Cabletron Systems SEHI100TX-22 manual Sehi Features and Options

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Chapter 2: SEHI Features and Options

The SEHI100TX-22 operates in a 100BASE-T Ethernet

!network. This product will NOT operate in a 10BASE-T

CAUTION

environment. Connect the SEHI100TX-22 and SEH100TX-22

 

 

only to similar 100BASE-T products.

 

The SEHI100TX-22 supports the EPIM-100TX, EPIM-100FX,

 

and the EPIM-100FMB. No other Cabletron Systems EPIMs

 

operate in this device.

2.2SEHI FEATURES

The SEHI operating features are as follows:

Repeater Functionality

The SEHI fully conforms to the IEEE 802.3u Repeater specifications. The SEHI transmits retimed data packets, regenerates the preamble, extends fragments, and arbitrates collisions.

The SEHI100TX-22 meets IEEE 802.3u Repeater Class I standards. Class I standards allow one repeater between any two Data Terminal Equipment (DTE) devices within a single collision domain (network).

The SEHI automatically partitions problem segments, and reconnects repaired segments to the network. This feature minimizes the impact on network operation resulting from a problem on one segment by isolating the problem segment. Only devices on the problem segment are affected. When the problem is solved, the SEHI automatically reconnects the isolated segment to the network.

Polarity Detection and Correction

Each twisted pair port on the SEHI incorporates a polarity detection and correction feature that allows the SEHI to pass data regardless of the polarity of the twisted pair segment’s receive link.

FLASH EEPROMs

The SEHI uses FLASH EEPROMs that allow the downloading of new and updated firmware using Cabletron Systems SPECTRUM Element Manager/Windows or any device using BOOTP or TFTP protocols.

2-2

SEHI100TX User’s Guide

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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 Using this Manual Chapter IntroductionDocument Conventions Following conventions are used throughout this documentGetting Help Your email addressRelated Manuals Chapter Sehi Features and Options Sehi OverviewSehi Features Sehi Features and OptionsStackable 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 Network Port Specifications COM Port RequirementsOperating Specifications Power Supply RequirementsEnvironmental Requirements Agency ApprovalsPhysical Specifications Chapter Installation Unpacking the SehiPRE-INSTALLATION Checkout Nvram Switch LocationTabletop or Shelf Installation Rackmount 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 Connecting to an EPIM-100TX Sehi Network PortsRX+ TX+ Position = Not crossed over Connecting to an EPIM-100FX or EPIM-100FMB EPIM-100FX or EPIM-100FMB PortTesting the Installation SEHI100TX User’s Guide Chapter Troubleshooting Installation TestUsing Lanview Using Lanview Using the Reset Button Epim 1 RCV LEDSetting the Nvram Switch SEHI100TX User’s Guide Chapter Local Management Keyboard Conventions Keyboard Conventions FunctionManagement Terminal Setup Console Cable Configuration Management Terminal Setup Parameters Accessing Local Management Sehi 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 Screen ConfigurationSetting 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 Exiting the Trap Table Screen Snmp Tools ScreenFollowing sections describe Snmp Tools screen fields Getting Individual OIDs Setting an OID Getting the Next OIDViewing Multiple OIDs Walking Through OIDsStepping Through OIDs Cycling Through OIDsRepeating the Last OID Exiting the Snmp Tools ScreenDevice 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 Setting the UPDATE-FREQency Field Exiting the Device Statistics ScreenEpim Specifications Appendix a Epim SpecificationsEPIM-100TX EPIM-100FX EPIM-100FMB Figure A-3 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 Index NumericsIndex-2 SEHI100TX User’s Guide Power Supply Cord
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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.
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