3Com Hub 1000 SX manual Introduction, General Description

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INTRODUCTION

1

INTRODUCTION

 

Gigabit Ethernet technology allows signal transmission at the rate of one

 

gigabit per second (1 Gbps, or 1000 Mbps), while continuing to support

 

IEEE 802.3 CSMA/CD local area networks. Using this technology, you can

 

add gigabit bandwidth to critical areas of a network and fully leverage

 

investments in Ethernet and Fast Ethernet products.

 

 

Hub 1000 SX

The 3Com® SuperStack® II Hub 1000 SX Gigabit Ethernet full-duplex

General Description

repeater (part number 3C510-SX) combines the low cost and simplicity

 

of a hub with the high performance and efficient throughput of a switch.

 

You can use the Hub 1000 SX to:

 

Aggregate servers

 

Aggregate 10/100 Mbps switches

 

Provide gigabit bandwidth to a power workgroup that is running a

 

high-bandwidth application such as medical imaging, video editing,

 

film postproduction, CAD/CAM, or digital prepress

 

The Hub 1000 SX is an eight-port repeater. All ports transmit and receive

 

at a speed of one gigabit per second. The hub forwards all incoming

 

packets (without filtering them) to all links except the originating

 

link, thus providing a shared bandwidth domain. Like a switch, the

 

Hub 1000 SX uses full-duplex ports and packet flow control to increase

 

bandwidth and ensure reliable performance.

 

The hub is ready to use and requires no configuration. However, some

 

configuration options are available through the console interface for use

 

in exceptional cases.

 

The Hub 1000 SX is part of the 3Com SuperStack II system and can

 

be used with the SuperStack II Advanced Redundant Power System

 

(Advanced RPS) and the SuperStack II Uninterruptible Power System (UPS),

 

which provide fail-safe operation and a constant power supply.

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Contents User Guide SuperStack II Hub 1000 SXA member of the 3Com SuperStack II System UNITED STATES GOVERNMENT LEGENDS 3Com Corporation 5400 Bayfront Plaza Santa Clara, California2 INSTALLING THE HUB CONTENTSABOUT THIS GUIDE 1 INTRODUCTION 3 MAKING CONNECTIONS A USING THE CONSOLE PORTPOST Messages GLOSSARY INDEX 3COM CORPORATION LIMITED WARRANTY SPECIFICATIONSTECHNICAL SUPPORT FCC CLASS A VERIFICATION STATEMENTPage FIGURES Page Port Configuration Menu TABLESPage Icon ABOUT THIS GUIDENotice Type DescriptionSETDEFAULT !0 -IP NETaddr = CommandsMenu commands and buttonsHub 1000 SX INTRODUCTIONGeneral Description and Uplink DownlinksFull-Duplex OperationFlow Control Functions Features andSuperStack II Hub 1000 SX User Guide INSTALLING THE HUBHub Description The hub’s front and rear panels are shown in Figure Connecting the Hub Installing and4 Repeat steps 2 and 3 for the other side of the hub Table 2-1 Downlink Connections ConnectorMaximum Cable TypeIndicator Table 2-2 Hub 1000 SX IndicatorsColor StatusGBIC Module Connecting aThe gigabit interface connector GBIC port on the rear panel of the Power Systems Using OptionalCabling Options Power ModulesTable 2-4 Advanced RPS Configuration Options A hub connects to a UPS unit through the hub’s AC power cordYou 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 Table 3-1 Gigabit Ethernet Maximum Cable Lengths MAKING CONNECTIONSAggregating Power WorkgroupServers 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 3-4 CHAPTER 3 MAKING CONNECTIONS Figure 3-3 Aggregated Switches ConnectionFigure 3-4 Mixed Connection ConnectingThe best use of the hub uplink is as a backbone connection to a 3Com Table 3-2 Troubleshooting Tips Figure 3-6 Uplink Connection to a 10/100 Mbps SwitchSymptom SolutionUSING THE CONSOLE PORT With Power Connecting theRequirements Console PortTo connect the console port when the hub is disconnected from powerConnecting the Console Port A-3 Disconnectedmessage, return the hub to the supplier Logging OnAfter 4 minutes of inactivity, the CLI logs off automatically Port Settings PasswordChanging the ConfiguringTo display the Port Configuration menu Table A-2 Port Configuration Menu Configuring Port SettingsA-8 APPENDIX A USING THE CONSOLE PORT Configuring Port Settings and be configured to receive pause frames Configuring Port Settings A-11 Hub Status Displayingmatrix, Y indicates yes and n indicates no. See Table A-3 Table A-3 Hub Status InformationDisplaying Hub Status A-13 A-14 APPENDIX A USING THE CONSOLE PORT Restoring the Factory Default SettingsFirmware Image Updating theentering 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 Board Service ServicesTECHNICAL SUPPORT Online TechnicalAccess by Digital Modem Access by Analog Modem1 408 654 C-2 APPENDIX C TECHNICAL SUPPORTLocal access numbers are available within the following countries Czech Republic/Slovak Santa Clara, CaliforniaCentral European HQ 305 261 3266 Miami, FloridaTo obtain an RMA number, call or fax Page GLOSSARY cable is based on CSMA/CD Carrier Sense Multiple Access/Collision Carrier Sense Multiple Access/Collision Detection. Channel accessaccess method transmission of light signalsincoming IEEEflow control Mbpscontrol. See also asymmetric flow control, flow control, pause frame INDEX SymbolsNumbers Page Switch 9300 3-2, 3-3 Page STANDARD WARRANTY SERVICE 3Com Corporation LIMITED WARRANTYHARDWARE SOFTWARELIMITATION OF LIABILITY FCC CLASS A VERIFICATION STATEMENTGOVERNING LAW