Chapter 2 Alarm Troubleshooting

Alarm Procedures

2.6.88FRCDSWTOSEC

Not Alarmed (NA), Non-Service Affecting (NSA)

The Force Switch to Second Timing Source (FRCDSWTOSEC) condition occurs when the user issues a Force command to switch to the second timing source.

Note FRCDSWTOSEC is an informational condition. It does not require troubleshooting.

2.6.89FRCDSWTOTHIRD

Not Alarmed (NA), Non-Service Affecting (NSA)

The Force Switch to Third Timing Source (FRCDSWTOTHIRD) condition occurs when the user issues a Force command to switch to the third timing source.

Note FRCDSWTOTHIRD is an informational condition. It does not require troubleshooting.

2.6.90FRNGSYNC

Not Alarmed (NA), Non-Service Affecting (NSA)

The Free-Running Synchronization Mode (FRNGSYNC) alarm occurs when the reporting ONS 15327 is in free run synchronization mode. External timing sources have been disabled and the node is using its internal clock, or the ONS 15327 has lost its designated BITS timing source. After the 24-hour holdover period expires, timing slips might begin to occur on an ONS 15327 relying on an internal clock.

Procedure: Clear the FRNGSYNC Alarm

Step 1 If the ONS 15327 is configured to operate from its internal clock, disregard the FRNGSYNC alarm.

Step 2 If the ONS 15327 is configured to operate from an external timing source, verify that the BITS timing source is valid. Common problems with a BITS timing source include reversed wiring and bad timing cards.

Step 3 If the BITS source is valid, clear alarms related to the failures of the primary and secondary reference sources, such as a SYNCPRI alarm (see page 2-117)and a SYNCSEC alarm (see page 2-117).

Step 4 If the alarm does not clear, log onto http://www.cisco.com/tac for more information or call TAC to report

aservice-affecting problem (1-800-553-2447).

2.6.91FSTSYNC

Minor (MN), Non-Service Affecting (NSA)

A Fast Start Synchronization mode (FSTSYNC) alarm occurs when the ONS 15327 is choosing a new timing reference. The previous timing reference has failed.

Cisco ONS 15327 Troubleshooting Guide, R3.4

 

March 2004

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Cisco Systems ONS 15327 manual Frcdswtosec, Frcdswtothird, Fstsync, Procedure Clear the Frngsync Alarm

ONS 15327 specifications

Cisco Systems ONS 15327 is a high-performance optical networking solution tailored for service providers and enterprises looking to enhance their optical communication infrastructure. This versatile platform is recognized for its robust performance, scalability, and flexibility, making it suitable for a wide array of applications ranging from broadband access to metropolitan area networking.

One of the standout features of the ONS 15327 is its ability to handle multiple data types over a single platform. It supports a rich array of protocols, including Ethernet and SONET/SDH, allowing service providers to deliver a diverse portfolio of services to their customers. This multiservice capability simplifies the network architecture, reducing operational complexity and costs.

The ONS 15327 is designed with a modular architecture, which enables operators to customize and scale their network as demand grows. It supports a variety of card options for different media types, wavelengths, and capacity requirements. This modularity not only facilitates straightforward upgrades but also allows for efficient network management.

In terms of technology, the ONS 15327 leverages dense wavelength division multiplexing (DWDM) capabilities to maximize the utilization of available fiber bandwidth. This allows for an impressive increase in transmission capacity without the need for additional fiber installations, making it a cost-effective solution for expanding networks.

Another significant characteristic of the Cisco ONS 15327 is its advanced performance monitoring and management features. Built-in diagnostic tools provide real-time visibility into network performance, enabling prompt identification and troubleshooting of potential issues. This proactive approach to network management enhances service reliability and customer satisfaction.

Security is also paramount in the ONS 15327. The platform integrates various security features and protocols to protect the data traversing the network, ensuring compliance with industry standards and safeguarding sensitive information.

Furthermore, the equipment is designed for easy integration into existing infrastructures. Its compatibility with Cisco’s broader networking solutions allows for seamless interconnection with routers, switches, and other devices, facilitating comprehensive network solutions.

In conclusion, Cisco Systems ONS 15327 stands out as a powerful optical networking platform that combines versatility, scalability, and advanced management features. Its ability to support various protocols and harness optical technologies makes it an essential tool for organizations aiming to optimize their telecommunications infrastructure while minimizing costs and complexity.