Chapter 2 Alarm Troubleshooting

Alarm Procedures

An XTC A to Shelf Slot Communication Failure alarm occurs when the XTC card in Slot 5 (XTC A) has lost communication with another card in the shelf The other card is identified by the Object column in the CTC alarm window..

The CONTBUS-IO-A alarm can appear briefly when the ONS 15327 switches to the standby XTC card. In the case of an XTC protection switch, the alarm clears after the other cards establish communication with the new active XTC card. If the alarm persists, the problem is with the physical path of communication from the XTC to the reporting card. The physical path of communication includes the XTC card, the other card, and the backplane.

Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15327. Plug the wristband cable into the ESD jack located between the top high-speed and XTC slots.

Procedure: Clear the CONTBUS-IO-A Alarm

Step 1 Ensure that the reporting card is physically present in the shelf. Record the card type. Click the Inventory tab to reveal the provisioned type.

If the actual card type and the provisioned card type do not match, see the “MEA (EQPT)” section on page 2-90.

Step 2 If the alarm object is any single card slot other then the standby XTC card in Slot 6, perform a CTC reset of the card. Complete the “Reset a Traffic Card in CTC” procedure on page 2-129.

Step 3 When you reinsert the high-speed card, verify the following LED behavior:

The FAIL LED blinks for approximately 30 seconds.

All LEDs blink once and turn off.

The ACT/STBY LED is green (active).

Step 4 If the alarm object is the standby XTC in Slot 6, perform a soft reset of this card:

a.Right-click the Slot 6 XTC card.

b.Choose Reset Card from the shortcut menu.

c.Click Yes in the confirmation dialog box. Wait ten minutes to verify that the card you reset completely reboots and becomes the standby card.

Step 5 Verify the following LED behavior:

The FAIL LED blinks for approximately 30 seconds.

All LEDs blink once and turn off.

The ACT/STBY LED is green (active).

Step 6 If CONTBUS-IO-A is raised on several cards at once, complete the “Reset the Active XTC Card in CTC” procedure on page 2-129. Verify that the card reboots as the standby card.

Step 7 Verify that the reset is complete and error-free:

No new alarms appear in the Alarms window in CTC.

If you are looking at the physical ONS 15327, the ACT/STBY LED is illuminated.

If you are looking at the node view of the ONS 15327, an amber LED depiction with “Sby” has replaced the white “LDG” depiction on the card in CTC.

Step 8 If the CTC reset does not clear the alarm, complete the “Remove and Reinsert (Reseat) a Card” procedure on page 2-130for the reporting card.

Cisco ONS 15327 Troubleshooting Guide, R3.4

 

March 2004

2-39

 

 

 

Page 145
Image 145
Cisco Systems ONS 15327 manual Procedure Clear the CONTBUS-IO-A Alarm

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.