3Com DUA1770-0AAA04 manual Hardware Features Switches

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About the Switches 13

Summary of Table 3 summarizes the hardware features that are supported by the

Hardware Features Switches.

Table 3 Hardware features

Feature	Switch 4900 Series

Fast Ethernet	Switch 4900: 12 Auto-negotiating 100BASE-TX/1000BASE-T
and Gigabit	ports
Ethernet Ports	Switch 4900 SX: 12 Auto-negotiating 1000BASE-SX ports
	Switch 4900 SX: 12 Auto-negotiating 1000BASE-SX ports
	Switch 4924: 24 Auto-negotiating
	10BASE-T/100BASE-TX/1000BASE-T ports
	Switch 4950: 12 Auto-negotiating
	10BASE-T/100BASE-TX/1000BASE-T, 6 1000BASE-SX and
	6 GBIC ports
Addresses	■ Up to 12,000 supported
	■ Up to 64 permanent entries
Forwarding	Store and Forward
Modes

Duplex Modes

Flow Control

Smart auto-sensing

Traffic Prioritization

Layer 3

Switching

RPS Support

■Half duplex only supported on 10BASE-T/100BASE-TX/1000BASE-T ports in 10/100 Mbps mode

■All 1000 Mbps ports are full duplex only

Supported on all ports

■Supported on all 10BASE-T/100BASE-TX/1000BASE-T ports

■Not supported on 1000BASE-SX and GBIC ports Supported (IEEE Std 802.1D, 1998 Edition)

Four traffic queues per port Support for wire-speed IP routing

Connects to SuperStack 3 Advanced Redundant Power System (ARPS) (3C16071B)

XRN Support eXpandable Resilient Networking (XRN) support. Allows interconnection of two units to create a Distributed Fabric.

Mounting	19-inch rack or stand-alone mounting

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Contents SuperStack 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Setting UP for Management PIN-OUTS Page About this Guide Icon Description ConventionsConvention Description Documentation RelatedDocumentation documentation SuperStack 3 Switch 4900 Series Getting Started Guide Please include the following information when commenting3Com recommends that you copy the Docs/referenceguide Directory as a whole to maintain the structure of the filesIntroducing Introducing the Superstack 3 Switch 4900 Series Hardware Features Switches Switch 4900 front view Switch Front View DetailSwitch 4924 front view Ports cross-over Color Indicates Port Status LEDs Power/Self Test LEDModule Status LEDs Unit LEDsSwitch 4900 rear view Switch RearSwitch 4924 rear view Power SocketSupported by your Switch Default SettingsSwitch units, it is returned to these defaults Installing the Switch Choosing a Suitable Package ContentsSite Rack-mounting Flow through the side panels of the SwitchDesk, or attach it to a wall Have been fittedFitting a bracket for rack-mounting Repeat steps 2 and 3 for the other side of the SwitchInterconnecting two Switch 4900 units Powering-up Power-upSwitch SequencePower System output That contain alignment pins can cause damage to your Switch RJ-45 connector is now a grounded portYour Switch OptionsOperation Switch 4950 GbicApproved Gbic TransceiversInserting a Gbic Transceiver into a Switch Fiber SC connector Type 4 Gbic with internal Eeprom fittedSwitch 4950 Gbic Operation Installing the Switch Setting UP for Management Overview Setting UpAutomatic IP Configuration Manual IP ConfigurationSetting UP for Management Pre-requisites Manually Configuring IP InformationConfiguring the Workstation with IP Information Connecting the Workstation to the SwitchSetting Up the Switch with IP Information Using Command Line Interface via Telnet Example top-level command line interface menu 19,200 baud Data bits Connecting a workstation to the Switch via the console portSetting Up the Switch with IP Information Viewing Configured IPAutomatically Pre-requisites Viewing IP Information via the Console Port Example top-level command line interface menu Refer to Setting Up Command Line Interface Management on Network Using Telnet Command LineInterface Management CLI Management viaInterface Setting Up WebChoosing a Browser Http//xxx.xxx.xxx.xxx Over the NetworkDefault Users Setting Up SnmpPasswords Security Device User Modify operation on the web interface User Default Name Password Access LevelFor Technical Support information, see Appendix D Problem SolvingSolutions below Solving ProblemsPower LED does not light On powering-up, the Power/Self Test LED lights yellowSolving Hardware ProblemsFan failure warning message is received For further information about RMON, refer to StatusUnit fails, no Snmp fan failure message is received Error message indicating that the Gbic transceiver is faultyIP Addressing Solving Communication ProblemsHow do you obtain a registered IP Address? Safety Information This must be approved for the country where it is used Important Safety InformationImportant Safety Information 3CGBIC91 Gbic SX 3CGBIC92 Gbic LX Schko ’information de Sécurité ImportanteAppendix a Safety Information 3CGBIC91 Gbic SX 3CGBIC92 Gbic LX Der Netzstecker muß die Norm CEE 7/7 erfüllen Schuko Wichtige SicherheitsinformationenWichtige Sicherheitsinformationen Appendix a Safety Information Null Modem Cable 9-pin to RS-232 25-pin PC-AT Serial CablePin to 9-pin Modem Cable ConnectorsRJ-45 Pin AssignmentsPin Number 10/100BASE-T 1000BASE-T Appendix B PIN-OUTS Safety Physical DimensionsPower Consumption Same unless otherwise statedProtocols Used for Administration Power SupplyHeat Dissipation Standards SupportedOnline Technical ServicesUsername anonymous From this region, email Asia, Pacific RimEurope, Middle East and Africa From this region, enter the URLEurope, Middle East and Africa Asia, Pacific RimCountry Telephone Number Asia, Pacific Rim Country Telephone Number Latin America Numbers IndexPasswords Regulatory Notices