Chapter 2 Alarm Troubleshooting

2.7.77 FE-DS1-SNGLLOS

2.7.77 FE-DS1-SNGLLOS

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

SONET Logical Object: DS3

The Far-End Single DS-1 LOS condition occurs when a single DS-1 signal is lost on a far-end

15310-CL-CTX, ONS 15310-MA DS1-28/DS3-EC1-3, or ONS 15310-MA DS1-84/DS3-EC1-3 DS-1 port (within a DS3). Signal loss also causes the “LOS (OCN)” alarm on page 2-98.

Clear the FE-DS1-SNGLLOS Condition

Step 1 To troubleshoot an FE condition, determine which node and card link directly to the card reporting the FE condition.

Step 2 Log into the node that links directly to the port reporting the FE condition.

Step 3 Clear the main alarm. Refer to the appropriate alarm section in this chapter for troubleshooting instructions.

Step 4 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).

2.7.78 FE-DS3-NSA

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

SONET Logical Object: DS3

The Far End DS-3 Equipment Failure Non-Service-Affecting (SA) condition occurs when a far-end 15310-CL-CTX, ONS 15310-MA DS1-28/DS3-EC1-3, or ONS 15310-MA DS1-84/DS3-EC1-3 DS-1 port equipment failure occurs in C-bit line type mode, but does not affect service because the port is protected and traffic is able to switch to the protect port.

The prefix FE means the main alarm is occurring at the far-end node and not at the node reporting FE-DS3-NSA alarm. Troubleshoot the FE condition by troubleshooting the main alarm at its source. The secondary alarms or conditions clear when the main alarm clears.

Clear the FE-DS3-NSA Condition

Step 1 To troubleshoot an FE condition, determine which node and port link directly to the card reporting the FE alarm.

Step 2 Log into the node that links directly to the port reporting the FE condition.

Step 3 Clear the main alarm. Refer to the appropriate alarm section in this chapter for troubleshooting instructions.

Step 4 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).

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

2-60

Page 169 Page 171
Page 170
Image 170
Cisco Systems ONS 15310-CL, ONS 15310-MA manual Clear the FE-DS1-SNGLLOS Condition, Clear the FE-DS3-NSA Condition
Page 169 Page 171

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