Chapter 2 Alarm Troubleshooting

Alarm Procedures

Step 2 If the condition does not clear, replace the active OC-N card that is reporting the higher priority alarm. Complete the “Physically Replace a Card” procedure on page 2-130. Replacing the active OC-N card that is reporting the higher priority alarm allows traffic to revert to the active slot. Reverting frees the standby card, which can then take over traffic from the card reporting the lower priority alarm and the FAILTOSW-PATH alarm.

Note When replacing a card with an identical type of card, no additional CTC provisioning is required.

Step 3 If the condition does not clear, log onto http://www.cisco.com/tac for more information or call TAC (1-800-553-2447).

2.6.60FAILTOSWR

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

The Fail to Switch to Protection Ring (FAILTOSWR) condition occurs when a ring switch did not complete because of internal APS problems.

FAILTOSWR clears when one of the following actions occurs: a higher priority event, such as an external switch command occurs, the next ring switch succeeds, or the cause of the APS switch [such as an SD condition (see page 2-104)or an SF condition (see page 2-106)] clears.

Warning Invisible laser radiation might be emitted from the end of the unterminated fiber cable or connector. Do not stare into the beam directly with optical instruments. Viewing the laser output with certain optical instruments (for example, eye loupes, magnifiers, and microscopes) within a distance of 100

mmmight pose an eye hazard. Use of controls or adjustments or performance of procedures other than those specified might result in hazardous radiation exposure.

Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15327. Plug the wristband cable into the ESD jack located between the top high-speed and XTC slots.

Procedure: Clear the FAILTOSWR Condition in a BLSR Configuration

Step 1 Perform the EXERCISE RING command on the reporting card:

a.Click the Provisioning > BLSR tabs.

b.Click the row of the affected ring under the West Switch column.

c.Select Exercise Ring in the drop-down menu.

Step 2 If the condition does not clear, in node view, click View > Go to Network View.

Step 3 Look for alarms on OC-N cards that make up the ring or span and troubleshoot these alarms.

Step 4 If clearing other alarms does not clear the FAILTOSWR condition, log into the near-end node and click the Maintenance > BLSR tabs.

Cisco ONS 15327 Troubleshooting Guide, R3.4

2-56

March 2004

 

 

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Cisco Systems ONS 15327 manual Failtoswr, Click the Provisioning Blsr tabs
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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.
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