3Com 5112M-TPLS installation and operation guide Troubleshooting Using the Port Status LEDs

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Table 5-1. Troubleshooting Using the Port Status LEDs (Continued)

	LED State	Indication	Possible	Troubleshooting
	LED State	Indication	Problem	Suggestions
			Problem	Suggestions

	Off	Ports	Broken LED.	Press the LED test on the
	(continued)	Disabled		Controller Module.
		(continued)

			Faulty	Replace module.
			Security
			Module.

			Attempted	Display the Intruder list for
			breach of	intruder information. Then
			security	re-enable the port.
			intrusion.

The Security Module also provides a Module Status LED. This LED indicates the operational status of the module. The Module Status LED is On to indicate the module is operational. The LED is Off to indicate the module is non operational. If this LED is off, refer to the troubleshooting suggestions in Table 5-1.

This LED is helpful if the Security Module is first installed, but the Autolearning database has not been downloaded to the module. The Module Status LED will be On and the 12 Port Status LEDs will be Off, indicating that the Security Module is operational, but all 12 ports are disabled. Thus, the Module Status LED enables you to discern that the lack of bus traffic is due to the ports being disabled rather than due to a fault with the Security Module.

Troubleshooting 5 - 3

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Contents Page VDE Class B Compliance Restricted Rights Page Contents Installing and Operating the Module Troubleshooting Appendix B Technical Support Figures Page Tables Page Audience How to Use This GuideStructure of This Guide Convention Indicates Example Document ConventionsUsr/snm/agents Related Documents Reference Documents 3Com DocumentsPage ONline 10BASE-T Security Module IntroductionApplication Theory of OperationONline 10BASE-T Security Module Application ONline ManagementPage Designing and Expanding the Network Basic Network Rules Understanding the General RulesRule Definition Recommendations/Notes Seven Basic Network RulesCertain LAN devices Seven Basic Network Rules LAN Product Equivalent Distances LAN EquivalenceLAN Product Equivalent Fiber Fiber Backbone, Twisted Pair To-The-Desk Fiber Backbone, Twisted Pair To-The-Desk Example Sample Configuration Distance Calculation Maximum Link Distance on Twisted Pair Twisted Pair Backbone, Twisted Pair To-The-DeskCable Gauge Supports Link Distances Up To Unshielded Twisted Pair Network Patch PanelsRedundant Links Redundant Twisted Pair ConfigurationDesigning and Expanding the Network 2 Page Installing and Operating the Module Quick Installation Chart Precautionary ProceduresProcedures for Completing Installation Step Procedure ReferenceInstalling the Module Unpacking Procedures Security Module Dip Switch SW1 Location Setting the Dip SwitchSwitch Network Selection Switch Settings DIP Switch SW1 Network Selection SettingsSwitch Function Factory Setting DIP Switch SW1 Security and Link Integrity SettingsOff On Installing the Cable Tie-Wrap Kit Installing the ModuleAttaching the Tie-Wrap Bracket to the Module Attaching Cables With 90 Connectors Installing an ONline 10BASE-T Security Module Installing the ModuleONline 10BASE-T Security Module Cable Connection Configuring the Module Network Assignment Port EnablePort Redundancy Module Security Link IntegrityReverting Module Configurations Saving Module ConfigurationsAutopartition Threshold Show Module Show Module Verbose Show Port Show Port Verbose Showing Module ConfigurationsMonitoring the Front Panel Security Module Faceplate Color State Indicates Name Interpretation of the Security Module LEDsLED and Network Verification LED State Network ConfigurationNetwork Check Codes Page Configuring Security Features Quick Reference for Configuring the Security Module Quick Reference for Configuring SecurityProcedure Command SET Security Autolearn Eavesdropping Security Configuring Security FeaturesExample of Eavesdropping Security Intrusion DetectionExample of Intrusion Detection Defining Port Security TypeDefining Port Action on Intrusion Enabling Ports Configuring Autolearning MaskConfiguring Autolearning Autolearn capture done learned 0 addresses total Defining a MAC Address Manually Downloading the Autolearning Database Configuring Security Mode Saving Security Configurations Showing Security ConfigurationsReverting Security Configurations Showing Port Configurations Eavesdrop None ETHERNET1 Showing Security Autolearn Showing Security Intruder List Clearing the MAC Address Table Clearing Security ConfigurationsClearing the Security Intruder List Clearing the Autolearning DatabaseEMM Security Snmp Variables Using 3Com MIB Security VariablesUsing the Security Module Snmp Variables Configuring Security Features 4 Page Troubleshooting TroubleshootingTroubleshooting Using the Port Status LEDs Troubleshooting Using the Status LEDsTroubleshooting Using the Port Status LEDs Troubleshooting Using the Activity LEDs Troubleshooting Using the Activity LEDsLED State Possible Problem Troubleshooting Solutions Technical Assistance Page Electrical Specifications SpecificationsMechanical Specifications Environmental SpecificationsGeneral Specifications Pin Connector and Cable Figure A-1 -Pin Cable Male and Female Connectors Hub Trans Ceiver Table A-1 -Pin Cable Pinouts and Port AssignmentsPort # Function PolarityHub Trans Twisted Pair Connectors and CablesHub Port #Figure A-2. RJ-45 Connector Pinouts Twisted Pair ConnectorsTwisted Pair Cables On-line Technical Support 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 Index Activity LEDs, 3-18,3-20 Quick Reference Chart Security Type Default Setting Index