Chapter 2 Alarm Troubleshooting

Alarm Procedures

2.6.102 LOCKOUT-REQ

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

The Lock Out Switch Request on Facility/Equipment (LOCKOUT-REQ) condition occurs when a user initiates a lock out switch request for an OC-N card or a lock out switch request on a UPSR at the path level. A lock out prevents protection switching. Clearing the lock out again allows protection switching and clears the LOCKOUT-REQ condition.

Procedure: Clear the LOCKOUT-REQ Condition

Step 1 Complete the “Clear a UPSR 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).

2.6.103 LOCKOUT-REQ-RING

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

The Lock Out Switch Request Ring (LOCKOUT-REQ-RING) condition occurs when a LOCKOUT RING command is applied to a BLSR to prevent all protection switching on the ring.

Procedure: Clear the LOCKOUT-REQ-RING 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).

2.6.104 LOF (BITS)

Major (MJ), Service Affecting (SA)

The Loss of Frame (LOF) BITS alarm occurs when a port on the XTC BITS input detects an LOF on the incoming BITS timing reference signal. LOF indicates that the receiving ONS 15327 has lost frame delineation in the incoming data.

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.

Note The procedure assumes that the BITS timing reference signal is functioning properly. It also assumes that the alarm is not appearing during node turn up.

Cisco ONS 15327 Troubleshooting Guide, R3.4

 

March 2004

2-77

 

 

 

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Cisco Systems ONS 15327 manual Lockout-Req-Ring, LOF Bits, Procedure Clear the LOCKOUT-REQ 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.