Chapter 1 General Troubleshooting

Identify Points of Failure on an OC-N Circuit Path

Figure 1-13 Cross-Connect Loopback on a Source OC-N Port

 

Source

Intermediate

ONS Node

ONS Node

 

 

 

 

 

 

 

 

 

 

OC-N

XC

 

OC-N

OC-N

XC

OC-N

 

 

 

 

 

 

 

 

 

 

Test Set

Destination

ONS Node

OC-N XC OC-N

90643

Step 1 Connect an optical test set to the port you are testing:

a.If you just completed the “1.3.1 Perform a Facility Loopback on a Source-NodeOC-N Port” section on page 1-21, leave the optical test set hooked up to the OC-N port in the source node.

b.If you are starting the current procedure without the optical test set hooked up to the OC-N port, use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are testing. Both Tx and Rx connect to the same port.

c.Adjust the test set accordingly.

Step 2 Use CTC to put the circuit being tested out of service:

a.In node view, double-click the card where the test set is connected. The card view appears.

b.In card view, click the Provisioning > Line tabs.

c.Choose OOS or OOS_MT from the Status column for the port being tested.

d.Click Apply.

e.Click Yes in the confirmation dialog box.

Step 3 Use CTC to set up the cross-connect loopback on the circuit being tested:

a.In card view, click the Provisioning > SONET STS tabs.

b.Click the check box in the XC Loopback column for the port being tested.

c.Click Apply.

d.Click Yes in the confirmation dialog box.

Step 4 Proceed to the “Test the Cross-Connect Loopback Circuit” procedure on page 1-24.

Procedure: Test the Cross-Connect Loopback Circuit

Step 1 If the test set is not already sending traffic, send test 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.

Step 3 If the test set indicates a good circuit, no further testing is necessary with the cross-connect:

a.Clear the cross-connect loopback:

In card view, click the Provisioning > SONET STS tabs.

Uncheck the check box in the XC Loopback column for the circuit being tested.

Cisco ONS 15327 Troubleshooting Guide, R3.4

1-24

April 2003

 

 

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Cisco Systems ONS 15327 Procedure Test the Cross-Connect Loopback Circuit, Cross-Connect Loopback on a Source OC-N Port

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.