Chapter 2 Alarm Troubleshooting

2.7.70 FAILTOSW-PATH

2.7.70 FAILTOSW-PATH

Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)

SONET Logical Objects: STSMON, VTMON

The Fail to Switch to Protection Path condition occurs when the circuit does not switch from the working path to the protect path on a path protection. Common causes of the FAILTOSW-PATH condition include a missing or defective protect port, a lockout set on one of the path protection nodes, or path-level alarms that would cause a path protection switch to fail including the “AIS-P” condition on page 2-19, the “LOP-P” alarm on page 2-91, the “SD-P” condition on page 2-124, the “SF-P” condition on page 2-126, and the “UNEQ-P” alarm on page 2-142.

The “LOF (OCN)” alarm on page 2-88, the “LOS (OCN)” alarm on page 2-98, the “SD-L” condition on page 2-123, or the “SF-L” condition on page 2-126can also occur on the failed path.

Clear the FAILTOSW-PATH Condition in a Path Protection Configuration

Step 1 Look up and clear the higher priority alarm. If the “AIS-P” condition on page 2-19, the “LOP-P” alarm on page 2-91, the “UNEQ-P” alarm on page 2-142, the “SF-P” condition on page 2-126, the “SD-P” condition on page 2-124, the “LOF (OCN)” alarm on page 2-88, the “LOS (OCN)” alarm on page 2-98, the “SD-L” condition on page 2-123, or the “SF-L” condition on page 2-126are also occurring on the reporting port, complete the applicable alarm clearing procedure.

Step 2 If the condition 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).

2.7.71 FAN

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

SONET Logical Object: FAN

The Fan Failure alarm indicates a problem with the internal fan of the ONS 15310-CL or

ONS 15310-MA. When the fan is not fully functional, the temperature of the node can rise above its normal operating range.

This alarm is not user-serviceable. 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 to report a Service-Affecting (SA) problem (1-800-553-2447).

2.7.72 FAN-DEGRADE

Default Severity: Major (MJ), Non-Service-Affecting (NSA)

SONET Logical Object: FAN

The Partial Fan Failure Speed Control Degradation alarm occurs if fan speed for one of the fans in the ONS 15310-CL or ONS 15310-MA shelf falls under 500 RPM when read by a tachometry counter.

For an ONS 15310-CL, this alarm is not user-serviceable. For an ONS 15310-MA, refer to the fan tray replacement procedure located in the Cisco ONS 15310-CL and Cisco ONS 15310-MA Procedure Guide.

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

2-57

Page 166 Page 168
Page 167
Image 167
Cisco Systems ONS 15310-MA, ONS 15310-CL manual Failtosw-Path, 71 FAN, Fan-Degrade
Page 166 Page 168

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.
Top Page Image Contents