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3Com manual Troubleshooting the NJ220, Troubleshooting Matrix

Models: NJ220

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Troubleshooting the NJ220

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Troubleshooting the NJ220

If you encounter problems with the IntelliJack:

■Verify the IntelliJack is receiving power by viewing the Power LED (it should be on). If the Power LED is not on, make sure that:

■If using power over Ethernet, the other end of the network cable is plugged into a switch on the network that has Power Over Ethernet integrated into it, or one that feeds into an external midspan power supply that supports Power Over Ethernet.

■The local power supply is plugged into the IntelliJack and into a working electrical outlet, if your network does not support Power Over Ethernet.

■Verify the IntelliJack is connected to the network properly by viewing the Link LED (it should be on). If the Link LED is not on, make sure the network cable:

■Is terminated properly. Refer to the connector manufacturer’s instructions for terminating the cable. Be sure to test the connector and verify it is working.

■Has a valid connection to the network.

■Adheres to proper length and cabling specifications for your network.

■The IntelliJack is configured for manual MDI. Be sure to use a straight-through cable. If you want to use a cross-connect cable, you must change settings in the Configuration Manager software.

Troubleshooting Matrix

Event/Message	Description	Solution

Power LED is not on	IntelliJack is not receiving	■ Ensure power supply is properly
	power	connected.
		■ For power over Ethernet, make sure
		that the cable is connected to both
		the LAN port on the back of the
		IntelliJack and to the workgroup
		switch.
		■ Make sure the upstream switch is
		configured and active

Link LED is not on	IntelliJack has no connection	■ Make sure network cable is properly
	to the network	terminated.
		■ Make sure the IntelliJack is connected
		to the network.
		■ Make sure the cable is plugged into
		the workgroup switch.
		■ Make sure the upstream switch is
		configured and active

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3Com manual Troubleshooting the NJ220, Troubleshooting Matrix

Contents

3CNJ220 3Com IntelliJack Switch NJ220User Guide 350 Campus Drive 3Com CorporationMarlborough, MA 01752-3064INSTALLING THE NJ220 INTELLIJACK CONTENTSINSTALLING THE CONFIGURATION MANAGERS USING THE LOCAL CONFIGURATION MANAGERPRODUCT SPECIFICATIONS WARRANTY AND REGULATORY INFORMATION TROUBLESHOOTING THE NJ220802.1X Settings Identification Settings Hardware SettingsLocally via an optional local power supply INSTALLING THE NJ220 INTELLIJACKFirmware upgrade Rate limiting Device discovery Port status state, duplex, speed StatisticsUser-configured VLAN IDs for management packets MAC filtering 802.1x port securityPort-based “calendar” function Indicates power status The following diagram shows the back view of the IntelliJackPower socket Can be used to power the IntelliJack with a local powerBefore You Begin Installing the Installing the IntelliJack consists of the following stepsIntelliJack Using an Integrated Switch with Power Over Ethernet NOTE For a list of power supplies that support the IntelliJack, go toUsing a Multi-port Ethernet Power Supply SupplyUsing a Single-port Ethernet Power Supply Using the 3Com Local Power SupplyInstalling the IntelliJack 2 Thread the network cables through the empty slot on the IntelliJack Commercial Building Telecommunications Cabling Standard n ANSI/TIA/EIA-568general guidelines If the end of the cable is terminated with a male connector, connect the network cable directly into the Ethernet uplink port 2 Securely mount the IntelliJack on a wall Connecting Devices to 5 Plug the local power supply into the power sourceYou can verify the IntelliJack installation by checking the LEDs the IntelliJack14 CHAPTER 1 INSTALLING THE NJ220 INTELLIJACK Configuration Managers INSTALLING THE 2 CONFIGURATION MANAGERS3 Click Next to continue 16 CHAPTER 2 INSTALLING THE CONFIGURATION MANAGERSInstalling the Local and Central Configuration Managers 18 CHAPTER 2 INSTALLING THE CONFIGURATION MANAGERS Installing the Local and Central Configuration Managers 20 CHAPTER 2 INSTALLING THE CONFIGURATION MANAGERS 9 Review the settings you selected and click the Install buttonInstalling the Web ConfigurationManager NOTE Make a note of the directory in which you install this program NOTE Make a note of the directory in which you install the JDKhttp//java.sun.com http//jakarta.apache.org/site/binindex.cgihttp//YourServerIPAddress8080/3ComIJNJ/main/index.jsp 24 CHAPTER 2 INSTALLING THE CONFIGURATION MANAGERS USING THE 3 LOCAL CONFIGURATION MANAGER 26 CHAPTER 3 USING THE LOCAL CONFIGURATION MANAGER Options Setting Advanced28 CHAPTER 3 USING THE LOCAL CONFIGURATION MANAGER Discovering NJ220 USING THE 4 CENTRAL CONFIGURATION MANAGERDevices on Your Network30 CHAPTER 4 USING THE CENTRAL CONFIGURATION MANAGER NOTE The default subnets are the ones your machine is connected toFill in the Subnet and Mask fields and click OK or 32 CHAPTER 4 USING THE CENTRAL CONFIGURATION MANAGER Properties Viewing Device34 CHAPTER 4 USING THE CENTRAL CONFIGURATION MANAGER General TabPort Information Product Information 36 CHAPTER 4 USING THE CENTRAL CONFIGURATION MANAGER Hardware Settings9 Click the ATU Table button to make changes to the NJ220’s ATU table. The screen you see allows you to display all MAC addresses that have been plugged into that IntelliJack or just the ones that you have “locked down” to it. You can refresh the list, add MAC addresses to it, edit existing ones or delete entries in the ATU table 38 CHAPTER 4 USING THE CENTRAL CONFIGURATION MANAGER Statistics Log SNMP Settings Advanced Settings 19 Click Exit to close the Device Property window feature ConfigurationChanging Device Configuration Changing Device3 Make sure the General Configuration tab is selected General ConfigurationIdentification Settings Hardware SettingsChanging Device Configuration Priority & VLAN Configuration Port Based Settings46 CHAPTER 4 USING THE CENTRAL CONFIGURATION MANAGER Other Priority & VLAN Settings 48 CHAPTER 4 USING THE CENTRAL CONFIGURATION MANAGER Security Configuration Password802.1X Ethernet switch no 802.1X control applies Page 52 CHAPTER 4 USING THE CENTRAL CONFIGURATION MANAGER SNMP ConfigurationEvent Alert Levels Advanced ConfigurationPort Based Controls 54 CHAPTER 4 USING THE CENTRAL CONFIGURATION MANAGERGlobal Setting Restoring Default ValuesDefault Value Priority OptionGroup Name Location Name Password IP Address DHCP Settings 41 When you are finished entering the configuration changes to your NJ220 IntelliJack, click the OK button and a Configuration Progress dialog box will appear. If you don’t want to apply the changes you made, click Exit to discard those changes and exit the window 58 CHAPTER 4 USING THE CENTRAL CONFIGURATION MANAGER Finding Computers Connected to NJ220Devices Firmware Upgrading the NJ220Upgrading the NJ220 Firmware 6 Click Next and a window like this will appear62 CHAPTER 4 USING THE CENTRAL CONFIGURATION MANAGER Viewing Log Files The Central Configuration Manager creates a log file with details of the firmware upgrades, configuration operations, and alert messages from the IntelliJack. This file is in the Central Configurator\Log subdirectory under the directory where you installed the IntelliJack configuration software. You can the log by selecting Log History from the View menu. A window like this will appear 64 CHAPTER 4 USING THE CENTRAL CONFIGURATION MANAGER Upgrades you have scheduled, follow these stepsTroubleshooting Matrix Troubleshooting the NJ220Solution Troubleshooting the NJ220Event/Message DescriptionSolve Problems Online Service BenefitsWarranty and ServicesDownloads Access SoftwareContact Us Telephone TechnicalProduct model name, part number, and serial number Telephone Number CountryCountry Telephone NumberHardware Product SpecificationsNetwork Interface PerformanceFeatures Product SpecificationsMIB Support EnvironmentRMON Counters Product Specifications Single delayed because the medium is busy during the first attemptTotal number of successfully transmitted frames that experienced exactly one collisionProduct Specifications REGULATORY INFORMATION Translation JAPAN VCCI COMPLIANCE