Chapter 1 General Troubleshooting

Identify Points of Failure on a DS-N Circuit Path

Figure 1-8 Hairpin Circuit on a Source Node XTC Port

Test Set A

DS-N

DS-N

ONS 15327

 

Source

Hairpin

XTC

 

MIC

OC-N

ONS 15327

Destination

XTC

OC-N

MIC

76188

Note An XTC card is required to operate the ONS 15327 and can be used in a redundant or nonredundant configuration.

Procedure: Create the Hairpin on the Source Node Port

Step 1 Connect an electrical test set to the port you are testing.

•If you just completed the “Perform a Facility Loopback on a Source XTC Port” procedure on page 1-5, leave the electrical test set hooked up to the MIC port.

•If you are starting the current procedure without the electrical test set hooked up to the MIC port, use appropriate cabling to attach the Tx and Rx terminals of the electrical test set to the MIC connectors for the port you are testing. The Tx and Rx terminals connect to the same port.

Adjust the test set accordingly.

Step 2 Use CTC to set up the hairpin on the port being tested:

a.Click the Circuits tab and click the Create button.

b.Give the circuit an easily identifiable name, such as Hairpin1.

c.Set the circuit Type and Size to the normal preferences.

d.Uncheck the Bidirectional check box and click the Next button.

e.In the Circuit Source dialog box, select the same Node, card Slot, Port, and Type where the test set is connected and click the Next button.

f.In the Circuit Destination dialog box, use the same Node, card Slot, Port, and Type used for the Circuit Source dialog box and click the Finish button.

Step 3 Confirm that the newly created circuit appears on the Circuits tab list as a one-way circuit.

Step 4 Proceed to the “Test the Hairpin Circuit” procedure on page 1-9.

Procedure: Test the Hairpin Circuit

Step 1 If the test set is not already sending traffic, send test-set traffic on the loopback circuit.

Step 2 Examine the test traffic received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Cisco ONS 15327 Troubleshooting Guide, R3.4

 

April 2003

1-9

 

 

 

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Cisco Systems ONS 15327 manual Procedure Create the Hairpin on the Source Node Port, Procedure Test the Hairpin Circuit
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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.
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