Chapter 1 General Troubleshooting

Identify Points of Failure on a DS-N Circuit Path

Step 4 If the test set indicates a faulty circuit, the problem might be a faulty card.

Step 5 Proceed to the “Test the Destination XTC Card” procedure on page 1-14.

Procedure: Test the Destination XTC Card

Step 1 Replace the suspect card with a good card. See the “Physically Replace a Card” procedure on page 2-130for details.

Step 2 Resend test-set traffic on the loopback circuit with a good card.

Step 3 If the test set indicates a good circuit, the problem is probably the defective card:

a.Return the defective card to Cisco through the returned materials authorization (RMA) process. Call the Cisco TAC.

b.Replace the defective XTC card. See the “Physically Replace a Card” procedure on page 2-130for details.

c.Clear the terminal loopback:

Double-click the DS-N card in the destination node with the terminal loopback.

Click the Maintenance > Loopback tabs.

Select None from the Loopback Type column for the port being tested.

Select the appropriate state (IS, OOS, or OOS_AINS) in the State column for the port being tested.

Click the Apply button.

Click the Yes button in the Confirmation Dialog box.

d.Clear the terminal loopback circuit:

Click the Circuits tab.

Choose the loopback circuit being tested.

Click the Delete button.

Click the Yes button in the Delete Circuits dialog box.

Step 4 Proceed to the “1.2.4 Perform a Hairpin on a Destination Node XTC Port” section on page 1-14.

1.2.4 Perform a Hairpin on a Destination Node XTC Port

The hairpin test is preformed on the XTC card in the destination node. To perform this test, you must also create a bidirectional circuit from the source MIC card to the source OC-N node in the transmit direction. Creating the bidirectional circuit and completing a successful hairpin isolates the possibility that the source and destination OC-N cards, the source and destination XTC cards, or the fiber span is responsible for the faulty circuit. Figure 1-10 on page 1-15shows an example of a hairpin circuit on a destination node XTC card.

Cisco ONS 15327 Troubleshooting Guide, R3.4

1-14

April 2003

 

 

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Cisco Systems ONS 15327 manual Perform a Hairpin on a Destination Node XTC Port, Procedure Test the Destination XTC Card

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.