Chapter 2 Alarm Troubleshooting

Alarm Procedures

2.6.43DBOSYNC

Major (MJ), Non-Service Affecting (NSA)

The Standby Database Out of Synchronization (DBOSYNC) alarm occurs when the standby XTC “To be Active” database does not synchronize with the “Active” database on the active XTC.

Caution If you reset the active XTC while this alarm is raised, you will lose current provisioning.

Procedure: Clear the DBOSYNC Alarm

Step 1 Save a backup copy of the active XTC database. Complete the “Back Up the Database” procedure in the Cisco ONS 15327 Procedure Guide.

Step 2 Make a minor provisioning change to the active database to see if applying a provisioning change if applying a provisioning change clears the alarm:

a.In node view, click the Provisioning > General tabs.

b.In the Description field, make a small change such as adding a period to the existing entry.

The change causes a database write but does not affect the node state. The write might take up to a minute.

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

2.6.44DS3-MISM

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

The DS-3 Frame Format Mismatch (DS3-MISM) condition indicates a DS-1 frame format mismatch on

asignal transiting the XTC-28-3 card. The condition occurs when the provisioned line type and incoming signal frame format type do no match. For example, if the line type is set to D4 for a DS-1 transiting the XTC-28-3 card, and the incoming signal’s line type format is detected as unframed, then the ONS 15327 reports a DS3-MISM condition.

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.

Note You can only provision DS-1 line frame format on the XTC-28-3 card. DS-3 line format is not provisionable.

Cisco ONS 15327 Troubleshooting Guide, R3.4

 

March 2004

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Cisco Systems ONS 15327 manual 44 DS3-MISM, Procedure Clear the Dbosync 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.