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Cabletron Systems SEHI100TX-22 manual Using Lanview

Models: SEHI100TX-22

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Chapter 6: Troubleshooting

2.If the remote station is ready and the LNK LED is on, but no data passes through the port, one of two conditions may exist:

•Network management has disabled the port. Correct this condition by enabling the port through network management.

•The port is segmented either because the collision detector was on for more than 110 ∝s or the SEHI detected more than 32 consecutive collisions on the attached segment. The affected port remains segmented until a good packet is transmitted/received without collisions.

If the LNK LED is still not on, contact Cabletron Systems Technical Support. Refer to Section 1.3 for instructions about getting help.

6.2USING LANVIEW

The SEHI incorporates the Cabletron Systems LANVIEW status monitoring and diagnostics system. LANVIEW LEDs help diagnose problems such as power failure or cable fault. The SEHI includes the following LANVIEW LEDs:

•PWR, for power status

•CPU, for board status

•RCV (Receive), LNK (Link), and CLN (Collision) for Ethernet status

Figure 6-1 provides a quick reference chart of LED locations and deﬁnitions. This chapter also includes a detailed description of each LED.

6-2	SEHI100TX User’s Guide

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Cabletron Systems SEHI100TX-22 manual Using Lanview

Contents

SEHI100TX-22 100BASE-T INTELLIGENT STACKABLE HUB USER’S GUIDE Page SEHI100TX User’s Guide Only qualiﬁed personnel should perform installation proceduresFCC NOTICE DOC NOTICE VCCI NOTICECABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT SEHI100TX User’s GuideEXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY CABLETRON SOFTWARE PROGRAM LICENSEUNITED STATES GOVERNMENT RESTRICTED RIGHTS SEHI100TX User’s GuideDECLARATION OF CONFORMITY SEHI100TX User’s GuideCONTENTS CHAPTER 2 SEHI FEATURES AND OPTIONSINSTALLATION REQUIREMENTS AND SPECIFICATIONSContents CHAPTER 5 CONNECTING TO THE NETWORKTROUBLESHOOTING CHAPTERContents EPIM SPECIFICATIONSAPPENDIX B IMAGE FILE DOWNLOAD USING OID STRINGS APPENDIX ASEHI100TX User’s Guide Contentsviii 1.1 USING THIS MANUAL CHAPTER INTRODUCTION1.2 DOCUMENT CONVENTIONS your email address 1.3 GETTING HELPanonymous SEHI100TX User’s Guide 1.4 RELATED MANUALSChapter 1 Introduction CHAPTER SEHI FEATURES AND OPTIONS 2.1 SEHI OVERVIEW2.2 SEHI FEATURES 2.3 STACKABLE CAPABILITIES RESET ButtonLANVIEW LEDs Local Management2.6 OPTIONAL EPIMS 2.4 RACK MOUNTING CAPABILITIES2.5 REMOTE NETWORK MANAGEMENT 3.1.1 HubSTACK Interconnect Cable Requirements CHAPTER INSTALLATION REQUIREMENTS AND SPECIFICATIONS3.1 CABLE SPECIFICATIONS 3.1.2 UTP Cable Speciﬁcations 3.1.3 Multimode Fiber Optic Cable Speciﬁcations Propagation DelayTemperature Fiber Optic Budget and Propagation Delay3.2 NETWORK CABLE LENGTHS Network Cable Lengths A DTESEHI100TX-22 Repeater B DTE The maximum length of an individual UTP segment may be no3.3 NETWORK PORT SPECIFICATIONS 3.4 COM PORT REQUIREMENTS3.5 OPERATING SPECIFICATIONS 3.5.1 Power Supply Requirements3.5.2 Environmental Requirements 3.5.3 Agency Approvals3.6 PHYSICAL SPECIFICATIONS Dimensions H x W x DWeight Chapter 3 Installation Requirements and SpeciﬁcationsCHAPTER INSTALLATION 4.1 UNPACKING THE SEHI4.2 PRE-INSTALLATION CHECKOUT Rear of Chassis NVRAM Switch located behind gratingProceed to Section 4.5, Powering Up and Stacking the SEHI 4.3 TABLETOP OR SHELF INSTALLATION4.4 RACKMOUNT INSTALLATION Rack mounting the SEHI involves the following Figure 4-4 Installing the Rack Mounting Brackets Rack Mounting the SEHIProceed to Section 4.5, Powering Up and Stacking the SEHI Fasten the SEHI to the equipment rack securely4.5 POWERING UP AND STACKING THE SEHI 7. Repeat steps 3 through 6 until all SEH hubs are connected 4.6 INSTALLING AN EPIM SEHI100TX User’s Guide Chapter 4 Installation4-10 5.1.1 Connecting to Network Ports CHAPTER CONNECTING TO THE NETWORK5.1 CONNECTING THE SEHI TO THE NETWORK 5.1.2 Connecting to an EPIM-100TX 6. TX Figure 5-2 EPIM-100TX Crossover SwitchPosition X crossed over 5.1.3 Connecting to an EPIM-100FX or EPIM-100FMB SEHI100TX User’s Guide 5.2 TESTING THE INSTALLATIONTesting the Installation Chapter 5 Connecting to the Network SEHI100TX User’s GuideCHAPTER TROUBLESHOOTING 6.1 INSTALLATION TEST6.2 USING LANVIEW Blinking indicates a steady LED pulse SEHI100TX-22Flashing indicates an irregular LED pulse 6.3 USING THE RESET BUTTON 6.4 SETTING THE NVRAM SWITCH Chapter 6 Troubleshooting SEHI100TX User’s GuideCHAPTER LOCAL MANAGEMENT 7.1 KEYBOARD CONVENTIONS Chapter 7 Local ManagementSEHI100TX User’s Guide Table 7-1 Keyboard Conventions7.2 MANAGEMENT TERMINAL SETUP Connect the console cable to the SEHI as follows Management Terminal Setup Parameters 7.3 ACCESSING LOCAL MANAGEMENT 3. Press ENTER 7.4 THE FEATURE SELECTION SCREEN Figure 7-3 Feature Selection Screen7.5 THE COMMUNITY NAME TABLE SCREEN Figure 7-4 Community Name Table Screenwrite access to Local Management. Super-User ACCESSThis allows the user to read and write to Local COMMUNITY NAME7.5.1 Editing the Community Name Field 7.6 THE CONFIGURATION SCREEN 7.6.1 Setting the IP Address 7.6.2 Setting the Subnet Mask Consult the Network Administrator prior to setting the Subnet Mask7.6.5 Exiting the Conﬁguration Screen 7.6.3 Setting the Default Gateway7.6.4 Using the Port Enable Override 7.7 THE TRAP TABLE SCREEN 7.7.1 Conﬁguring the Trap Table 7.7.2 Exiting the Trap Table Screen 7.8 THE SNMP TOOLS SCREENThe following sections describe SNMP Tools screen ﬁelds 7.8.1 Getting Individual OIDs 7.8.3 Setting an OID 7.8.2 Getting the Next OID7.8.4 Viewing Multiple OIDs 7.8.5 Walking Through OIDs7.8.6 Stepping Through OIDs 7.8.7 Cycling Through OIDs7.8.8 Repeating the Last OID 7.8.9 Exiting the SNMP Tools Screen7.9 THE DEVICE STATISTICS SCREEN Displays the number of errors received This command lets the user enable the selected port 7.9.1 Selecting the Appropriate Module/Port 7.9.2 Using the ENABLE PORT Command7.9.3 Using the DISABLE PORT Command 7.9.4 Setting the UPDATE-FREQency Field 7.9.5 Exiting the Device Statistics ScreenA.1.1 EPIM-100TX APPENDIX A EPIM SPECIFICATIONSA.1 EPIM SPECIFICATIONS A.1.2 EPIM-100FX Appendix A EPIM SpeciﬁcationsA.1.3 EPIM-100FMB Appendix A EPIM Speciﬁcations SEHI100TX User’s GuideAPPENDIX B IMAGE FILE DOWNLOAD USING OID STRINGS B.1 SETTING UNIX WORKSTATION AS TFTP SERVER B.2 STANDARD LOCAL DOWNLOAD Appendix B Image File Download Using OID Strings Table B-1 OIDs and SettingsSEHI100TX User’s Guide StepINDEX NumericsSEHI100TX User’s Guide Index-1Page POWER SUPPLY CORD GERMANSPANISH FRENCH