3Com 3C16491 manual Country Telephone Number

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Country

Telephone Number

Asia, Pacific Rim Telephone Technical Support and Repair

Australia	1 800 678 515
Hong Kong	800 933 486
India	+61 2 9424 5179 or
	000800 6501111
Indonesia	001 803 61 009
Japan	00531 616 439 or
	03 3507 5984
Malaysia	1800 801 777
New Zealand	0800 446 398
Pakistan	+61 2 9937 5083
Philippines	1235 61 266 2602 or
	1800 1 888 9469
P.R. of China	800 810 3033
Singapore	800 6161 463
S. Korea	080 333 3308
Taiwan	00801 611 261
Thailand	001 800 611 2000

You can also obtain support in this region using the following e-mail: apr_technical_support@3com.com

Or request a repair authorization number (RMA) by fax using this number: +65 543 6348

Europe, Middle East, and Africa Telephone Technical Support and Repair

From anywhere in these	+44 (0)1442 435529
regions, call:

From the following countries, you may use the numbers shown:

	Contact Us	79

Country	Telephone Number

Austria	0800 297 468
Belgium	0800 71429
Denmark	800 17309
Finland	0800 113153
France	0800 917959
Germany	0800 182 1502
Hungary	06800 12813
Ireland	1 800 553 117
Israel	1800 945 3794
Italy	800 879489
Luxembourg	800 23625
Netherlands	0800 0227788
Norway	800 11376
Poland	00800 4411 357
Portugal	800 831416
South Africa	0800 995 014
Spain	900 938 919
Sweden	020 795 482
Switzerland	0800 553 072
U.K.	0800 096 3266

You can also obtain support in this region using the following URL: http://emea.3com.com/support/email.html

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Contents 3C16491 Baseline Switch PWR Plus3Com Corporation 350 Campus Drive Marlborough MA USA Contents Snmp Regulatory Notices Glossary Index Page Conventions About this GuideProduct Registration Documentation CommentsAutonegotiating 10/100 Mbps Ports Overview of the Baseline SwitchFeatures and Capabilities Autosensing of MDI/MDIX ConnectionsFront Panel Physical FeaturesPower-over-Ethernet Capability Gigabit Combo Ports RJ-45/SFPGigabit Combo Ports RJ-45/SFP Link/Activity Status LEDs Rear Panel Power LEDPackage Contents Before You Begin Positioning the SwitchRack-Mounting or Free-Standing Using the Mounting KitPlacing Units On Top of Each Other Montagesatz AnweisungenChecking for Correct Operation Supplying Power to the SwitchApproved SFP Transceivers Using SFP TranceiversInserting an SFP Transceiver Inserting an SFP Transceiver Removing an SFP TransceiverPerforming Spot Checks Installing the Switch Running the Discovery Application Requirements for Accessing the Web InterfaceWelcome screen of Discovery appears Discovered Devices Screen Logging On to the Web InterfaceMenu Navigating the Web InterfaceLists the available items on the menu Menu Item Port Status ButtonsDhcp Assigned IP Address Accessing the Interface Without Using DiscoveryManually Assigned Static IP Address Device Summary Information Configuration OverviewPolling Interval Device ViewColor Key Administration SettingsModifying the IP Address Settings Automatic IP ConfigurationTo set the IP address for the Switch IP SetupRestore Configuration Backup ConfigurationUpgrade Screen Firmware UpgradeInitialize RebootUser Summary System AccessModify User Create UserRemove User System TimeSummary SetupSnmp Add Snmp Remove Configuring VLANsVlan Modify Port Modify VlanModify Port Screen RenamePort Detail RemoveVlan Detail Forwarding Tagged/Untagged Frames Sample Vlan ConfigurationsSetting Up Vlan Across Two Switches Setting Up Two VLANs on the Same SwitchSpanning Tree Tagged Vlan ConfigurationSpanning Tree Screen Igmp Query Igmp SnoopingBroadcast Storm PoE Broadcast Storm Setup ScreenAdministration Configuring Port SettingsDetail Port Administration Summary ScreenSpeed/Duplex for 1000 Mbps Connections Port Administration Setup ScreenGuidelines for Creating Trunks Link AggregationLink Aggregation Summary Screen CreateLink Aggregation Modify Screen ModifySpanning Tree per Port Spanning Tree Summary Screen Port Mirroring Spanning Tree Setup ScreenStatistics Port Mirroring Setup ScreenQoS VoIP Summary Screen QoS VoIP Traffic SettingsQoS VoIP Setup Screen Port SetupOUI Add OUI SummaryRadius Client SecurityRadius Client Detail Screen Configure802.1X Summary Screen 802.1X Settings802.1X Detail Screen Address Table MonitoringAddress Table Screen Cable DiagnosticsCable Diagnostic Screen DiagnosticsResetting to Factory Defaults TroubleshootingSolving LED Issues Forgotten PasswordForgotten Static IP Address Link/Activity LED is on, but network performance is poor Fiber cable is connected, but the Module Active LED is offAll ports appear to show continual activity If the Problem PersistsTroubleshoot Online Access Software Downloads Purchase Value-Added ServicesRegister Your Product Contact Us Telephone Technical Support and RepairCountry Telephone Number Latsupportanc@3com.com Electrical Related StandardsEnvironmental PhysicalAppendix B Technical Information Important Safety Information Safety InformationAppendix C Safety Information Regulatory Notices Page Auto-negotiation 1000BASE-TBandwidth Category 6 Cables Category 3 CablesCategory 5 Cables Category 5e CablesIeee 802.1Q Full DuplexHalf Duplex Ieee 802.1DNetwork LayerLink Aggregation MAC AddressSubnet Mask SwitchServer Subnet AddressVlan Numbers IndexIndex