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Cabletron Systems NBR-420, NBR-220, NBR-620 manual Chapter Troubleshooting, Using Lanview

Models: NBR-620 NBR-220 NBR-420

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CHAPTER 4

CHAPTER 4

TROUBLESHOOTING

This chapter provides information for troubleshooting network and NBR operational problems. The following sections describe the LANVIEW LEDs, provide a troubleshooting checklist, and explain how to use the LCD and the RESET button.

4.1 USING LANVIEW

The NBR uses the Cabletron Systems built-in visual diagnostic and status monitoring system called LANVIEW. With LANVIEW, you can quickly scan the LEDs to observe network status or diagnose network problems.

LANVIEW LEDs

NBR-620MULTI PORT BRIDGE ROUTER WITH LANVIEW®

			RECEIVE
			TRANSMIT
		PWR	COLLISION
			COLLISION
DISPLAY RESET		CPU	STAND BY
COM 2	COM 1		D C B A PORT

1092_03

Figure 4-1 LANVIEW LEDs

NBR-SERIES Installation Guide

Page 4-1

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Cabletron Systems NBR-420, NBR-220, NBR-620 manual Chapter Troubleshooting, Using Lanview

Contents

PORT A NBR-220, NBR-420, AND NBR-620 INSTALLATION GUIDEPORT B PORT FNBR-SERIES Installation Guide FCC NOTICEVCCI NOTICE NBR-SERIES Installation GuideDOC NOTICE CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENTCABLETRON SOFTWARE PROGRAM LICENSE EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITYNBR-SERIES Installation Guide UNITED STATES GOVERNMENT RESTRICTED RIGHTSNBR-SERIES Installation Guide DECLARATION OF CONFORMITYINSTALLATION CONTENTSCHAPTER 2 CONTROLS AND INDICATORS NBR-SERIES Installation GuideAPPENDIX A NBR SPECIFICATIONS ContentsTROUBLESHOOTING EPIM SPECIFICATIONSAPPENDIX D ADDITIONAL INFORMATION ContentsNBR-SERIES Installation Guide INDEXPage CHAPTER INTRODUCTIONNBR-SERIES Installation Guide Figure 1-1 The NBR-SERIES of Network Products1.1 USING THIS MANUAL 1.2 NBR FEATURES The NBR provides IETF MIB support, which includes the following The NBR supports the following spanning tree protocols 802.1d DECnet 1.4 RELATED MANUALS Cabletron Systems Routing Services Conﬁguration Guide1.3 CONVENTIONS USED IN THIS DOCUMENT Cabletron Systems BRIM User’s Guides1.5 GETTING HELP anonymousyour email address CHAPTER CONTROLS AND INDICATORS Figure 2-1 The NBR-SERIES of Network Products2.2 RESET BUTTON 2.1 LANVIEW LEDs2.3 LCD DISPLAY CHAPTER INSTALLATION 3.1 UNPACKING THE NBR3.2 PREPARING THE NBR FOR INSTALLATION 3.2.1 Removing Chassis CoverTo remove the chassis cover, perform the following steps see Figure Figure 3-2 Switch, BRIM, and SIMM Locations Chapter 3 InstallationNBR-SERIES Installation Guide NVRAM RESET SWITCH NBR FRONT PANEL MODE SWITCH BANK3.2.2 Setting Mode Switches 3.2.3 Setting NVRAM Reset Switch 3.2.4 Installing SIMM Upgrades 3.2.4.1 Installing FLASH SIMMsInstall a FLASH SIMM as follows 3.2.4.2 Installing LDRAM and SDRAM SIMMs 3.2.5 Adding/Replacing EPIMsFigure 3-4 Installing an LDRAM or SDRAM SIMM 3. Fasten the EPIM to the NBR using the mounting screws 3.2.6 Adding/Replacing BRIMsInstall an EPIM as follows Chapter 3 Installation3.2.7 Testing the NBR 3.3 INSTALLING THE NBR Ensure that you select a location within reach of the network cabling3.3.1 Attaching the Strain-Relief Bracket 3.3.2 Rack Mounting the NBR 3.3.3 Free-Standing Installation 3.4 CONNECTING THE NBR TO THE POWER SOURCEPWR LED on, indicating that the NBR is receiving power 3.5 CONNECTING THE NBR TO THE NETWORK 3.5.1 Connecting a Twisted Pair Segment to an EPIM-TConnect an EPIM-T to a Twisted Pair Segment as follows 3.5.2 Connecting an AUI Cable to an EPIM-X 3.5.3 Connecting a Fiber Optic Cable to an EPIM-F1/F2 or EPIM-F3 connectors do not need alignment sleevesA full alignment sleeve damages the receive port. SMA F1/F2 ST Connectors F1/F2 SMA 906 Connectors w Half Alignment Sleeves SMA 905 Connectors F3 ST ConnectorsFigure 3-15 The EPIM-F1/F2 and EPIM-F3 3.5.4 Connecting a Thin-Net Segment to an EPIM-C 3.5.5 Connecting an AUI Cable to an EPIM-A Connect an EPIM-A to an external network segment as follows CHAPTER TROUBLESHOOTING 4.1 USING LANVIEWError Condition Chapter 4 TroubleshootingNBR-SERIES Installation Guide PageError Condition Using LANVIEWNBR-SERIES Installation Guide PageNBR-SERIES Installation Guide 4.2 TROUBLESHOOTING CHECKLISTChapter 4 Troubleshooting Table 4-2 Troubleshooting ChecklistTable 4-2 Troubleshooting Checklist Continued Troubleshooting ChecklistNBR-SERIES Installation Guide Problem4.3 USING THE LCD 4.3.1 Unsaved Initialization Messages 4.3.2 Static System MessagesTo Display the Messages Jump to Alarm messages From the last Static System messageAutomatic 20-second exit From a Static System message display 4.3.3 Alarm MessagesFrom the product name display Jump to Saved System messagesNBR-SERIES Installation Guide 4.3.4 Saved System MessagesChapter 4 Troubleshooting To Display MessagesFrom the product name display From an Alarm message displayFrom any displayed System message Automatic 20-second exit4.3.5 Failure or Error Messages 4.4 USING THE RESET BUTTONAPPENDIX A NBR SPECIFICATIONS A.1 OPERATING SPECIFICATIONSCOM 2 PORT PINOUTS COM PORT PINOUTSCOM 1 PORT PINOUTS COM PORT NBR-220 Only PINOUTSA.4 ENVIRONMENTAL REQUIREMENTS A.6 POWER SUPPLY REQUIREMENTSA.3 PHYSICAL PROPERTIES A.5 CERTIFICATIONAPPENDIX B EPIM SPECIFICATIONS B.1 EPIM SPECIFICATIONSB.2 EPIM-T B.3 EPIM-F1/F2 Appendix B EPIM SpeciﬁcationsB.4 EPIM-F3 Figure B-3 EPIM-F3The transmitter power levels given above are Peak Power Levels after optical overshoot. Use a Peak Power Meter to compare the values given above to those measured on any particular port. To measure power levels with an Average Power Meter, add 3 dBm to the average power measurement to compare the average power values measured to the values listed above i.e., -33.5 dBm average + 3 dBm = -30.5 dBm peak B.5 EPIM-C Connector TypeGrounding Table B-1 B.6 EPIM-A AND EPIM-XFigure B-5 EPIM-A and EPIM-X, AUI Port DB15 PinoutsAPPENDIX C NETWORK PLANNING AND CONFIGURATION C.1 NETWORK CABLE REQUIREMENTSC.1.1 10BASE-T Twisted Pair Network Appendix C Network Planning and Conﬁguration C.1.2 Multimode Fiber Optic Network C.1.3 Single Mode Fiber Optic Network C.1.4 Thin-Net Network C.4 THE NBR-420/NBR-620 AND BRIMS C.2 TRANSCEIVER REQUIREMENTSC.3 THE NBR AS A MULTIPORT ROUTER Figure C-1 The NBR-620 and BRIMsAPPENDIX D ADDITIONAL INFORMATION D.1 NBR OVERVIEWD.2 ETHERNET CHANNELS A, B, C, AND D D.3 CHANNELS E AND FD.4 BRIDGING FUNCTIONALITY INDEX NBR-SERIES Installation GuideIndex-1 SPANISH POWER SUPPLY CORDGERMAN FRENCH