Troubleshooting Checklist | Cabletron Systems EMM-E6 Ethernet

CHAPTER 14: TROUBLESHOOTING

14.2TROUBLESHOOTING CHECKLIST

If your EMM-E6 is not operating properly, the following checklist describes some of the problems that may occur with the EMM-E6 installed in an MMAC, possible causes for the problem, and suggestions for resolving the problem.

14-4	EMM-E6 User’s Guide

Image 149

Cabletron Systems EMM-E6 Ethernet manual Troubleshooting Checklist

Contents

EMM-E6 EMM-E6 USER’S Guide Windows is a registered trademark of Microsoft Corp DOC Notice FCC Notice Cabletron SYSTEMS, INC Program License Agreement Vcci Notice Cabletron Software Program License Bellcore Testing Information Exclusion of Warranty Disclaimer of Liability United States Government Restricted Rights Table of Contents Table of Contents Configuration Screen Accessing Local Management Community NamesAttaching a Console Trap Table Screen Command Line Interface Screen MIB Navigator Router Setup Screen Device Statistics ScreenTroubleshooting Image File Download Appendix B EMM-E6 OIDs Appendix a EMM-E6 Specifications Chapter Introduction Using this Manual Introduction Using this Manual Lanviewsecure Support EMM-E6 Features I960 Processor Design Available Routing ServicesIeee 802.1d Compliant Special Filtering Database EMM-E6 User’s Guide Expandable Flash Eeprom Memory User Configurable EPIMs Expandable Ldram Lanview Diagnostic LEDsExpandable Sdram Snmp and Rmon support Local Communication Ports DLM SupportIn-Band Telnet with MIB Navigator Port Locking and Lanviewsecure Support Mmac with Flexible Network BUS Mmac Chassis Ethernet Channel a Ethernet Channels A, B, C, D, E, and F Ethernet Channels B and C Other FNB Modules Snacmim TRMIM-32A TRMIM-34A TRRMIM-F2T TRRMIM-F3T Ethernet Channel D Channels E and F OSI Model Bridges Filtering and Forwarding Spanning Tree Algorithm Local Management Features Snmp Community Names Review of Addressing MIBsMAC Addresses 00-00-1D-00-26-FB IP Addresses Class a Subnet Addresses Identifying IP Address Classes Subnet Masks S H Examples of Class C Subnet Masks Examples of Class B Subnet Masks Operation of the Subnet Mask Default Gateway Addressing Example EMM-E6 User’s Guide Lanviewsecure Lanview LEDs and Reset Switch EMM-E6 User’s Guide Related Manuals Getting Help Network Requirements Chapter Requirements / Configurations 1 10BASE-T Twisted Pair Network Network Requirements Multimode Fiber Optic Network Single Mode Fiber Optic Network Transceiver Requirements Thin-net Network Repeater Media Interface Modules Sample Repeater MIMs Port Assignment Modules Sample Network Configurations EMM-E6 as a Multiport Router Three Networks With a Single MMAC-FNB Ing le Channe l Adding Users to a Separate Segment Fault Tolerant Wiring Hierarchy Sample Network Configurations EMM-E6 and BRIMs Chapter Installation Quantity Unpacking the EMM-E6 EMM-E6 Mode Switches Setting Mode Switches Do not change the state of Switch 6 unless you Setting Mode Switches Locating SIMMs Simm Upgrades Simm Slot Locations Installing a Simm To install a Simm Installing SIMMs ADDING/REPLACING EPIMs To install an Epim Locating BRIMs Brim Connector Locations PRE-INSTALLATION Test Pre-Installation Test Installing the EMM-E6 Mmac M8FNB EMM-E6 EMM-E6 Installation CHECK-OUT Installation Checkout Connecting to the Network Connecting a Twisted Pair Segment to an EPIM-T EPIM-T 12. The EPIM-X Connecting an AUI Cable to an EPIM-X Connecting to an EPIM-F1/F2, or EPIM-F3 Connecting to the Network EMM-E6 User’s Guide Connecting a Thin-Net Segment to an EPIM-C 14. The EPIM-C 15. The EPIM-A Connecting an AUI Cable to an EPIM-A EMM-E6 User’s Guide Chapter Attaching a Console Configuring Your Terminal Keyboard Set-up Menu Display Setup MenuCommunications Setup Menu Configuring a Console Cable VT S i T i l Connecting to a VT Series Terminal Connecting to an IBM PC or Compatible Pinout Descriptions Configuring a UPS CableRJ45 DB9 EMM-E6-960 Local Management Chapter Accessing Local Management Feature Selection Screen EMM-E6 User’s Guide Chapter Community Names Accessing the Community Name Table Community Name AccessCommunity Name Table Screen Fields Establishing Community Names Accessing the Configuration Screen Chapter Configuration Screen IP Address Configuration Screen FieldsChannel Default Gateway Default InterfacePort Enable Override SubNET Mask Host IP applies to each interface Setting the Host IP Address Modifying a Subnet Mask Setting Default Gateway and Interface Setting Default Gateway and Interface CONNECTING/DISCONNECTING a UPS Enabling Ports Unlocking Ports Chapter Trap Table Screen Accessing the Trap Table Screen Trap Table Screen Fields Configuring the Trap TableSnmp Community Name Traps If you exit without saving, you lose all edits Chapter Snmp Tools Screen Accessing the Snmp Tools Screen Snmp Tools Screen Fields Repeat Security Access LevelCycles Community Name Getting and Setting Oids Getting and Setting Oids Scrolling Through MIB Oids Scrolling Through MIB Oids EMM-E6 User’s Guide Router Setup Screen Chapter Router Setup Screen Device Statistics Screen Chapter Device Statistics Screen Device Statistics Device Statistics Screen Commands Network Selecting an Update FrequencySlot Port Enabling Ports Selecting a Network/Slot/Port Exiting the Device Statistics Screen Disabling Ports EMM-E6 CLI Information Screen Chapter Command Line Interface Screen Managing Device MIBs Chapter MIB Navigator Accessing the MIB Navigator Conventions For MIB Navigator Commands MIB Navigator Command SET Overview Branch Navigation Commands Format cd Path Example MIBNav cd iso/org/dod/internet/mgmt Navigation Commands cont’d 13-6 EMM-E6 User’s Guide EMM-E6 User’s Guide 13-7 13-8 EMM-E6 User’s Guide EMM-E6 User’s Guide 13-9 13-10 EMM-E6 User’s Guide Example MIBNav arp -a Built-In Commands Netstat Built-In Commands cont’d EMM-E6 User’s Guide 13-13 Example EMM-E6 User’s Guide 13-15 Format Done Special Commands Using Lanview Chapter Troubleshooting LED Color Description Error Condition Recommended Action EMM-E6 User’s Guide 14-3 Troubleshooting Checklist Problem Possible Causes Recommended Action Troubleshooting Checklist 14-6 EMM-E6 User’s Guide Using the Reset Switch Chapter Image File Download Decompress the image ﬁle Getting Started Forced Download with Unix 15-4 EMM-E6 Users Guide EMM-E6 Users Guide 15-5 15-6 EMM-E6 Users Guide Standard Local Download Standard Download Procedure Remote Runtime Download Runtime Download Procedure 15-10 EMM-E6 Users Guide Bridging Functionality Appendix a EMM-E6 Specifications Repeater Functionality Environmental Requirements COM 1 PortCOM 2 Port Physical Properties Safety 10BASE-T EPIM-T 10BASE-T Twisted Pair Port EPIM-F2 EPIM-F1/F2 Multimode Fiber Optic Port Figure A-4. EPIM-F3 EPIM-F3 Single Mode Fiber Optic Port Parameter Typical Minimum Thin-net cable Figure A-5 EPIM-C BNC Port Type Position D type receptacle EPIM-A and EPIM-X AUI Port Spanning Tree Protocol CtBridgeStpProtocolSpecificationAppendix B RptrScrAddrMgmtHashType Configuring ARP Request Packets RptrPortGrpSrcAddrLock Port Group SecurityRptrSrcAddrMgmtPortLock RptrPortSecurityLockAddAddress RptrPortSecurityLockStatusRptrPortSecurityLockDelAddress Object Identiﬁer RptrPortSecurityFullSecEnabled RptrPortSecurityDisableOnViolation Enabling Network Level Snmp Traps Enabling & Disabling Snmp TrapsRptrHwTrapsSetLink RptrHwTrapsSetSeg RptrPortGrpHwTrapSetLink Enabling Module Level Snmp TrapsRptrSaTrapSetScraddr RptrPortGrpSaTrapSetSrcaddr Enabling Port Level Snmp TrapsRptrPortGrpHwTrapSetSeg RptrPortHwTrapSetSeg RptrPortHwTrapSetLink ChCompName ChCompAdminStatusActivating Rmon Groups Bridging Dot1dstpPortEnableTrunk Port Security RptrPortSrcAddrForceTrunk FnbPortConnectPortAssignment Channel SelectionFnbconnect RptrSrcAddrMgmtHashType OID Hashing on Source AddresesRemote Downloading 10BASE-FL Glossary10BASE-T ATM Brim BootpAUI Buses BroadcastCard Chassis CSMA/CD DNI DLMEeprom Epim FNB Fddi Ietf IanaIeee LAN ISOLanview Ldram MIM MIB OID Nvram Rmim PVCRmon Sdram SMA SimmSnmp SQE TCP STP UTP Numerics Index Lanview Eeprom Tprmim LED Description EMM-E6 Installation