Chapter 2 Alarm Troubleshooting

Alarm Procedures

2.6.116 LPBKFACILITY (OC-N)

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

An OC-N Loopback Facility condition occurs when a software facility loopback is active for a port on the reporting card.

For more information about loopbacks, see the “Identify Points of Failure on an OC-N Circuit Path” section on page 1-21.

Procedure: Clear the LPBKFACILITY (OC-N) Condition

Step 1 Complete the “Clear a Loopback” procedure on page 2-128.

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).

Caution Before performing a facility loopback on an OC-N card, make sure the card contains at least two DCC paths to the node where the card is installed. A second DCC path provides a nonlooped path to log into the node after the loopback is applied, thus enabling you to remove the facility loopback. Ensuring a second DCC is not necessary if you are directly connected to the ONS 15327 containing the loopback OC-N.

2.6.117 LPBKTERMINAL (DS-N, OC-N)

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

ADS-N or OC-N Loopback Terminal (LPBKTERMINAL) condition occurs when a software facility loopback is active for a port on the reporting card.

For more information about loopbacks, see the “Network Troubleshooting Tests” section on page 1-2.

Note Terminal loopback is not supported at the DS1 level for the XTC-28-3 card.

Procedure: Clear the LPBKTERMINAL (DS-N, OC-N) Condition

Step 1 Complete the “Clear a Loopback” procedure on page 2-128.

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).

Cisco ONS 15327 Troubleshooting Guide, R3.4

 

March 2004

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Cisco Systems ONS 15327 manual Lpbkterminal DS-N, OC-N, Procedure Clear the Lpbkfacility OC-N Condition

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.