Chapter 2 Alarm Troubleshooting

2.7.234 SYNCTHIRD

2.7.234 SYNCTHIRD

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

SONET Logical Objects: EXT-SREF, NE-SREF

A Loss of Timing on Third Reference alarm occurs when the ONS 15310-CL or ONS 15310-MA loses the third timing source (reference 3). If SYNCTHIRD occurs and the system uses an internal reference for source three, the 15310-CL-CTX card or CTX2500 card could have failed. The system often reports either the “FRNGSYNC” condition on page 2-66or the “HLDOVRSYNC” condition on page 2-73after a SYNCTHIRD alarm.

Clear the SYNCTHIRD Alarm

Step 1 In node view, click the Provisioning > Timing > General tabs.

Step 2 Verify that the current configuration of REF-3 for the NE Reference. For more information about references, refer to the “Turn Up Node” chapter in the Cisco ONS 15310-CL and Cisco ONS 15310-MA Procedure Guide.

Step 3 If the third timing source is a BITS input, complete the “Clear the LOS (BITS) Alarm” procedure on page 2-93.

Step 4 If the third timing source is an incoming port on the ONS 15310-CL or ONS 15310-MA, complete the “Clear the LOS (OCN) Alarm” procedure on page 2-99.

Step 5 If the third timing source uses internal timing, complete the “Soft- or Hard-Reset a Controller Card” procedure on page 2-153.

Step 6 If the reset card has not rebooted successfully, or the alarm has not cleared, call Cisco TAC (1-800-553-2447).

2.7.235 SYSBOOT

Default Severity: Major (MJ), Service-Affecting (SA)

SONET Logical Object: NE

The System Reboot alarm indicates that new software is booting on the 15310-CL-CTX or CTX2500 card. No action is required. The alarm clears when all cards finish rebooting the new software. The reboot takes up to 30 minutes.

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.

Note SYSBOOT is an informational alarm. It only requires troubleshooting if it does not clear.

2.7.236 TIM

Default Severity: Critical (CR), Service-Affecting (SA)

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

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Cisco Systems ONS 15310-MA, ONS 15310-CL manual Sysboot, 236 TIM, Clear the Syncthird Alarm, 137

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.