3Com DUA1770-0AAA04 manual Default Settings, Supported by your Switch

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20CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIES

Console Port The console port allows you to connect a terminal and perform remote or local out-of-band management. The console port uses a standard null modem cable and is set to auto-baud (up to a maximum of 19200 baud), 8 data bits, no parity and 1 stop bit.

Expansion Module You can use this slot to install an Expansion Module. Contact your

	Slot supplier for further information on the range of Expansion Modules
		supported by your Switch.
		WARNING: When an Expansion Module is not installed, ensure the
		blanking plate is fitted by tightening all screws with a suitable tool.

Default Settings		Table 5 shows the default settings for the Switches. If you initialize one of
		the Switch units, it is returned to these defaults.
		Table 5 Default Setting

		Feature	Switch 4900 Series

		Port Status	Enabled
		Port Speed	Auto-negotiated
		Duplex Mode	Auto-negotiated
		Flow Control	Auto-negotiated
		Broadcast Storm Control	Enabled
			High threshold: 3000 broadcast frames per
			second — Notify and filter
			Low threshold: 1500 broadcast frames per
			second — Notify and unfilter
		Virtual LANs (VLANs)	All ports belong to the untagged Default VLAN
			(VLAN 1)
		Multicast Filtering	IGMP filtering enabled
		Rapid Spanning Tree Protocol	Enabled
		Link Aggregation Control	Enabled
		Protocol (LACP)
		Smart Auto-sensing	Switch 4900, 4924, and 4950: Enabled
			Switch 4900 SX: Not applicable
		IP Address	169.254.100.100*
		Subnet Mask	255.255.0.0

* This default IP address is used if the unit is operating in standalone mode, and/or no other Switches on the network have this IP address. If this default IP address is already in use then the Switch detects this and configures itself with an IP address in the range 169.254.1.0 to 169.254.254.255.

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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 Convention Description ConventionsIcon Description Documentation documentation RelatedDocumentation Please include the following information when commenting SuperStack 3 Switch 4900 Series Getting Started Guide3Com 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 Front View Detail Switch 4900 front viewSwitch 4924 front view Ports cross-over Power/Self Test LED Color Indicates Port Status LEDsModule Status LEDs Unit LEDsSwitch Rear Switch 4900 rear viewPower Socket Switch 4924 rear viewSwitch units, it is returned to these defaults Default SettingsSupported by your Switch Installing the Switch Site Package ContentsChoosing a Suitable Flow through the side panels of the Switch Rack-mountingDesk, or attach it to a wall Have been fittedRepeat steps 2 and 3 for the other side of the Switch Fitting a bracket for rack-mountingInterconnecting two Switch 4900 units Power-up Powering-upSwitch SequencePower System output RJ-45 connector is now a grounded port That contain alignment pins can cause damage to your SwitchYour Switch OptionsSwitch 4950 Gbic OperationApproved Gbic TransceiversFiber SC connector Type 4 Gbic with internal Eeprom fitted Inserting a Gbic Transceiver into a SwitchSwitch 4950 Gbic Operation Installing the Switch Setting UP for Management Setting Up OverviewManual IP Configuration Automatic IP ConfigurationSetting UP for Management Manually Configuring IP Information Pre-requisitesSetting Up the Switch with IP Information Connecting the Workstation to the SwitchConfiguring the Workstation with IP Information Using Command Line Interface via Telnet Example top-level command line interface menu Connecting a workstation to the Switch via the console port 19,200 baud Data bitsSetting Up the Switch with IP Information Automatically Configured IPViewing 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 Command Line Network Using TelnetInterface Management CLI Management viaChoosing a Browser Setting Up WebInterface Over the Network Http//xxx.xxx.xxx.xxxPasswords Setting Up SnmpDefault Users User Default Name Password Access Level Security Device User Modify operation on the web interfaceProblem Solving For Technical Support information, see Appendix DSolving Problems Solutions belowPower LED does not light On powering-up, the Power/Self Test LED lights yellowProblems Solving HardwareFan failure warning message is received For further information about RMON, refer to StatusError message indicating that the Gbic transceiver is faulty Unit fails, no Snmp fan failure message is receivedSolving Communication Problems IP AddressingHow do you obtain a registered IP Address? Safety Information Important Safety Information This must be approved for the country where it is usedImportant Safety Information 3CGBIC91 Gbic SX 3CGBIC92 Gbic LX ’information de Sécurité Importante SchkoAppendix a Safety Information 3CGBIC91 Gbic SX 3CGBIC92 Gbic LX Wichtige Sicherheitsinformationen Der Netzstecker muß die Norm CEE 7/7 erfüllen SchukoWichtige Sicherheitsinformationen Appendix a Safety Information Pin to 9-pin PC-AT Serial CableNull Modem Cable 9-pin to RS-232 25-pin Connectors Modem CableRJ-45 Pin AssignmentsPin Number 10/100BASE-T 1000BASE-T Appendix B PIN-OUTS Physical Dimensions SafetyPower Consumption Same unless otherwise statedPower Supply Protocols Used for AdministrationHeat Dissipation Standards SupportedServices Online TechnicalUsername anonymous Asia, Pacific Rim From this region, emailEurope, Middle East and Africa From this region, enter the URLAsia, Pacific Rim Europe, Middle East and AfricaCountry Telephone Number Asia, Pacific Rim Country Telephone Number Latin America Index NumbersPasswords Regulatory Notices