Theory of Operation, EMMs in Network Configuration | 3Com 5101M-MGT

Figure 1-1. EMMs in Network Configuration

Theory of Operation

The EMM can be installed into any slot in the concentrator and communicates with all other modules in the concentrator via a dedicated control bus on the concentrator backplane as shown in Figure 1-2.

Figure 1-2. Ethernet Management Module Communication in the ONline System Concentrator

Introduction 1 - 3

Image 21

3Com 5101M-MGT installation and operation guide Theory of Operation, EMMs in Network Configuration

Contents

Page VDE Class B Compliance Restricted Rights Page Contents Startup and Management Functions Troubleshooting Appendix B RS-232 Cable Specs and Modem Use Figures Page Tables Page How to Use This Guide Structure of This Guide AudiencePage Document Conventions Convention Indicates ExampleUsr/snm/agents Related Documents Reference Documents 3Com Documents ONline Ethernet Management Module Introduction Shows a typical implementation of EMMs Theory of Operation EMMs in Network ConfigurationPage Complete ONline Control ONline Ethernet Management Module VersionsEMM Starter Version EMM Advanced Version EMM Basic Version Network Management Functions Network Management Access ONline Backplane Architecture TriChannel Backplane Architecture Assignments Chart Ethernet Backplane Combination Reference ChartEthernet Paths Token Ring Paths Fddi Paths Token Ring Backplane Combination Reference Token Ring Backplane Combination Reference Chart Fddi Backplane Combination Reference ChartFddi Paths Ethernet Paths Token Ring Paths Where To Go From Here Precautionary Procedures Unpacking and Installing the Module Unpacking Procedure Installation Procedures Installing the Ethernet Management Module Verifying Operation Installed EMM Connected to a Terminal Ethernet Management Module Faceplate EMM Front Panel Master Mgt Module LED Status LEDInterpretation of the Ethernet Management Module LEDs LED Name Color State Indicates Reset Button Download in Progress LEDRS-232 Serial Port Where to go From Here Page Startup and ManagementFunctions Procedure Command Quick Reference for Getting StartedQuick Reference for Getting Started EMM only Saving and Reverting Configuration Values Configuring the Terminal Parameter Options Factory Default EMM Terminal Parameter Options and Factory Defaults Setting Terminal Hangup Optional Terminal Settings Configuring the EMM Setting Terminal PromptSetting Terminal Timeout 17-Slot ONline System Concentrator 6-Slot ONline System Concentrator Setting Device Password Establishing the Administrator Password Establishing the User Password Setting Device Diagnostics Assigning an EMM NameAssigning a Contact Name and Location Configuring Snmp Values Page Configuring the Alert Setting Assigning IP AddressesCreating a Community Table Defining the Default Gateway Setting a Subnetwork Mask Configuring Modules and Ports Enabling Trap ReceiveAssigning Module Networks Assigning Module Mastership Priority Setting Port Mode Setting Port NetworkSetting Redundant Ports Configuring Address-to-Port Security Managing Security with EMM Master and Slaves Establishing Remote Logins Sample Remote Connection Monitoring With Show Commands Logging Out From a Remote SessionShowing Device Information Showing Module Information Showing Concentrator Information Showing Port Information Showing Counter Statistics Using the Monitor Command Applying Power Troubleshooting Problem Troubleshooting Suggestions Applying Power Suggestions EMM Terminal Interface Suggestions EMM and Terminal Interface Explained in Chapters EMM Trap Messages Field Description EMM Trap Message Fields EMM Network Impact Technical Assistance 3Com Protocols SIZE-14 Page Software Download Instructions Download Requirements How the FDK and UDK Process Works Out-of-Band Download Instructions Installing the ProComm Software Initial Installation Screen Page ProComm Installation Screen Preparing to Download the New Software Connect the RS-232 Cable Initial UDK Installation Screen ProComm Status Line Screen Downloading the New Software Enter Chipcom Key Code ProComm Menu Screen ProComm Download Screen UDK Completion Screen Inband Download InstructionsPage Tftp Enter 3Com Key Code Troubleshooting ProComm Problems UDK Error MessagesMessage Troubleshooting Suggestion \PROCOMM Ethernet Management Module Problems Message TroubleshootingSuggestion EMM Download Error Messages EMM Download Error Messages Page General Specifications Specifications Environmental Specifications Electrical Specifications Hardware Specifications Mechanical SpecificationsMemory Special CircuitsPage RS-232 Cable Specifications Table B-1. RS-232 Cable GuidelinesDevice Cable Page Auto-answer on first ring Modem UsePage MIB-II Groups MIB Groups 3Com MIB Groups On-line Technical Support Technical Support Support from Your Network Supplier Email Technical SupportWorld Wide Web Site Support from 3Com Returning Products for Repair Accessing the 3Com MIB 3Com Technical Publications Page Index EMM Snmp Index