3Com Hub 1000 SX manual Making Connections, A Using The Console Port, POST Messages

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3MAKING CONNECTIONS

3MAKING CONNECTIONS

Aggregating Servers	3-2
Connecting a Power Workgroup		3-2
Aggregating Switches	3-3
Mixing Connections	3-4
Connecting Through the Uplink		3-5
Troubleshooting 3-6

AUSING THE CONSOLE PORT

Requirements	A-2
Connecting the Console Port				A-2
With Power Connected			A-2
With Power Disconnected				A-3
POST Messages		A-3
Logging On	A-4
Changing the Password			A-5
Conﬁguring Port Settings			A-5
Disabling Ports		A-7
Disabling Auto-Negotiation				A-8
Conﬁguring the Uplink for Asymmetric Flow Control A-10
Displaying Hub Status A-12
Restoring the Factory Default Settings					A-14
Updating the Firmware Image				A-15
Checking the Firmware Version A-15
Transferring the Firmware Image File					A-16
Logging Off	A-17
Troubleshooting		A-17

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Contents User Guide SuperStack II Hub 1000 SX A member of the 3Com SuperStack II System 3Com Corporation 5400 Bayfront Plaza Santa Clara, California UNITED STATES GOVERNMENT LEGENDS2 INSTALLING THE HUB CONTENTSABOUT THIS GUIDE 1 INTRODUCTION 3 MAKING CONNECTIONS A USING THE CONSOLE PORTPOST Messages SPECIFICATIONS GLOSSARY INDEX 3COM CORPORATION LIMITED WARRANTYTECHNICAL SUPPORT FCC CLASS A VERIFICATION STATEMENTPage FIGURES Page TABLES Port Conﬁguration MenuPage ABOUT THIS GUIDE IconNotice Type DescriptionCommands SETDEFAULT !0 -IP NETaddr =Menu commands and buttonsHub 1000 SX INTRODUCTIONGeneral Description Downlinks and UplinkFull-Duplex OperationFlow Control Features and FunctionsINSTALLING THE HUB SuperStack II Hub 1000 SX User GuideHub Description The hub’s front and rear panels are shown in Figure Installing and Connecting the Hub4 Repeat steps 2 and 3 for the other side of the hub Connector Table 2-1 Downlink ConnectionsMaximum Cable TypeTable 2-2 Hub 1000 SX Indicators IndicatorColor StatusGBIC Module Connecting aThe gigabit interface connector GBIC port on the rear panel of the Using Optional Power SystemsPower Modules Cabling OptionsA hub connects to a UPS unit through the hub’s AC power cord Table 2-4 Advanced RPS Conﬁguration OptionsYou can connect a UPS unit to an Advanced RPS unit as long as you do not exceed the maximum wattage 325 watts for the UPS unit. To verify that the UPS unit’s maximum wattage is not exceeded, calculate the total power consumption of all units connected to the Advanced RPS. If the result is less than 325 watts, your conﬁguration is safe if the result is greater than 325 watts, then there are too many units connected to the Advanced RPS Page MAKING CONNECTIONS Table 3-1 Gigabit Ethernet Maximum Cable LengthsPower Workgroup AggregatingServers connecting to the network backbone. See FigureThe Hub 1000 SX does not support bandwidth aggregation trunking SwitchesYou can use the Hub 1000 SX downlinks to aggregate 10/100 Mbps Figure 3-3 Aggregated Switches Connection 3-4 CHAPTER 3 MAKING CONNECTIONSFigure 3-4 Mixed Connection ConnectingThe best use of the hub uplink is as a backbone connection to a 3Com Figure 3-6 Uplink Connection to a 10/100 Mbps Switch Table 3-2 Troubleshooting TipsSymptom SolutionUSING THE CONSOLE PORT Connecting the With PowerRequirements Console Portfrom power To connect the console port when the hub is disconnectedConnecting the Console Port A-3 Disconnectedmessage, return the hub to the supplier Logging OnAfter 4 minutes of inactivity, the CLI logs off automatically Password Port SettingsChanging the ConﬁguringTo display the Port Conﬁguration menu Configuring Port Settings Table A-2 Port Conﬁguration MenuA-8 APPENDIX A USING THE CONSOLE PORT Configuring Port Settings and be conﬁgured to receive pause frames Configuring Port Settings A-11 Displaying Hub Statusmatrix, Y indicates yes and n indicates no. See Table A-3 Table A-3 Hub Status InformationDisplaying Hub Status A-13 Restoring the Factory Default Settings A-14 APPENDIX A USING THE CONSOLE PORTUpdating the Firmware Imageentering option Checking theXmodem-CRC To transfer the ﬁrmware image ﬁle Logging Off during a ﬁrmware update, the CLI displays the following messagelog in again. To restart the ﬁle transfer, repeat steps 6 and Table A-5 Fatal Error Messages Table A-4 File Transfer Error MessagesWhile saving port settings or Physical Dimensions SPECIFICATIONSEnvironmental Operating Ranges Page Services Board ServiceTECHNICAL SUPPORT Online TechnicalAccess by Analog Modem Access by Digital Modem1 408 654 C-2 APPENDIX C TECHNICAL SUPPORTLocal access numbers are available within the following countries Santa Clara, California Czech Republic/SlovakCentral European HQ 305 261 3266 Miami, FloridaTo obtain an RMA number, call or fax Page GLOSSARY Carrier Sense Multiple Access/Collision Detection. Channel access cable is based on CSMA/CD Carrier Sense Multiple Access/Collisionaccess method transmission of light signalsIEEE incomingﬂow control Mbpscontrol. See also asymmetric ﬂow control, ﬂow control, pause frame INDEX SymbolsNumbers Page Switch 9300 3-2, 3-3 Page 3Com Corporation LIMITED WARRANTY STANDARD WARRANTY SERVICEHARDWARE SOFTWARELIMITATION OF LIABILITY FCC CLASS A VERIFICATION STATEMENTGOVERNING LAW