Chapter 1 General Troubleshooting

Identify Points of Failure on an OC-N Circuit Path

Click Apply.

Click Yes in the confirmation dialog.

b.Proceed to the “Perform a Terminal Loopback on a Source-NodeOC-N Port” procedure on page 1-27.

Step 4 If the test set indicates a faulty circuit, there might be a problem with the cross-connect card.

Step 5 Proceed to the “Test the Standby XTC Card” procedure on page 1-25.

Procedure: Test the Standby XTC Card

Step 1 Perform a reset on the active XTC card:

a.Determine which cross-connect card is active. On both the physical node and the CTC window, the active XTC has a green ACT LED, and the standby XTC has an amber SBY LED.

b.Position the cursor over the active cross-connect card.

c.Right-click and choose Reset from the shortcut menu.

d.On the Resetting Card dialog box, click Yes. After 20 to 40 seconds, a “lost node connection, changing to network view” message is displayed.

e.Click OK. On the network view map, the node where you reset the XTC is gray.

f.After the node icon turns green (within 1 to 2 minutes), double-click it. On the shelf graphic, observe the following:

The previous standby XTC displays a green ACT LED.

The previous active XTC LEDs go through the following LED sequence: NP (card not present), Ldg (software is loading), amber SBY LED (XTC is in standby mode).

The LEDs should complete this sequence within 5 to 10 minutes.

Step 2 Resend test traffic on the loopback circuit.

The test traffic now travels through the alternate cross-connect card.

Step 3 If the test set indicates a faulty circuit, assume that the cross-connect card is not causing the problem:

a.Clear the cross-connect loopback circuit:

Click the Circuits tab.

Choose the cross-connect loopback circuit being tested.

Click the Delete button.

Click the Yes button in the Delete Circuits dialog box.

Confirm that the cross-connect loopback circuit is deleted from the Circuits tab list.

b.Proceed to “Perform a Terminal Loopback on a Source-NodeOC-N Port” procedure on page 1-27.

Step 4 If the test set indicates a good circuit, the problem might be a defective cross-connect card.

Step 5 Proceed to the “Retest the Original XTC Card” procedure on page 1-26.

Cisco ONS 15327 Troubleshooting Guide, R3.4

 

April 2003

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Cisco Systems ONS 15327 Procedure Test the Standby XTC Card, Proceed to the Retest the Original XTC Card procedure on

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.