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3Com RMON-EMP-3 installation and operation guide How to Use This Guide, Audience

Models: RMON-EMP-3

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How to Use This Guide

How to Use This Guide

This guide describes how to install the 3Com Ethernet RMON MultiProbe™ Module into the 3Com ONline™ System Concentrator and the ONcore® Switching Hub. This guide also provides troubleshooting suggestions to use if a problem occurs with the module.

Audience

This guide is intended for the following people at your site:

❑Network manager or administrator

❑Hardware installer

Ethernet RMON MultiProbe Module Installation and Operation Guide xiii

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3Com RMON-EMP-3 installation and operation guide How to Use This Guide, Audience

Contents

Guide ONline Ethernet RMON MultiProbe Module Installation and OperationDocument Number Printed March Model Number RMON-EMP-3 Software Version 3Com Corporation 118 Turnpike Road Southborough, MAFederal Communications Commission Notice ii Ethernet RMON MultiProbe Module Installation and Operation GuideCanadian Emissions Requirements VDE Class B ComplianceRestricted Rights Ethernet RMON MultiProbe Module Installation and Operation Guideiv Ethernet RMON MultiProbe Module Installation and Operation Guide How to Use This Guide ContentsChapter 2 - Installing the Module Chapter 1 - Introductionvi Ethernet RMON MultiProbe Module Installation and Operation Guide Chapter 3 - Configuring the ModuleAppendix A - Specifications Chapter 4 - TroubleshootingAppendix B - Technical Support Indexviii Ethernet RMON MultiProbe Module Installation and Operation Guide Figures x Ethernet RMON MultiProbe Module Installation and Operation Guide Tables xii Ethernet RMON MultiProbe Module Installation and Operation Guide Audience How to Use This GuideStructure of This Guide Convention Document ConventionsIndicates Examplexvi Ethernet RMON MultiProbe Module Installation and Operation Guide Related Documents3Com Documents The following documents supply related background information Reference Documents1 Introduction RMON Architecture RMON OverviewRMON Probe RMON Client Ethernet RMON GroupsHostTopN Group - Sorts stations by top traffic contributors. You can use this information to identify the most active hosts on a segment or the hosts producing the most errors RMON MultiProbe Module Overview RMON MultiProbe Module Features Other benefits of the RMON MultiProbe Module include Theory of Operation Figure 1-1. RMON Sample Application Sample ApplicationPage Installing the Module 2 2 Installing the ModulePrecautionary Procedures Table 2-1. Quick Installation Steps Quick InstallationUnpacking Procedures Installing the RMON MultiProbe Module RMON MultiProbe Module Figure 2-1. RMON MultiProbe Module in the ONline System ConcentratorConnecting a Terminal Initializing the RMON MultiProbe Module Figure 2-2. Main Configuration Menu Monitoring the Front Panel Figure 2-3. RMON MultiProbe Module Front Panel LEDs and Reset Button Table 2-2. Module LED Interpretations LED Name Table 2-2. Module LED Interpretations ContinuedColor StatePage Configuring the Module 3 3 Configuring the ModuleConfiguration Menu Overview Main Menu Figure 3-1. Configuration Menu Flow ChartFigure 3-1. Configuration Menu Flow Chart Continued Modifying Configuration Menu Values Using the Main Configuration Menu Figure 3-2. Main Configuration Menu Option Table 3-1. Main Configuration Menu DescriptionResult Figure 3-3. Download Menu Using the Download MenuDisplays the TFTP server IP address and enables you enables you to enter a new value. The filename canreset, the module reverts to the software contained Table 3-2. Download Menu DescriptionFigure 3-4. Modify/View Configuration Values Menu Using the Modify/View Configuration Values MenuDisplays the time zone and enables you to enter a Table 3-3. Modify/View Configuration Values Menu Descriptiondescription of this menu, refer to the section Using For a description of this menu, refer to the sectionTable 3-3. Modify/View Configuration Values Menu Using the Modify/View Serial Configuration Values MenuDescription Continued Figure 3-5. Modify/View Serial Configuration Values Menu enables you to enter a new value. Valid values Table 3-4. Modify/View Serial Configuration Values Menu DescriptionSerial Port IP Address Displays the modem hangup string and enables Table 3-4. Modify/View Serial Configuration ValuesMenu Description Continued Table 3-5. Modem Init Strings and Hangup Strings Modem Init Strings and Hangup StringsTable 3-5. Modem Init Strings and Hangup Strings Continued Table 3-6. Connect Response String Example Modem Response StringsUsing the Modify/View Network Settings Menu Figure 3-6. Modify/View Network Settings Menu Figure 3-6 is an example of the Modify/View Network Settings menuTable 3-7. Modify/View Network Settings Menu Description Table 3-7. Modify/View Network Settings Menu Description Continued Using the Modify/View Network Interface Settings MenusFigure 3-7. Modify/View Network Interface 1 Settings Menu Displays the interface IP addressand enables you to Table 3-8. Modify/View Network Interface Settings Menu DescriptionDisplays the interface subnet mask and enables you Assigning the Interface IP Address and Subnet Mask Configuring the Module and InterfacesThis configuration sets up one interface for each bridged segment Assigning the Module Default Gateway BOOTP Description Using BOOTP to Configure the Module and InterfacesBOOTP Configuration Process Using BOOTP BOOTP RequirementsSample BOOTPtab file # /etc/bootptab database for bootp server /etc/bootpd Assigning Interfaces to Networks Figure 3-8. DIP Switch Location Using the DIP Switch to Assign NetworksSwitch Table 3-9. Network Selection DIP Switch SettingsSetting Network SelectionUsing Management Commands to Assign Interfaces to Networks Management Command Examples Show Module Command Showing Module and Interface ConfigurationsSaving Network Assignments Show Port Command Configuring the Module 3 Re-initializing the RMON MultiProbe Module Information Preserved Warm-Starting the RMON MultiProbe ModuleInformation Lost Cold-Starting the RMON MultiProbe Module Information Lost Information PreservedPage Troubleshooting 4 4 TroubleshootingTable 4-1. Diagnostic Tests and Interface Status LEDs Troubleshooting Startup ProblemsTable 4-2. Troubleshooting Malfunctions Troubleshooting MalfunctionsTable 4-2. Troubleshooting Malfunctions Continued Symptom Table 4-2. Troubleshooting Malfunctions ContinuedPossible Cause Corrective ActionTable 4-2. Troubleshooting Malfunctions Continued Symptom Table 4-2. Troubleshooting Malfunctions ContinuedPossible Cause Corrective ActionTroubleshooting Network Connectivity Problems Technical Assistance Page Electrical Specifications Environmental Specifications A SpecificationsMechanical Specifications General Specifications Connectors and Cables Memory Configuration AllocationEnvironmental Specifications Electrical SpecificationsPower Requirements Operating TemperatureGeneral Specifications Mechanical SpecificationsConnectors and Cables Connector Pinouts RS-232 25-Pin Port Connector PinoutsTable A-1. RMON MultiProbe Module RS-232 25-Pin Port RS-232 Crossover Cable for a PC or Terminal Sample Out-of-Band Connections Modem Cable PinoutsONline System Concentrator Modem ModemStraight-Through Cable Ethernet Null-Modem Cable Direct SLIP Connection ONline SystemUsing the RMON MultiProbe Module SLIP Address Table A-2. RS-232 Straight-Through Cable Pinouts RS-232 Straight-Through CableFigure A-3. RS-232 Straight-Through Cable Pinouts RS-232 Null-Modem CableTable A-3. Maximum Number of Entries for Ethernet Tables Memory Configuration AllocationOn-line Technical Support B Technical SupportEmail Technical Support Support from Your Network SupplierWorld Wide Web Site Support from 3Com Returning Products for Repair Accessing the 3Com MIB3Com Technical Publications Page Numerics Index2 Index Page 4 Index VDE compliance Warm start configuration information