Cabletron Systems SEHI100TX-22 manual Chapter Troubleshooting, Installation Test

Page 43

CHAPTER 6

TROUBLESHOOTING

This chapter contains instructions for using LANVIEW LEDs to troubleshoot physical layer network problems. It also describes how to reset the SEHI and how to reset the NVRAM switch.

6.1INSTALLATION TEST

After connecting the SEHI to the network, verify that packets pass between all Ethernet devices connected to the SEHI and any other devices connected to the network. If there is a problem with any of the attached devices, check the link as follows:

1.Check that the LNK LED, if applicable, for the port is on. If the LED is off, perform each of the following steps until the LED is on:

a.Check that the 100BASE-TX device at the other end of the twisted pair segment is powered up.

b.Verify that the connector on the twisted pair segment has the proper pinouts. Refer to Chapter 3 for the pin assignments for twisted pair connectors.

c.For the EPIM-100FX or EPIM-100FMB, check that the TX and RX strands are properly connected.

d.Check the cable for continuity. Several tools are available for this test, depending on the media used.

e.Check that the twisted pair segments or fiber optic segments meet cable specifications as described in Chapter 3.

SEHI100TX User’s Guide

6-1

Page 42 Page 44
Image 43
Page 42 Page 44
Contents Intelligent Stackable HUB USER’S Guide Page SEHI100TX User’s Guide DOC Notice Cabletron Software Program License Declaration of Conformity Contents Contents SEHI100TX User’s Guide Vii Contents Viii SEHI100TX User’s Guide Chapter Introduction Using this ManualFollowing conventions are used throughout this document Document ConventionsYour email address Getting HelpRelated Manuals Sehi Overview Chapter Sehi Features and OptionsSehi Features and Options Sehi FeaturesStackable Capabilities Remote Network Management Rack Mounting CapabilitiesOptional Epims Cable Specifications Chapter Installation Requirements SpecificationsHubSTACK Interconnect Cable Requirements UTP Cable Specifications Multimode Fiber Optic Cable Specifications Network Cable Lengths Network Cable Lengths COM Port Requirements Network Port SpecificationsAgency Approvals Operating SpecificationsPower Supply Requirements Environmental RequirementsPhysical Specifications Unpacking the Sehi Chapter InstallationNvram Switch Location PRE-INSTALLATION CheckoutRackmount Installation Tabletop or Shelf InstallationAttaching the Strain-Relief Bracket Rackmount Installation Adequate clearance two inches on either side Powering UP and Stacking the Sehi Repeat steps 3 through 6 until all SEH hubs are connected Installing an Epim Installing AN EpimSEHI100TX User’s Guide Connecting the Sehi to the Network Chapter Connecting to the NetworkConnecting to Network Ports Sehi Network Ports Connecting to an EPIM-100TXRX+ TX+ Position = Not crossed over EPIM-100FX or EPIM-100FMB Port Connecting to an EPIM-100FX or EPIM-100FMBTesting the Installation SEHI100TX User’s Guide Installation Test Chapter TroubleshootingUsing Lanview Using Lanview Epim 1 RCV LED Using the Reset ButtonSetting the Nvram Switch SEHI100TX User’s Guide Chapter Local Management Keyboard Conventions Function Keyboard ConventionsManagement Terminal Setup Console Cable Configuration Management Terminal Setup Parameters Sehi Local Management Accessing Local ManagementAccessing Local Management Feature Selection Screen Feature Selection ScreenCommunity Name Table Screen Community Name Table ScreenManagement fields, excluding IP Address Editing the Community Name Field Configuration Configuration ScreenSetting the IP Address Setting the Subnet Mask Using the Port Enable Override Setting the Default GatewayExiting the Configuration Screen Trap Table Screen Trap Table Screen1 Configuring the Trap Table Snmp Tools Screen Exiting the Trap Table ScreenFollowing sections describe Snmp Tools screen fields Getting Individual OIDs Getting the Next OID Setting an OIDWalking Through OIDs Viewing Multiple OIDsExiting the Snmp Tools Screen Stepping Through OIDsCycling Through OIDs Repeating the Last OIDDevice Statistics Screen Device Statistics ScreenDisplays the number of errors received This command lets the user enable the selected port Using the Disable Port Command Using the Enable Port CommandSelecting the Appropriate Module/Port Exiting the Device Statistics Screen Setting the UPDATE-FREQency FieldEpim Specifications Appendix a Epim SpecificationsEPIM-100TX EPIM-100FX Figure A-3 EPIM-100FMB EPIM-100FMBSEHI100TX User’s Guide Appendix B Image File Download Using OID Strings Setting Unix Workstation AS Tftp Server Standard Local Download Table B-1 OIDs and Settings Numerics IndexIndex-2 SEHI100TX User’s Guide Power Supply Cord
Related manuals
Manual 58 pages 17.82 Kb

SEHI100TX-22 specifications

Cabletron Systems SEHI100TX-22 is a high-performance network interface card that has been designed for reliable data transfer in various networking environments. Ideal for both enterprise and small business applications, the SEHI100TX-22 delivers exceptional performance at a competitive price point.

One of the standout features of the SEHI100TX-22 is its support for 100Base-TX Ethernet standards, which enables high-speed data transmission at rates of up to 100 Mbps. This high throughput capacity makes it an excellent choice for organizations that require swift and efficient data handling, particularly in environments with heavy network traffic.

The card is equipped with two RJ-45 connectors, allowing it to support dual-port configurations. This dual-port setup enhances networking capabilities by enabling fault tolerance and load balancing, ensuring that the network remains operational even in the event of a failure. Moreover, it supports full-duplex operation, allowing for simultaneous bi-directional data transmission, further improving overall network efficiency and performance.

Another significant advantage of the SEHI100TX-22 is its compatibility with a wide range of operating systems and platforms, including Windows, Linux, and various UNIX variants. This versatility ensures that it can be seamlessly integrated into existing network infrastructures without the need for extensive configuration or modification.

In terms of installation and maintenance, the SEHI100TX-22 is user-friendly, thanks to its Plug and Play capability. This feature allows for easy installation; users can simply insert the card into an available PCI slot, and the operating system will automatically recognize and configure the device, minimizing downtime and simplifying the setup process.

Additionally, the SEHI100TX-22 incorporates advanced technologies like Auto-Negotiation, which automatically detects the speed and duplex capabilities of the connected device, thus optimizing the network performance. The card also features various onboard diagnostic LEDs, providing real-time feedback on connection status and data activity, which aids in troubleshooting and performance monitoring.

In summary, the Cabletron Systems SEHI100TX-22 offers a robust set of features that cater to the demands of modern network environments. With its high-speed capabilities, dual-port support, compatibility across multiple operating systems, and user-friendly installation process, it remains a solid choice for organizations looking to enhance their networking performance and reliability.
Top Page Image Contents