Cabletron Systems SEHI100TX manual Chapter Sehi Features and Options, Sehi Overview

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CHAPTER 2

SEHI FEATURES AND OPTIONS

This chapter provides an overview of the SEHI and contains sections detailing features and available options.

NOTE

The terms SEHI (Stackable Ethernet Hub with Intelligence) and SEH (Stackable Ethernet Hub) are used throughout this manual when describing the features and functions of the SEHI100TX-22 and the SEH100TX-22.

FRONT VIEW

HubSTACK 100BASE-TX HUB WITH LANVIEW®

SEHI100TX-22

RCV

LNK

A

22 21 20 19 18 17 16 15 14 13 12

22X

21X

20X

19X

18X

17X

16X

15X

14X

13X

12X

PWR

CPU

RCV

RESET

CLN

LNK

E

COM

11 10 9 8 7

6

5

4

3

2

1

1

5X

4X

3X

2X

1X

11X

10X

9X

8X

7X

6X

EPIM 1

Port Status LEDs

Network Ports 1-22

System LEDs

EPIM Slot

COM Port

RESET Button

SEHI100TX-22100BASE-T HUB WITH LANVIEW®
	OUT
	SEH100TX INTERCONNECT
SN	IN
SN
NET.	18
ADD.	18
	1511

Power Supply

Interconnect Bus "OUT" Port

Interconnect Bus "IN" Port

REAR VIEW

Figure 2-1 The SEHI100TX-22

2.1SEHI OVERVIEW

The SEHI100TX-22 is an intelligent repeating hub providing 22 RJ45 ports and one Ethernet Port Interface Module (EPIM) port on the front panel for network connections. The SEHI has two rear panel HubSTACK Interconnect Bus ports for stackable connections. The SEHI100TX-22 is designed to manage the Cabletron Systems non-intelligent stackable hub, the SEH100TX-22.

SEHI100TX User’s Guide

2-1

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Contents Intelligent Stackable HUB USER’S Guide SEHI100TX User’s Guide FCC Notice Cabletron SYSTEMS, INC. Program License Agreement United States Government Restricted Rights Contents Contents SEHI100TX User’s Guide Vii Using this Manual Chapter IntroductionDocument Conventions Following conventions are used throughout this documentGetting Help Related ManualsChapter Sehi Features and Options Sehi OverviewSehi Features Sehi Features and OptionsStackable Capabilities Rack Mounting Capabilities Remote Network ManagementOptional 100BASE-TX and 100BASE-FX EPIMs Chapter Installation Requirements Specifications Cable SpecificationsHubSTACK Interconnect Cable Requirements UTP Cable Speciﬁcations Multimode Speciﬁcations for the EPIM-100FX Network Cable Lengths Network Port Specifications COM Port RequirementsOperating Specifications Power Supply RequirementsEnvironmental Requirements Physical Specifications Agency ApprovalsChapter Installation Unpacking the SehiPRE-INSTALLATION Checkout Nvram Switch LocationTabletop or Shelf Installation SEHI100TX-22Rackmount Installation Screws Strain-Relief BracketRackmount Installation Installing the Sehi in the Rack Powering UP and Stacking the Sehi Repeat steps 3 through 6 until all SEH hubs are connected Installing the EPIM-100TX or the EPIM-100FX Install an EPIM-100TX or an EPIM-100FX as followsChapter Connecting to the Network Connecting the Sehi to the NetworkConnecting to Network Ports Connecting a UTP Segment to an EPIM-100TX Sehi Network PortsPosition X crossed over RX+ TX+ Position = Not crossed over Connecting a Fiber Segment to the EPIM-100FX EPIM-100FX PortTesting the Installation Chapter Troubleshooting Installation TestUsing Lanview Using Lanview Using the Reset Button Epim 1 RCV LEDSetting the Nvram Switch Chapter Local Management Local Management Keyboard Conventions Keyboard Conventions FunctionManagement Terminal Setup Console Cable Conﬁguration Management Terminal Setup Parameters Accessing Local Management Sehi Local ManagementFeature Selection Screen Feature Selection ScreenCommunity Name Table Screen Community Name Table ScreenEditing the Community Name Field Configuration Screen ConfigurationDisplays the IP address of the Sehi Setting the IP Address Setting the Subnet MaskSetting the Default Gateway Using the Port Enable OverrideExiting the Conﬁguration Screen Trap Table Screen1 Conﬁguring the Trap Table Exiting the Trap Table ScreenSnmp Tools Screen Snmp Tools ScreenLets you retrieve MIB objects using Snmp protocol Setting an OID Getting Individual OIDsGetting the Next OID Viewing Multiple OIDs Walking Through OIDsStepping Through OIDs Cycling Through OIDsExiting the Snmp Tools Screen Device Statistics Screen Device Statistics ScreenDisplays the number of errors due to misaligned packets Selecting the Appropriate Module/Port Module Number SequenceUsing the Enable Port Command Using the Disable Port CommandExiting the Device Statistics Screen Appendix a Epim Specifications Epim SpecificationsEPIM-100TX EPIM-100FX Appendix B Image File Download Using Oids Setting UP a Unix Workstation AS a Tftp Server Standard Local Download Table B-1 OIDs and Settings Index NumericsIndex-2 Power Supply Cord