Chapter 2 Alarm Troubleshooting

Alarm Procedures

2.6.31CARLOSS (EQPT)

Major (MJ), Service Affecting (SA)

A Carrier Loss on the LAN Equipment (CARLOSS) alarm occurs when the ONS 15327 and the workstation hosting CTC do not have a TCP/IP connection. The problem involves the LAN or data circuit used by the RJ-45 (LAN) connector on the XTC card. The CARLOSS alarm does not involve an Ethernet circuit connected to an Ethernet port. The problem is in the connection and not CTC or the ONS 15327.

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 CARLOSS (EQPT) Alarm

Step 1 Verify connectivity by pinging the ONS 15327 that is reporting the alarm:

a.If you are using a Microsoft Windows operating system, from the Start Menu choose Programs > Accessories > Command Prompt.

b.If you are using a Sun Solaris operating system, from the Common Desktop Environment (CDE) click the Personal Application tab and click Terminal.

c.For both the Sun and Microsoft operating systems, at the prompt type:

ping [ONS 15327 IP address]

For example, ping 192.1.0.2.

If the workstation has connectivity to the ONS 15327, it shows a “reply from [IP Address]” after the ping. If the workstation does not have connectivity, a “Request timed out” message appears.

Step 2 If the ping is successful, an active TCP/IP connection exists. Restart CTC:

a.Exit from CTC.

b.Reopen the browser.

c.Log into CTC.

Step 3 Verify that the straight-through (Category 5) LAN cable is properly connected and attached to the correct port.

Step 4 If the straight-through (Category 5) LAN cable is properly connected and attached to the port, verify that the cable connects the card to another Ethernet device and is not misconnected to an OC-N card.

Step 5 If you are unable to establish connectivity, replace the straight-through cable with a new known-good cable.

Step 6 If you are unable to establish connectivity, perform standard network or LAN diagnostics. For example, trace the IP route, verify cable continuity, and troubleshoot any routers between the node and CTC.

Cisco ONS 15327 Troubleshooting Guide, R3.4

 

March 2004

2-31

 

 

 

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Cisco Systems ONS 15327 manual Procedure Clear the Carloss Eqpt 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.