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3Com RMON-EMP-3 Modem Modem, ONline System Concentrator, Straight-Through Cable

Models: RMON-EMP-3

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Modem

Modem

Modem

ONline System Concentrator

Straight-Through Cable

Ethernet

Null-Modem Cable

Direct SLIP Connection

ONline System

Concentrator

Ethernet

Figure A-2. Out-of-Band Connections to the RMON MultiProbe Module

A - 8 Ethernet RMON MultiProbe Module Installation and Operation Guide

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3Com RMON-EMP-3 Modem Modem, ONline System Concentrator, Straight-Through Cable, Concentrator Ethernet

Contents

ONline Ethernet RMON MultiProbe Module Installation and Operation GuideDocument Number Printed March Model Number RMON-EMP-3 Software Version 3Com Corporation 118 Turnpike Road Southborough, MAii Ethernet RMON MultiProbe Module Installation and Operation Guide Federal Communications Commission NoticeCanadian Emissions Requirements VDE Class B ComplianceEthernet RMON MultiProbe Module Installation and Operation Guide Restricted Rightsiv Ethernet RMON MultiProbe Module Installation and Operation Guide Contents How to Use This GuideChapter 2 - Installing the Module Chapter 1 - IntroductionChapter 3 - Configuring the Module vi Ethernet RMON MultiProbe Module Installation and Operation GuideChapter 4 - Troubleshooting Appendix A - SpecificationsAppendix 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 How to Use This Guide AudienceStructure of This Guide Document Conventions ConventionIndicates ExampleRelated Documents xvi Ethernet RMON MultiProbe Module Installation and Operation Guide3Com Documents Reference Documents The following documents supply related background information1 Introduction RMON Probe RMON OverviewRMON Architecture Ethernet RMON Groups RMON ClientHostTopN 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 Sample Application Figure 1-1. RMON Sample ApplicationPage 2 Installing the Module Installing the Module 2Precautionary Procedures Quick Installation Table 2-1. Quick Installation StepsUnpacking Procedures Installing the RMON MultiProbe Module Figure 2-1. RMON MultiProbe Module in the ONline System Concentrator RMON MultiProbe ModuleConnecting 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 Table 2-2. Module LED Interpretations Continued LED NameColor StatePage 3 Configuring the Module Configuring the Module 3Configuration Menu Overview Figure 3-1. Configuration Menu Flow Chart Main MenuFigure 3-1. Configuration Menu Flow Chart Continued Modifying Configuration Menu Values Using the Main Configuration Menu Figure 3-2. Main Configuration Menu Result Table 3-1. Main Configuration Menu DescriptionOption Using the Download Menu Figure 3-3. Download Menuenables you to enter a new value. The filename can Displays the TFTP server IP address and enables youreset, the module reverts to the software contained Table 3-2. Download Menu DescriptionUsing the Modify/View Configuration Values Menu Figure 3-4. Modify/View Configuration Values MenuTable 3-3. Modify/View Configuration Values Menu Description Displays the time zone and enables you to enter adescription of this menu, refer to the section Using For a description of this menu, refer to the sectionDescription Continued Using the Modify/View Serial Configuration Values MenuTable 3-3. Modify/View Configuration Values Menu Figure 3-5. Modify/View Serial Configuration Values Menu Serial Port IP Address Table 3-4. Modify/View Serial Configuration Values Menu Descriptionenables you to enter a new value. Valid values Menu Description Continued Table 3-4. Modify/View Serial Configuration ValuesDisplays the modem hangup string and enables Modem Init Strings and Hangup Strings Table 3-5. Modem Init Strings and Hangup StringsTable 3-5. Modem Init Strings and Hangup Strings Continued Modem Response Strings Table 3-6. Connect Response String ExampleUsing the Modify/View Network Settings Menu Figure 3-6 is an example of the Modify/View Network Settings menu Figure 3-6. Modify/View Network Settings MenuTable 3-7. Modify/View Network Settings Menu Description Using the Modify/View Network Interface Settings Menus Table 3-7. Modify/View Network Settings Menu Description ContinuedFigure 3-7. Modify/View Network Interface 1 Settings Menu Displays the interface subnet mask and enables you Table 3-8. Modify/View Network Interface Settings Menu DescriptionDisplays the interface IP addressand enables you to Configuring the Module and Interfaces Assigning the Interface IP Address and Subnet MaskThis configuration sets up one interface for each bridged segment Assigning the Module Default Gateway BOOTP Configuration Process Using BOOTP to Configure the Module and InterfacesBOOTP Description Sample BOOTPtab file BOOTP RequirementsUsing BOOTP # /etc/bootptab database for bootp server /etc/bootpd Assigning Interfaces to Networks Using the DIP Switch to Assign Networks Figure 3-8. DIP Switch LocationTable 3-9. Network Selection DIP Switch Settings SwitchSetting Network SelectionUsing Management Commands to Assign Interfaces to Networks Management Command Examples Saving Network Assignments Showing Module and Interface ConfigurationsShow Module Command Show Port Command Configuring the Module 3 Re-initializing the RMON MultiProbe Module Information Lost Warm-Starting the RMON MultiProbe ModuleInformation Preserved Cold-Starting the RMON MultiProbe Module Information Preserved Information LostPage 4 Troubleshooting Troubleshooting 4Troubleshooting Startup Problems Table 4-1. Diagnostic Tests and Interface Status LEDsTroubleshooting Malfunctions Table 4-2. Troubleshooting MalfunctionsTable 4-2. Troubleshooting Malfunctions Continued Table 4-2. Troubleshooting Malfunctions Continued SymptomPossible Cause Corrective ActionTable 4-2. Troubleshooting Malfunctions Continued Table 4-2. Troubleshooting Malfunctions Continued SymptomPossible Cause Corrective ActionTroubleshooting Network Connectivity Problems Technical Assistance Page A Specifications Electrical Specifications Environmental SpecificationsMechanical Specifications General Specifications Connectors and Cables Memory Configuration AllocationElectrical Specifications Environmental SpecificationsPower Requirements Operating TemperatureMechanical Specifications General SpecificationsConnectors and Cables Table A-1. RMON MultiProbe Module RS-232 25-Pin Port RS-232 25-Pin Port Connector PinoutsConnector Pinouts RS-232 Crossover Cable for a PC or Terminal Modem Cable Pinouts Sample Out-of-Band ConnectionsModem Modem ONline System ConcentratorStraight-Through Cable Ethernet Null-Modem Cable Direct SLIP Connection ONline SystemUsing the RMON MultiProbe Module SLIP Address RS-232 Straight-Through Cable Table A-2. RS-232 Straight-Through Cable PinoutsRS-232 Null-Modem Cable Figure A-3. RS-232 Straight-Through Cable PinoutsMemory Configuration Allocation Table A-3. Maximum Number of Entries for Ethernet TablesB Technical Support On-line Technical SupportWorld Wide Web Site Support from Your Network SupplierEmail Technical Support Support from 3Com Accessing the 3Com MIB Returning Products for Repair3Com Technical Publications Page Index Numerics2 Index Page 4 Index Warm start configuration information VDE compliance