3Com NETBuilder II Chapter Troubleshooting and Maintenance, Troubleshooting Startup Problems

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Chapter 2

Troubleshooting and Maintenance

This chapter describes how to troubleshoot and maintain the HSSI module.

If you are unable to resolve a problem with your HSSI module, you will need to contact a customer service representative. Refer to Appendix C, “Technical Support,” for information about who to contact in your area.

Troubleshooting Startup Problems

The following symptom indicates a self-test failure at startup. For complete information on configurable firmware parameters, refer to the NETBuilder Family Bridge/Router Guide, Version 6.2 or later.

Symptom

The following message is displayed:

HSSI Interface: Self Tests failed - slot X

The value of X can be 1 through 4 or 1 through 8, depending on whether you have a 4-slot or an 8-slot NETBuilder chassis.

Action

Check to see if the card is inserted completely into the NETBuilder II chassis.

Maintaining the HSSI Module

This section describes preventive maintenance you can take and how to replace the HSSI module.

Preventive Maintenance

3Com recommends the following procedures for preventive maintenance:

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Observe the guidelines in Appendix A of the NETBuilder II Base System Installation Guide for minimum and maximum electrical and environmental requirements.

Keep the area around the NETBuilder II base system clean and avoid accumulated dust.

Allow sufficient air space around the NETBuilder II base system for proper ventilation. This protects the HSSI module from excessively high temperatures.

Observe ESD guidelines whenever handling the HSSI module.

Refer to Chapter 5 of the NETBuilder II Base System Installation Guide for preventive maintenance tips that apply to the entire system.

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Contents Member of the NETBuilder family NETBuilder II Hssi Module Installation Guide3Com Corporation Bayfront Plaza Santa Clara California If you are looking for Turn to How to Use This GuideBefore You Begin ConventionsSpecial Messages Inspect the Hssi module for shipping damage Chapter InstallationBefore Installing the Hssi Module Observe appropriate ESD precautionsVerify that you have received all the contents Select an I/O slot in which to install the Hssi module Installing the Hssi ModuleHand tighten the captive screws. Do not use a screwdriver Lock the board in the slotCabling the Hssi Module for Network Connection Hotswap Internal Loopback testMaintaining the Hssi Module Chapter Troubleshooting and MaintenanceTroubleshooting Startup Problems Preventive MaintenanceReplacing the Hssi Module LED Normal Color Indicates Behavior Appendix a Hssi Module ComponentsLEDs Attribute Description ConnectorsLocation Connector Number of pins Purpose SpecificationsType Y Type 3 to access the MAC address of the Hssi moduleAppendix B Displaying the MAC Address Displaying the MAC Address Appendix C Technical Support Automated Fax ServiceOn-line Technical Services 3Com Product Information ServiceAdapter-Specific Bulletin Board System BBS Warranty InformationAdditional Technical Support Services 3Com Documentation on CD-ROMReturning Products for Repair Before Contacting Your Network SupplierAdditional 3Com Support Services Preparing Your Equipment for Shipment Equipment Warranties and Repair ServicesEurope and Africa Technical Support

NETBuilder II specifications

The 3Com NETBuilder II is a robust networking solution designed to meet the requirements of enterprise-level organizations. Launched in the late 1990s, this platform was celebrated for its advanced features and high-performance capabilities. As a modular, multi-layer switch, it provides flexible configurations that allow businesses to scale their networks according to changing demands.

One of the standout features of the NETBuilder II is its support for both Layer 2 and Layer 3 switching. This dual functionality enables efficient data handling at various layers of the OSI model, allowing for improved network efficiency and reduced latency. With support for both Ethernet and Fast Ethernet, the device delivers high-speed connectivity to enhance data transmission rates across the network.

The NETBuilder II is equipped with a modular architecture, offering interchangeable line cards that facilitate customization according to specific network needs. This design allows organizations to start with basic configurations and expand their systems by adding additional modules as required. This modularity is particularly beneficial for organizations anticipating growth or changes in their networking requirements.

Another essential technology integrated into the NETBuilder II is Virtual LAN (VLAN) support. VLANs provide the ability to segment network traffic effectively, which enhances security and optimizes performance. By segregating traffic, organizations can minimize broadcast domains and improve overall network efficiency while maintaining strict control over data access.

Furthermore, the device is designed with advanced routing capabilities, supporting protocols like RIP, OSPF, and PIM. These routing features are crucial for organizations that need to manage complex data flows and ensure efficient path selection for data packets, ultimately contributing to a more reliable network infrastructure.

In terms of management, the NETBuilder II offers support for SNMP, simplifying the monitoring and management of network devices. This feature enables IT administrators to track performance, troubleshoot issues in real-time, and maintain optimal operational conditions.

The 3Com NETBuilder II also boasts a solid reputation for reliability and durability, making it suitable for mission-critical applications in various industries. Its robust nature ensures continuous uptime and service reliability, which is paramount in today's increasingly connected business landscape.

Overall, the 3Com NETBuilder II is an influential piece of networking technology. Its combination of modularity, advanced routing features, VLAN support, and high-performance capabilities make it a key asset for enterprises looking to build a scalable, efficient, and reliable network infrastructure.
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