management information.

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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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