Chapter 2 Alarm Troubleshooting

Alarm Procedures

2.6.82 FEPRLF

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

The Far End Protection Line Failure (FEPRLF) alarm occurs when an APS channel SF condition (see page 2-106)occurs on the protect card coming into the node.

Note The FEPRLF alarm occurs only on the ONS 15327 when bidirectional protection is used on optical (traffic) cards in a 1+1 configuration or BLSR configuration.

Procedure: Clear the FEPRLF Alarm on a BLSR

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

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

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

Step 4 If the alarm does not clear, log onto http://www.cisco.com/tac for more information or call TAC (1-800-553-2447).

2.6.83FORCED-REQ

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

The Force Switch Request on Facility or Equipment (FORCED-REQ) condition occurs when you enter the FORCE command on a span or card to force traffic from a working card or working span to a protection card or protection span or vice versa. You do not need to clear the condition if you want the force switch to remain.

Procedure: Clear the FORCED-REQ Condition

Step 1 Complete the “Clear a BLSR Span Lock Out” procedure on page 2-127.

Step 2 If the condition does not clear, log onto http://www.cisco.com/tac for more information or call TAC (1-800-553-2447).

2.6.84FORCED-REQ-RING

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

The Force Switch Request Ring (FORCED-REQ-RING) condition applies to optical trunk cards when the FORCE RING command is applied to two-fiber BLSRs to move traffic from working to protect.

Cisco ONS 15327 Troubleshooting Guide, R3.4

 

March 2004

2-69

 

 

 

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Cisco Systems ONS 15327 manual Forced-Req-Ring, Procedure Clear the Feprlf Alarm on a Blsr

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.