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Cabletron Systems 2H33-37R, 2H23-50R Troubleshooting, Flashing indicates an LED ﬂashing randomly

Models: 2H23-50R 2H33-37R

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Chapter 4: Troubleshooting

Chapter 4: Troubleshooting

NOTE

TX	TX		Link	Speed
RX	RX
	CONN 3	CONN 3	1
	CONN 2	CONN 2
	CONN 1	CONN 1
	10		100	CONN 3
			1
2H33-37R			PWR	CONN 1
2H33-37R	RESET		CPU	CONN 1
	COM
	PWR	CPU		2286-36A

Figure 4-2 LANVIEW LEDs (2H33-37R)

The terms flashing, blinking, and solid used in the following tables indicate the following:

Flashing indicates an LED ﬂashing randomly.

Blinking indicates an LED is ﬂashing at a steady rate (approximately 50% on, 50% off).

Solid indicates a steady LED light. No pulsing.

4-2	2H23-50R/2H33-37R User’s Guide

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Cabletron Systems manual Troubleshooting, Flashing indicates an LED ﬂashing randomly, 2H23-50R/2H33-37R User’s Guide

Contents

2H23-50R/2H33-37R SmartSwitch 2100 User’s Guide 9032286-04CONN CONN CONNPage 2H23-50R/2H33-37R User’s Guide Only qualiﬁed personnel should perform installation proceduresFCC NOTICE INDUSTRY CANADA NOTICE VCCI NOTICECABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT 2H23-50R/2H33-37R User’s GuideEXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY CABLETRON SOFTWARE PROGRAM LICENSEUNITED STATES GOVERNMENT RESTRICTED RIGHTS 2H23-50R/2H33-37R User’s GuideSAFETY INFORMATION CLASS 1 LASER TRANSCEIVERS SAFETY INFORMATION CLASS 1 LASER TRANSCEIVERSLASER RADIATION AND CONNECTORS 2H23-50R/2H33-37R User’s GuideDECLARATION OF CONFORMITY 2H23-50R/2H33-37R User’s GuideApplication of Council Directives 89/336/EEC 73/23/EEC Manufacturer’s Name Cabletron Systems, Inc2H23-50R/2H33-37R User’s Guide CONTENTS INSTALLATIONCHAPTER INTRODUCTIONContents TROUBLESHOOTINGCHAPTER CHAPTERSNMP Traps Screen Contents2H23-50R/2H33-37R User’s Guide Contents SPECIFICATIONSSPECIFICATIONS OPTIONAL INSTALLATIONS AND1.2 STRUCTURE OF THIS GUIDE 1.1 USING THIS GUIDECHAPTER INTRODUCTION 1.3 OVERVIEW Chapter 1 IntroductionThe 2H23-50R is a high speed network repeater/switch device that provides four Ethernet networks and four Fast Ethernet networks RJ21 MicroLANs, CONN 1 through CONN 4 and two slots 5 and 6 for optional Fast Ethernet Interface Modules. The RJ21 connectors each consist of 12 repeater ports that are able to reside on the Ethernet 1.3.3 Auto-Negotiation 1.3.2 Full Duplex Switched Ethernet1.3.1 Connectivity 1.3.4 SmartTrunking 1.3.5 Runtime IP Address Discovery1.3.7 Switching Options 1.3.6 Management1.3.10 LANVIEW Diagnostic LEDs 1.4 OPTIONAL FEATURES1.3.8 Standards Compatibility 1.3.9 Year 2000 CompliantTable 1-1 Fast Ethernet Interface Modules 1.4.1 Fast Ethernet Interface Modules1.4.2 High Speed Interface Modules 1.5 DOCUMENT CONVENTIONS The following conventions are used throughout this documentDocument Conventions 2H23-50R/2H33-37R User’s Guide1.6 GETTING HELP 1.7 RELATED MANUALS 2H23-50R/2H33-37R User’s Guide Chapter 1 Introduction1-12 2.2 10BASE-T NETWORK CHAPTER NETWORK REQUIREMENTS2.1 SmartTrunk 2.3 100BASE-TX NETWORK 2.4 100BASE-FX FIBER OPTIC NETWORKSingle Mode Fiber Cable Lengths Multimode Fiber Optic Cable LengthCHAPTER INSTALLATION 3.1 REQUIRED TOOLS3.3 INSTALLING OPTIONS 3.2 UNPACKING THE DEVICE3.4 INSTALLING THE DEVICE 3.4.1 Tabletop or Shelf InstallationGuidelines for Tabletop and Shelf Installations Installation3.4.2 Rackmount Installation Guidelines for the Rackmount InstallationRack mounting the 2H23-50R or 2H33-37R involves the following Rack Mounting the Device Figure 3-3 Installing the Rackmount BracketsFigure 3-4 Installing the Device in a Rack 3.4.3 Connecting Power to the Device 3.5 CONNECTING TO THE NETWORK 3.5.1 Connecting Cables to CONN 1 Through 3.5.2 Connecting a UTP Segment to the FE-100TX Figure 3-7 FE-100TX Crossover Switch Figure 3-8 Cable Pinouts - RJ45 Crossover Cable100 FE-100TX 2251-31Figure 3-9 FE100-TX Port Connection RX LED TX LED3.5.3 Connecting a Fiber Optic Segment to the FE-100FX and FE-100F3 SC Connector Figure 3-10 Fiber Optic Cable ConnectionRX LED TX LED3.6 COMPLETING THE INSTALLATION 2H23-50R/2H33-37R User’s Guide Chapter 3 Installation3-16 CHAPTER TROUBLESHOOTING 4.1 USING LANVIEW2H23-50R/2H33-37R User’s Guide Chapter 4 TroubleshootingFlashing indicates an LED ﬂashing randomly Using LANVIEW 2H23-50R/2H33-37R User’s GuideTable 4-1 LANVIEW LEDs ColorTable 4-1 LANVIEW LEDs Continued Chapter 4 Troubleshooting2H23-50R/2H33-37R User’s Guide 4.2 FE-100TX LED 100 LED Receive RX LEDChapter 4 Troubleshooting Table 4-2 10/100 LED Indications When RX LED Is OnTable 4-3 10/100 LED Indications When RX LED Is Off A link exists if the associated port 5 or 6 RX LED is on4.3 TROUBLESHOOTING CHECKLIST Troubleshooting ChecklistTable 4-4 Troubleshooting Checklist 2H23-50R/2H33-37R User’s Guide4.4 USING THE RESET BUTTON downtime of up to two minutes will result from this actionCHAPTER LOCAL MANAGEMENT 5.1 OVERVIEW5.2 LOCAL MANAGEMENT KEYBOARD CONVENTIONS Chapter 5 Local Management2H23-50R/2H33-37R User’s Guide Table 5-1 Keyboard Conventions5.3 MANAGEMENT TERMINAL SETUP 5.3.1 Console Cable Connection Management Terminal Connection5.3.2 Management Terminal Setup Parameters Management Terminal SetupTable 5-2 VT Terminal Setup 2H23-50R/2H33-37R User’s Guide5.3.3 Telnet Connections 5.3.4 Monitoring an Uninterruptible Power Supply 5.4 ACCESSING LOCAL MANAGEMENT Figure 5-3 Local Management Password Screen5.4.1 Navigating Local Management Screens Figure 5-4 802.1D Switching Mode, LM Screen Hierarchy Figure 5-5 802.1Q Switching Mode, LM Screen HierarchyChapter 5 Local Management 5-105.4.2 Selecting Local Management Menu Screen Items 5.4.3 Exiting Local Management ScreensTo exit LM using the RETURN command, proceed as follows 5.5 DEVICE MENU SCREEN DEVICE CONFIGURATIONDevice Menu Screen 2H23-50R/2H33-37R User’s GuideNETWORK TOOLS DEVICE CONFIGURATIONDEVICE STATISTICS Section 5.7.9 provides instructions on setting the operational mode 5.6 DEVICE CONFIGURATION MENU SCREENSWITCH CONFIGURATION SMARTTRUNK CONFIGURATION GENERAL CONFIGURATION SWITCH CONFIGURATIONSMARTTRUNK CONFIGURATION DEVICE SPECIFIC CONFIGURATION5.7 GENERAL CONFIGURATION SCREEN Default Gateway Modiﬁable IP Address ModiﬁableSubnet Mask Modiﬁable TFTP Gateway IP Addr ModiﬁableDisplays the total time that the device has been operating Com Toggle Application ToggleClear NVRAM Toggle IP Fragmentation Toggle5.7.1 Setting the IP Address 5.7.2 Setting the Subnet Mask Figure 5-11 Conﬁguration Warning Screen5.7.3 Setting the Default Gateway 5.7.4 Setting the TFTP Gateway IP Address5.7.5 Setting the Device Date 5.7.6 Setting the Device Time 5.7.7 Entering a New Screen Refresh Time802.1D SWITCHING, 802.1Q SWITCHING, or SECURE FAST VLAN 5.7.8 Setting the Screen Lockout Time5.7.9 Setting the Operational Mode General Conﬁguration Screen 2H23-50R/2H33-37R User’s Guide5-27 Figure 5-12 Conﬁguration Warning Screen5.7.10 Conﬁguring the COM Port 6. When the message “SAVED OK” displays, the edits you made are saved 4. Use the arrow keys to highlight YES. Press ENTERGeneral Conﬁguration Screen 2H23-50R/2H33-37R User’s Guide5.7.10.1 Changing the COM Port Application 5.7.11 Clearing NVRAMClear NVRAM as follows 5.7.12 Enabling/Disabling IP Fragmentation 5.8 SNMP COMMUNITY NAMES SCREEN Figure 5-15 SNMP Community Names ScreenAccess Policy Read-Only Community Name Modiﬁable5.8.1 Establishing Community Names 5.9 SNMP TRAPS SCREEN 5.9.1 Conﬁguring the Trap Table Enable Traps Toggle5.10 SWITCH CONFIGURATION SCREEN Switch Conﬁguration Screen Switch Address Read-OnlyFigure 5-17 Switch Conﬁguration Screen Number of Ports Read-OnlyPort # Read-Only Type of STA SelectableAge Time Modiﬁable Displays the hardware address assigned to each listed port 5.10.3 Setting Enabling or Disabling the Port Status 5.10.1 Setting the STA5.10.2 Setting the Age Time Field 5.11 DEVICE SPECIFIC CONFIGURATION MENU SCREEN Figure 5-18 Device Speciﬁc Conﬁguration Menu ScreenHIGH SPEED INTERFACE CONFIGURATION 802.1Q VLAN CONFIGURATIONPort Based VLAN User’s Guide SYSTEM RESOURCES5.12 SYSTEM RESOURCES SCREEN REPEATER CONFIGURATION MENU5.12.1 Setting the Reset Peak Switch Utilization Flash Memory Installed Read-onlyDRAM Installed Read-only NVRAM Installed Read-only5.13 HIGH SPEED INTERFACE CONFIGURATION SCREEN 2H23-50R ONLY Port Type Read-only Link Status Read-onlyCurrent Oper. Mode Read-only Desired Oper. Mode Selectable5.13.1.1 Setting the FE-100FX or FE-100F3 Operational Mode 5.13.1 Conﬁguring an FE-100FX or FE-100F35.13.2 Conﬁguring an FE-100TX 5.13.2.1 Setting the FE-100TX Operational Mode5.13.2.2 Setting the FE-100TX Advertised Ability 5.14 FLASH DOWNLOAD SCREEN The following brieﬂy deﬁnes each ﬁeld of the Flash Download screen Download Method SelectableReboot After Download Modiﬁable only when the user chooses RUNTIME TFTP Gateway IP Addr SelectableLast Image Server IP Read-only Last Image File Name Read-only5.14.1 Image File Download Using BootP 5.14.2 Image File Download Using TFTP5.14.3 Image File Download Using Runtime 5.15 PORT REDIRECT FUNCTION SCREEN Table 5-6 CONN/Port OrganizationShows which ports are currently set as destination ports 5.15.1 Displaying the Source and Destination Entries 5.15.2 Changing Source and Destination Ports 5.16 BROADCAST SUPPRESSION SCREEN Broadcast frames received above the threshold setting are droppedThe following explains each ﬁeld of the Broadcast Suppression screen 5.16.1 Setting the Threshold 5.16.2 Setting the Reset Peak5.17 THE VLAN MAIN MENU 802.1Q SCREEN Figure 5-24 VLAN Main Menu Screen5.18 REPEATER CONFIGURATION MENU SCREEN Figure 5-25 Repeater Conﬁguration Menu Screen5.19 REPEATER PORT CONFIGURATION SCREEN REPEATER PORT CONFIGURATIONDEVICE LEVEL SECURITY CONFIGURATION PORT LEVEL SECURITY CONFIGURATIONTable 5-8 CONN/Repeater Port Relationship PORT# Read-onlyFigure 5-26 Repeater Port Conﬁguration Screen Displays the Link status Link or No Link of the port 5.19.1 Setting the Port Operating Mode 5.19.3 Setting All Ports 5.19.2 Enabling /Disabling Ports5.20 DEVICE LEVEL SECURITY CONFIGURATION 5.19.4 Enabling/Disabling Network PortsConnector Read-Only Figure 5-27 Device Level Security Conﬁguration ScreenSecurity State Selectable Table 5-10 CONN/Repeater Port Relationship5.20.1 Setting the Device Level Security 5.21 PORT LEVEL SECURITY CONFIGURATION SCREEN Port Level Security Conﬁguration Screen2H23-50R/2H33-37R User’s Guide 5-75Port Read-only Network Read-onlyTable 5-11 CONN/Repeater Port Relationship Table 5-12 CONN/Network OrganizationPort Level Security Conﬁguration Screen Security State SelectableAction On Intruder Toggle 2H23-50R/2H33-37R User’s Guide5.21.1 Setting the Port Level Security Address Modiﬁable5.22 DEVICE STATISTICS MENU SCREEN The Device Statistics Menu screen displays the following menu items 5.23 SWITCH STATISTICS SCREEN REPEATER STATISTICSThe Switch Statistics screen displays the following ﬁelds 5.24 INTERFACE STATISTICS SCREEN CLEAR COUNTERS CommandInErrors Read-Only Interface Read-OnlyName Read-Only InOctets Read-OnlyOutErrors Read-Only Admin Status Read-OnlyOutOctets Read-Only OutUnicast Read-Only5.24.1 Displaying Interface Statistics 5.24.2 Using the Clear Counters Command 5.25 RMON STATISTICS SCREENThe following brieﬂy deﬁnes each ﬁeld of the RMON Statistics screen CRC Align Errors Read-only Drop Events Read-onlyCollisions Read-only Broadcast Pkts Read-onlyFragments Read-only Jabbers Read-onlyTotal Packets Read-only Total Octets Read-only5.25.2 Using the Clear Counters Command 5.25.1 Displaying RMON StatisticsThe following describes each ﬁeld of the Repeater Statistics screen 5.26 REPEATER STATISTICS SCREENOperating statistics for each repeater port 1 through 48 for the For details on how to use this ﬁeld, refer to Section Displays the total number of errors PORT # Command 5.26.1 Displaying Network Statistics5.26.2 Displaying Network Port Statistics 5.26.3 Using the Clear Counters Command 5.27 NETWORK TOOLSSyntax DescriptionOptions Example5.27.1 Built-in Commands arp optionsSyntax OptionsExample SyntaxDescription OptionsSyntax DescriptionOptions ExampleExample SyntaxDescription OptionsSyntaxreset Not ApplicableOptions Examplenot reached, the command displays all next-hop ExampleSyntax DescriptionOptions Not ApplicableExample SyntaxExample linktrapSyntax DescriptionThe atmstpstate command allows the user to option as enable, disable, or status. The STATESyntax Description5.27.2 Special Commands SyntaxDescription Options2H23-50R/2H33-37R User’s Guide Chapter 5 Local Management5-108 A.2 PHYSICAL PROPERTIES APPENDIX A SPECIFICATIONSA.1 DEVICE SPECIFICATIONS A.5 INPUT/OUTPUT PORTS A.3 ELECTRICAL SPECIFICATIONSA.4 ENVIRONMENTAL REQUIREMENTS A.6 COM PORT PINOUT ASSIGNMENTS A.7 REGULATORY COMPLIANCEAppendix A Speciﬁcations 2H23-50R/2H33-37R User’s GuideAPPENDIX B FE-100TX, FE-100FX, AND FE-100F3 SPECIFICATIONS B.1 FE-100TX2H23-50R/2H33-37R User’s Guide B.2 FE-100FXAppendix B FE-100TX, FE-100FX, and FE-100F3 Speciﬁcations B.3 FE-100F3 FE-100F32H23-50R/2H33-37R User’s Guide FE-100f3Appendix B FE-100TX, FE-100FX, and FE-100F3 Speciﬁcations 2H23-50R/2H33-37R User’s GuideAPPENDIX C OPTIONAL INSTALLATIONS AND MODE SWITCH BANK SETTINGS C.1 REQUIRED TOOLS2H23-50R/2H33-37R User’s Guide C.2 REMOVING THE CHASSIS COVERAppendix C Optional Installations and Mode Switch Bank Settings To remove the chassis cover, proceed as follows C.2.1 Setting the Mode Switches Figure C-1 Removing the Chassis CoverFigure C-2 Mode Switch Location/Component Layout Switch deﬁnitions and positions are as followsSwitches 1 through 4 - For Cabletron Systems use only Switch 7 - Clear NVRAM. Changing the position of this switch resets NVRAM on the next power-up. All user-entered parameters, such as the IP address, device names, etc., are reset to the factory default settings. Once the device resets, you can either use the factory default settings or reenter your own parameters C.3 INSTALLING OPTIONAL FAST ETHERNET INTERFACE MODULES Installing Optional Fast Ethernet Interface ModulesFigure C-3 Fast Ethernet Interface Module Connector Location Primary Power SupplyTo install a Fast Ethernet Interface Module in port slot 5 or 6 of the 2H23-50R/2H33-37R User’s Guide Installing Optional Fast Ethernet Interface Modules2. Remove the screw from the rear standoff. Save the screw 7. Reinstall the cover INDEX Numerics2H23-50R/2H33-37R User’s Guide Index-12H23-50R/2H33-37R User’s Guide IndexIndex-2 Index-3 Index2H23-50R/2H33-37R User’s Guide 2H23-50R/2H33-37R User’s Guide IndexIndex-4 Index-5 Index2H23-50R/2H33-37R User’s Guide 2H23-50R/2H33-37R User’s Guide IndexIndex-6