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Cabletron Systems 2H253-25R manual Troubleshooting, Using Lanview

Models: 2H253-25R

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Troubleshooting

This chapter provides information concerning the following:

•Using LANVIEW (Section 4.1)

•Troubleshooting Checklist (Section 4.2)

•Using the RESET Button (Section 4.3)

4.1USING LANVIEW

The 2H253-25R uses Cabletron Systems’ built-in visual diagnostic and status monitoring system called LANVIEW. The LANVIEW LEDs (Figure 4-1) allow quick observation of the network status to aid in diagnosing network problems.

LED Receive (RX)

MODE

RX-TX

DPX-SPD

Transmit (TX)

LED

MODE

RX-TX

DPX-SPD

Full Duplex Status

Speed Status

FAST ETHERNET WORKGROUP SWITCH
LED	2	4	6	8	10	12	14	16	18	20	22	24
MODE	1	3	5	7	9	11	13	15	17	19	21	23
RX-TX	1	3	5	7	9	11	13	15	17	19	21	23
RX-TX

DPX-SPD



				PWR
2H253-25R		RESET		CPU
2H253-25R			COM
			COM
			PWR	CPU
A	LED functions when LED MODE switch is in the RX-TX position. This is the
A	default switch setting.

B LED functions when LED MODE switch is in the DPX-SPD position.

2762-09

Figure 4-1 LANVIEW LEDs

Troubleshooting 4-1

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Cabletron Systems 2H253-25R manual Troubleshooting, Using Lanview

Contents

FAST ETHERNET WORKGROUP SWITCH 2H253-25R SmartSwitch Installation User’s GuideRESET 2H253-25RPage Only qualiﬁed personnel should perform installation procedures VCCI NOTICE FCC NOTICEINDUSTRY CANADA NOTICE CABLETRON SYSTEMS, INC PROGRAM LICENSE AGREEMENT Page CABLETRON SYSTEMS SALES AND SERVICE, INC PROGRAM LICENSE AGREEMENT 7. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS, PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR RELIANCE DAMAGES, OR OTHER LOSS ARISING OUT OF THE USE OR INABILITY TO USE THIS CABLETRON PRODUCT, EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR IN THE DURATION OR LIMITATION OF IMPLIED WARRANTIES IN SOME INSTANCES, THE ABOVE LIMITATION AND EXCLUSIONS MAY NOT APPLY TO YOU CABLETRON SYSTEMS LIMITED PROGRAM LICENSE AGREEMENT viii If the Program is exported from the United States pursuant to the License Exception TSR under the U.S. Export Administration Regulations, in addition to the restriction on transfer set forth in Sections 1 or 2 of this Agreement, You agree not to i reexport or release the Program, the source code for the Program or technology to a national of a country in Country Groups D1 or E2 Albania, Armenia, Azerbaijan, Belarus, Bulgaria, Cambodia, Cuba, Estonia, Georgia, Iraq, Kazakhstan, Kyrgyzstan, Laos, Latvia, Libya, Lithuania, Moldova, North Korea, the People’s Republic of China, Romania, Russia, Rwanda, Tajikistan, Turkmenistan, Ukraine, Uzbekistan, Vietnam, or such other countries as may be designated by the United States Government, ii export to Country Groups D1 or E2 as deﬁned herein the direct product of the Program or the technology, if such foreign produced direct product is subject to national security controls as identiﬁed on the U.S. Commerce Control List, or iii if the direct product of the technology is a complete plant o r any major component of a plant, export to Country Groups D1 or E2 the direct product of the plant or a major component thereof, if such foreign produced direct product is subject to national security controls as identiﬁed on the U.S. Commerce Control List or is subject to State Department controls under the U.S. Munitions ListDECLARATION OF CONFORMITY Page INTRODUCTION ContentsNETWORK REQUIREMENTS ABOUT THIS GUIDETROUBLESHOOTING INSTALLATIONSPECIFICATIONS OPTIONAL INSTALLATIONS AND MODE SWITCH BANK SETTINGSxiii FiguresTroubleshooting Checklist TablesLANVIEW LEDs COM Port Pin AssignmentsAbout This Guide USING THIS GUIDESTRUCTURE OF THIS GUIDE Important NoticeRELATED DOCUMENTS HSIM-W6 Installation Guide HSIM-W84 Installation GuideEthernet Technology Guide Cabling Guide SmartTrunk User’s Guide WAN Series Local Management User’s GuideThe guide uses the following conventions DOCUMENT CONVENTIONSPage Important Notice Introduction1.1 OVERVIEW 1.1.2 Auto-Negotiation 1.1.1 Connectivity1.1.3 Runtime IP Address Discovery 1.1.4 Full Duplex Switched Ethernet1.1.5 SmartTrunk The 2H253-25R will reboot after RAD is successful1.1.8 Port/VLAN Redirect Functions 1.1.6 Remote Monitoring RMON1.1.7 Broadcast Suppression 1.1.10 Flow Control 1.1.9 Rate Limiting1.1.14 Switching Options 1.1.11 GARP Switch Operation1.1.12 802.1 Port Priority 1.1.13 Management1.1.15 Optional HSIMs and VHSIMs 1.1.18 LANVIEW Diagnostic LEDs1.1.16 Standards Compatibility 1.1.17 Year 2000 Compliantyour email address 1.2 GETTING HELPanonymous 2.2 10BASE-T NETWORK Network Requirements2.1 SmartTrunk 2-2 Network Requirements 2.3 100BASE-TX NETWORK100BASE-TX Network 3.1 UNPACKING THE DEVICE InstallationTable 3-1 Contents of 2H253-25R Carton 3.2 INSTALLING OPTIONS3.3 INSTALLING THE DEVICE Installation 3.3.1 Tabletop or Shelf InstallationGuidelines for Tabletop and Shelf Installations A = 15 cm 6 in B = 57 cm 22.5 in C = 53 cm 21 in D = 213 cm 7 ft 3.3.2 Rackmount InstallationGuidelines for the Rackmount Installation Rack mounting the 2H253-25R involves the following Attaching the Strain-Relief BracketInstallation Rack Mounting the 2H253-25R To connect the 2H253-25R to the power sources, proceed as follows 3.3.3 Connecting Power3.4 CONNECTING TO THE NETWORK Transmit TX Figure 3-6 Straight Cable Connection3.5 COMPLETING THE INSTALLATION 4.1 USING LANVIEW TroubleshootingDevice electronics not Table 4-1 LANVIEW LEDs Cont’d Should ﬂash green every two Refer to the SmartSwitch Series 4.2 TROUBLESHOOTING CHECKLIST1. Refer to the SmartSwitch Series 2E253, 2H252, 2H253, and 2H2582H258 Local Management User’s Series 2E253, 2H252, 2H253, andRefer to the SmartSwitch Series 2E253, 2H252, 2H253, and 2H258sometime before either cycling NVRAM Reset, was changedFigure 4-2 RESET Button 4.3 USING THE RESET BUTTONA.2 PHYSICAL PROPERTIES A.1 DEVICE SPECIFICATIONSSpeciﬁcations A.4 ENVIRONMENTAL REQUIREMENTS A.3 ELECTRICAL SPECIFICATIONSA.5 INPUT/OUTPUT PORTS 200-240 VacFCC Part 15, CSA C108.8, 89/336/EEC, EN A.6 COM PORT PINOUT ASSIGNMENTSA.7 REGULATORY COMPLIANCE Page B.1 REQUIRED TOOLS Optional Installations and Mode Switch Bank SettingsThis section describes how to remove the 2H253-25R chassis cover B.2 REMOVING THE CHASSIS COVERB-2 Optional Installations and Mode Switch Bank Settings Removing the Chassis CoverTo remove the chassis cover, proceed as follows Removing the Chassis Cover B-4 Optional Installations and Mode Switch Bank SettingsScrews Chassis Cover Front Panel Chassis Figure B-1 Removing the Chassis CoverB.3 SETTING THE MODE SWITCHES B-6 Optional Installations and Mode Switch Bank Settings B.4 SIMM UPGRADESIMM Upgrade B.4.1 Locating SIMMs B.4.2 Installing the DRAM SIMMConnector Connector Teeth Clip Side Notch SIMM UpgradeFigure B-4 Installing the DRAM B-8 Optional Installations and Mode Switch Bank SettingsInstalling Optional HSIM or VHSIM Interface Modules B.5 INSTALLING OPTIONAL HSIM OR VHSIM INTERFACE MODULESFigure B-5 HSIM and VHSIM Connector Locations Optional Installations and Mode Switch Bank SettingsPage Numerics IndexIndex-2 Index