Chapter 1 General Troubleshooting

Circuits and Timing

Step 4 Uncheck the bidirectional check box in the circuit creation window.

Step 5 Give the unidirectional VT circuit an easily recognizable name, such as “delete me.”

Step 6 Display the XTC-28-3 card in CTC card view. Click the Maintenance > DS1 tabs.

Step 7 Locate the VT that is reporting the alarm (for example, DS3 #2, DS1 #13).

Step 8 From the Loopback Type list, choose Facility (line) and click Apply.

Step 9 Click Circuits.

Step 10 Find the one-way circuit you created in Step 3. Select the circuit and click Delete.

Step 11 Click Yes in the Delete Confirmation dialog box.

Step 12 Display the XTC-28-3 card in CTC card view. Click Maintenance > DS1.

Step 13 Locate the VT in Facility (line) Loopback list.

Step 14 From the Loopback Type list, choose None and then click Apply.

Step 15 Click the Alarm tab and verify that the AIS-V alarms have cleared.

Step 16 Repeat this procedure for all the AIS-V alarms on the XTC-28-3 cards.

1.7.3 Circuit Creation Error with VT1.5 Circuit

Symptom You might receive an “Error while finishing circuit creation. Unable to provision circuit. Unable to create connection object at node-name message when trying to create a VT1.5 circuit in CTC.

Table 1-27describes the potential cause(s) of the symptom and the solution(s).

Table 1-27 Circuit Creation Error with VT1.5 Circuit

Possible Problem

Solution

 

 

You might have run out

The matrix has a maximum capacity of 336 bidirectional VT1.5

of bandwidth on the VT

cross-connects. Certain configurations exhaust VT capacity with less than

cross-connect matrix at

336 bidirectional VT1.5s in a BLSR or less than 224 bidirectional VT1.5s in

the ONS 15327

a UPSR or 1+1 protection group. Refer to the Cisco ONS 15327 Reference

indicated in the error

Manual for more information.

message.

 

 

 

1.7.4 DS3 Card Does Not Report AIS-P From External Equipment

Symptom A DS-3 card does not report STS AIS-P from the external equipment/line side.

Table 1-28describes the potential cause of the symptom and the solution.

Cisco ONS 15327 Troubleshooting Guide, R3.4

1-68

April 2003

 

 

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Cisco Systems ONS 15327 manual Circuit Creation Error with VT1.5 Circuit, Click Circuits

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.