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WITCH

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Switch

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Front

View Detail

Figure 1

Switch 4900 — front view

Figure 2

Switch 4900 SX — front view

Содержание SuperStack 3 4900

Страница 1: ...http www 3com com Part No DUA1770 0AAA04 Published August 2002 SuperStack 3 Switch 4900 Series Getting Started Guide Switch 4900 3C17700 Switch 4900 SX 3C17702 Switch 4924 3C17701 Switch 4950 3C17706 ...

Страница 2: ... on any licensed program or documentation contained in or delivered to you in conjunction with this User Guide Unless otherwise indicated 3Com registered trademarks are registered in the United States and may or may not be registered in other countries 3Com the 3Com logo and SuperStack are registered trademarks of 3Com Corporation IEEE and 802 are registered trademarks of the Institute of Electric...

Страница 3: ...nt View Detail 14 100 1000BASE T and 10 100 1000BASE T Ports 16 1000BASE SX Ports 16 GBIC Ports 16 LEDs 17 Switch Rear View Detail 18 Unit Information Label 19 Power Socket 19 Redundant Power System Socket 19 Console Port 20 Expansion Module Slot 20 Default Settings 20 2 INSTALLING THE SWITCH Package Contents 22 Choosing a Suitable Site 22 Rack mounting 23 Placing Units On Top of Each Other 24 Cre...

Страница 4: ...onfiguring IP Information 37 Connecting to a Front Panel Port 37 Connecting to the Console Port 40 Viewing Automatically Configured IP Information 43 Using 3Com Network Supervisor 43 Connecting to the Console Port 44 Methods of Managing a Switch 46 Command Line Interface Management 46 Web Interface Management 47 SNMP Management 47 Setting Up Command Line Interface Management 48 CLI Management via ...

Страница 5: ...ante 63 Wichtige Sicherheitsinformationen 66 B PIN OUTS Null Modem Cable 69 PC AT Serial Cable 69 Modem Cable 70 RJ 45 Pin Assignments 70 C TECHNICAL SPECIFICATIONS D TECHNICAL SUPPORT Online Technical Services 75 World Wide Web Site 75 3Com Knowledgebase Web Services 75 3Com FTP Site 76 Support from Your Network Supplier 76 Support from 3Com 77 Email Support 77 Telephone Support 77 Returning Prod...

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Страница 7: ...0 model however all procedures apply to all the other Switches listed unless otherwise stated The guide is intended for use by network administrators who are responsible for installing and setting up network equipment consequently it assumes a basic working knowledge of LANs Local Area Networks If the information in the release notes that are shipped with your product differ from the information i...

Страница 8: ...mple To change your password use the following syntax system password password In this example you must supply a password for password Commands The word command means that you must enter the command exactly as shown and then press Return or Enter Commands appear in bold Example To display port information enter the following command bridge port detail The words enter and type When you see the word...

Страница 9: ...mat on the CD ROM that accompanies the Switch Management Interface Reference Guide This guide provides detailed information about the web interface and command line interface that enable you to manage the Switch It is supplied in HTML format on the CD ROM that accompanies the Switch There are other publications you may find useful Documentation accompanying the Advanced Redundant Power System Docu...

Страница 10: ...ntation Guide is stored in the Docs implementation directory of the CD ROM 3Com recommends that you copy the Docs referenceguide directory as a whole to maintain the structure of the files Product Registration You can register your SuperStack 3 Switch on the 3Com Web site to receive up to date information on your product http support 3com com registration frontpg pl Documentation Comments Your sug...

Страница 11: ...n about the hardware The information for all the Switches in the Switch 4900 Series is the same unless otherwise stated About the Switches Summary of Hardware Features Switch Front View Detail 100 1000BASE T and 10 100 1000BASE T Ports 1000BASE SX Ports GBIC Ports LEDs Switch Rear View Detail Unit Information Label Power Socket Redundant Power System Socket Console Port Expansion Module Slot Defau...

Страница 12: ...ur existing 10 100 1000 Mbps devices and high performance workgroups to a fiber or copper gigabit backbone or server connection You can also interconnect any combination of two Switches from the SuperStack 4900 Series or 3Com Switch 4050 4060 range to create an XRN Distributed Fabric This allows you to create a highly resilient core around which you can build your network For more information abou...

Страница 13: ...permanent entries Forwarding Modes Store and Forward Duplex Modes 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 Flow Control Supported on all ports Smart auto sensing Supported on all 10BASE T 100BASE TX 1000BASE T ports Not supported on 1000BASE SX and GBIC ports Traffic Prioritization Supported IEEE Std 802 1D 1998...

Страница 14: ...14 CHAPTER 1 INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIES Switch Front View Detail Figure 1 Switch 4900 front view Figure 2 Switch 4900 SX front view ...

Страница 15: ...s They cannot be used as standard traditional telephone sockets or to connect the unit to a traditional PBX or public telephone network Only connect RJ 45 data connectors network telephony systems or network telephones to these sockets Either shielded or unshielded data cables with shielded or unshielded jacks can be connected to these data sockets ...

Страница 16: ...924 and 4950 1000BASE SX Ports The default state for these ports is auto negotiation enabled where the speed duplex and flow control modes are negotiated As the speed and duplex modes are fixed by the media type only the flow control is negotiated with the link partner Alternatively auto negotiation can be disabled and the flow control setting can be manually configured 1000BASE SX ports do not su...

Страница 17: ...bps on 4924 4950 link is present but the port is disabled Not applicable on 4900 SX Off No link is present Module Status LEDs Green The Module is installed and supported The Link Status has been determined for a single port Module Yellow The Module is installed and supported The Module has multi ports or there is no Link for a single port Module Yellow flashing The Module is installed but not supp...

Страница 18: ...ACK 3 SWITCH 4900 SERIES Switch Rear View Detail Figure 5 Switch 4900 rear view Figure 6 Switch 4900 SX rear view Layer 3 LED Green The Switch software supports Layer 3 Off The Switch software does not support Layer 3 LED Color Indicates ...

Страница 19: ...ress of the Switch The serial number of the Switch You may need this information for fault reporting purposes Power Socket The Switch automatically adjusts its power setting to any supply voltage in the range 90 240 VAC Redundant Power System Socket To protect against internal power supply failure you can use this socket to connect a SuperStack 3 Advanced Redundant Power System RPS to the Switch S...

Страница 20: ...ese 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 VL...

Страница 21: ...e Switch or carrying out any maintenance procedures you must read the safety information provided in Appendix A of this guide AVERTISSEMENT Consignes de sécurité Avant d installer ou d enlever tout composant du Switch ou d entamer une procédure de maintenance lisez les informations relatives à la sécurité qui se trouvent dans l Appendice A de ce guide VORSICHT Sicherheitsinformationen Bevor Sie Ko...

Страница 22: ...ed to provide ventilation These fans have a high audible output When deciding where to position the Switch ensure that Cabling is located away from sources of electrical noise such as radios transmitters and broadband amplifiers power lines and fluorescent lighting fixtures The Switch is accessible and cables can be connected easily Water or moisture cannot enter the case of the Switch Air flow is...

Страница 23: ...or each Switch WARNING The Switch should only be used in a rack if it is mounted on runners a shelf or a tray to support the weight The rack mount kits alone are not sufficient to support the weight of the switch The rack mount kits must not be used to suspend the Switch from under a table or desk or attach it to a wall CAUTION Disconnect all cables from the Switch before continuing Remove all sel...

Страница 24: ... top of the other If you are mixing a variety of SuperStack 3 Switch and Hub units the smaller units must be positioned at the top If you are placing Switch units one on top of the other you must use the self adhesive rubber pads supplied Apply the pads to the underside of each Switch sticking one in the marked area at each corner Place the Switch units on top of each other ensuring that the pads ...

Страница 25: ... can be used to connect two Interconnect Modules It is not possible to interconnect the Switch 4900 Series and Switch 4050 4060 units with any other 3Com device 3Com strongly recommends that you upgrade all Switches to be interconnected to the latest software agent 3Com recommends that you initialize a Switch unit that has previously been used elsewhere in your network before you interconnect to a...

Страница 26: ...ibe how to get your Switch powered up and ready for operation Powering up the Switch Use the following sequence of steps to power up the Switch 1 Plug the power cord into the power socket at the rear of the Switch 2 Plug the other end of the power cord into your power outlet The Switch powers up and runs through its Power On Self Test POST which takes approximately 10 seconds Checking for Correct ...

Страница 27: ...o ON OFF switch the only method of connecting or disconnecting mains power is by connecting or disconnecting the power cord Choosing the Correct 10 100 1000BASE T Cables If your Switch has 10 100 1000BASE T ports these ports are Auto MDIX that is they have a cross over capability These ports can automatically detect whether to operate in MDI or MDIX mode Therefore you can make a connection to one ...

Страница 28: ...your Switch has fiber ports you can choose from the following cable options The 1000BASE SX ports can be connected to multimode fiber cables only The 1000BASE LX and 1000BASE LH70 GBIC ports use multimode or single mode fiber optic cables CAUTION 3Com recommends that you use MT RJ cables that do not contain alignment pins as these are provided by the fiber socket Cables that contain alignment pins...

Страница 29: ...f approved GBIC transceivers for the Switch on the 3Com Corporation World Wide Web site enter this URL into your internet browser http www 3com com The URL is case sensitive Inserting a GBIC Transceiver To be recognised as valid the GBIC transceiver must have the following characteristics 1000BASE SX 1000BASE LX or 1000BASE LH70 media type 1000BASE SX GBIC transceiver Use this transceiver to conne...

Страница 30: ... the transceivers into a GBIC expansion port on the Switch a Orient the transceiver so that the fiber optic duplex subscriber connecter SC is toward you as shown in Figure 11 b Gently slide the transceiver into the GBIC port until it clicks into place 2 If you wish to remove the transceiver compress the side tabs and gently pull the transceiver out of the port CAUTION GBIC transceivers are keyed a...

Страница 31: ...ex SC connector on the network cable into the duplex SC connector on the transceiver 4 Connect the other end of the cable to a device fitted with an appropriate Gigabit Ethernet connection 5 Check the LEDs on the front of the Switch to ensure that it is operating correctly Refer to LEDs on page 17 for more information ...

Страница 32: ...32 CHAPTER 2 INSTALLING THE SWITCH ...

Страница 33: ...naging the Switch can help you to improve the efficiency of the Switch and therefore the overall performance of your network This chapter explains the initial set up of the Switch and the different methods of accessing the management software to manage a Switch It covers the following topics Setting Up Overview Manually Configuring IP Information Viewing Automatically Configured IP Information Met...

Страница 34: ...o actively manage your Switch For more information on default Plug and Play Setup Initial IP Information Setup Feature Management Power Up the Switch IP Information is automatically configured See page 35 Do you want to manually configure the IP information Connect to a front panel port and use the Web Interface or Command Line Interface See page 37 How do you want to manage your Switch See page 4...

Страница 35: ...ends that you configure the Switch IP information manually This makes management simpler and more reliable as it is not dependent on a DHCP or BootP server and eliminates the risk of the IP address changing If you wish to manually enter IP information for your Switch work through the Manually Configuring IP Information section on page 37 Automatic IP Configuration By default the Switch tries to co...

Страница 36: ...M that accompanies your Switch or on the 3Com Web site You should use the automatic IP configuration method if your network uses DHCP or BootP to allocate IP information or flexibility is needed If the Switch is re deployed onto a different subnet it will automatically reconfigure itself with an appropriate IP address instead of you having to manually reconfigure the Switch If you use the automati...

Страница 37: ...and line interface CLI Connecting to a Front Panel Port To set up your Switch manually you can make a connection to a front panel port You must do this whilst the Switch is offline that is before you connect the Switch to a network The procedure described in this section assumes the unit has been powered up in standalone mode and has the default IP address of 169 254 100 100 Pre requisites A works...

Страница 38: ...ring the Workstation with IP Information You need to change the IP address and subnet mask of the workstation that you have connected to the Switch Make a note of the existing settings so you can return to them later Change the workstation to the following settings IP address 169 254 100 99 Subnet mask 255 255 0 0 Setting Up the Switch with IP Information You are now ready to manually set up the S...

Страница 39: ...e information entered The initial set up of your Switch is now complete and the Switch is ready for you to set up your chosen management method See Methods of Managing a Switch on page 46 Using Command Line Interface via Telnet 1 To start a Telnet session to the unit click Start in Microsoft Windows 95 98 2000 NT a Click Run b In the dialogue box that appears type the default IP address of the uni...

Страница 40: ...mation change passwords and then given the option to carry out advanced configuration The initial set up of your Switch is now complete and the Switch is ready for you to set up your chosen management method See Methods of Managing a Switch on page 46 Connecting to the Console Port To set up your Switch manually you can alternatively make a connection to the console port this example describes a l...

Страница 41: ...o the Switch 1 Connect the workstation to the console port using a standard null modem cable as shown in Figure 15 Figure 15 Connecting a workstation to the Switch via the console port To connect the cable a Attach the female connector on the cable to the male connector on the console port of the Switch b Tighten the retaining screws on the cable to prevent it from being loosened c Connect the oth...

Страница 42: ...immediately press Return a few times until it starts 2 At the login and password prompts enter admin as your user name and press Return at the password prompt If you have logged on correctly the top level menu of the command line interface is displayed as shown in the example in Figure 16 Figure 16 Example top level command line interface menu 3 At the Select menu option prompt you can either ente...

Страница 43: ...itch You can discover the IP information in two ways Using 3Com Network Supervisor This application will auto discover the Switch and display the automatically allocated IP information assigned to the Switch Connecting to the Console Port Connect a workstation using a console cable to the console port of the Switch You can then view the IP information automatically assigned to the Switch using the...

Страница 44: ... you to communicate with the Switch via the console port directly or through a modem Documentation supplied with the terminal emulation software A suitable cable A standard null modem cable if you are connecting directly to the console port or A standard modem cable if you are connecting to the console port using a modem You can find pin out diagrams for both cables in Appendix B on page 69 A Cate...

Страница 45: ...tch to the network using an Ethernet cable As soon as a network connection is made the Switch begins the automatic IP configuration process The automatic IP configuration process usually completes within one minute If there is no response from a DHCP server within 30 seconds the Auto IP configuration mechanism attempts to allocate the default IP address 169 254 100 100 If this address is not avail...

Страница 46: ...Switch on page 46 If you do not intend to use the command line interface via the console port to manage the Switch you can disconnect the serial cable and close the terminal emulator software Methods of Managing a Switch Once you have completed the initial set up of your Switch you can decide how you wish to manage the Switch You can use one of the following methods Command line interface manageme...

Страница 47: ...ou to manage the Switch using a Web browser remotely over an IP network see Figure 21 Figure 21 Web interface management over the network Refer to Setting Up Web Interface Management on page 49 SNMP Management You can manage a Switch using any network management workstation running the Simple Network Management Protocol SNMP as shown in Figure 22 For example you can use the 3Com Network Supervisor...

Страница 48: ...console port CLI Management over the Network To manage a Switch using the command line interface over a network using Telnet 1 Ensure you have already set up the Switch with IP information as described in Setting Up Overview on page 34 2 Check that you have the IP protocol correctly installed on your management workstation You can check this by trying to browse the World Wide Web If you can browse...

Страница 49: ...command line interface for the Switch you wish to manage is displayed as shown in Figure 16 on page 42 Setting Up Web Interface Management This section describes how you can set up web interface management over the network Pre requisites Ensure you have already set up the Switch with IP information as described in Setting Up Overview on page 34 Ensure that the Switch is connected to the network us...

Страница 50: ...nage a Switch using the web interface over an IP network 1 Check that you have the IP protocol correctly installed on your management workstation You can check this by trying to browse the World Wide Web If you can browse the IP protocol is installed 2 Check you can communicate with the Switch by entering a ping command at the DOS prompt in the following format c ping xxx xxx xxx xxx where xxx xxx...

Страница 51: ... SNMP network management application software To manage your Switch using an SNMP network management application you need to specify SNMP community strings for the users defined on the Switch You can do this using the command line interface system management snmp community command refer to the command line interface section of the Management Interface Reference Guide for more information Default U...

Страница 52: ...Modify operation on the web interface For more information about default users and passwords refer to the Management Interface Reference Guide on the Switch CD ROM User Name Default Password Access Level monitor monitor monitor the user can view all manageable parameters except special security features but cannot change any manageable parameters manager manager manager the user can access and cha...

Страница 53: ...olving Communication Problems Solving Software Upgrade Problems If you experience a problem that is not listed here it may be included in the support section of the Superstack 3 Switch Management Interface Reference Guide on the CD ROM that accompanies your Switch To ensure this product provides optimum performance high speed fans are used to provide ventilation These fans have a high audible outp...

Страница 54: ... Test POST because of an internal problem The fault type will be indicated on the unit LEDs Contact your supplier for advice A link is connected and yet the Status LED for the port does not light Check that The Switch and the device at the other end of the link or cable are connected securely The devices at both ends of the link are powered up The quality of cable is satisfactory Auto negotiation ...

Страница 55: ...ays RMON Email Notification If configured you will receive notification of the fan failure via email SMS Short Message Service or pager RMON Trap If configured an RMON trap is generated and sent to the management workstation For further information about RMON refer to Chapter 7 Status Monitoring and Statistics in the Switch Implementation Guide supplied in PDF format on the CD ROM that accompanies...

Страница 56: ... command to determine whether a thermal shutdown has occurred 3 If no return the unit If yes check that The air vents are not obstructed The ambient temperatures and environmental conditions meet those specified in Appendix C 4 Power cycle the unit If a further thermal shutdown occurs and all environmental conditions are satisfactory return the unit to 3Com Error message indicating that the GBIC t...

Страница 57: ...rview of IP addressing and how to obtain a registered IP address IP Addressing To be managed correctly each device on your network for example a Switch or Hub must have a unique IP address IP addresses have the format n n n n where n is a decimal number between 0 and 255 An example IP address is 192 168 100 8 The IP address is split into two parts The first part 192 168 100 in the example identifi...

Страница 58: ...k 3Com suggests you use addresses in the series 192 160 100 X where X is a number between 1 and 254 with a subnet mask of 255 255 255 0 These suggested IP addresses are part of a group of IP addresses that have been set aside specially for use in house only These suggested IP addresses are part of a group of IP addresses that have been set aside specially for use in house only Solving Software Upg...

Страница 59: ...install or remove the unit AVERTISSEMENT Les avertissements présentent des consignes que vous devez respecter pour garantir votre sécurité personnelle Vous devez respecter attentivement toutes les consignes Nous vous demandons de lire attentivement les consignes suivantes de sécurité avant d installer ou de retirer l appareil VORSICHT Vorsicht enthalten Anweisungen die Sie zu Ihrer eigenen Sicherh...

Страница 60: ... EN60320 IEC320 appliance inlet U S A and Canada The cord set must be UL approved and CSA certified The minimum specification for the flexible cord is No 18 AWG Type SV or SJ 3 conductor The cord set must have a rated current capacity of at least 10A The attachment plug must be an earth grounding type with a NEMA 5 15P 15A 125V or NEMA 6 15P 15A 250V configuration United Kingdom only The supply pl...

Страница 61: ...n to the telecommunications system WARNING RJ 45 Ports These are shielded RJ 45 data sockets They cannot be used as standard traditional telephone sockets or to connect the unit to a traditional PBX or public telephone network Only connect RJ 45 data connectors network telephony systems or network telephones to these sockets Either shielded or unshielded data cables with shielded or unshielded jac...

Страница 62: ...at the fiber ports and fiber cable ends when they are powered up WARNING Use of controls or adjustments of performance or procedures other than those specified herein may result in hazardous laser emissions WARNING The Switch must only be fitted with 3Com approved GBIC transceivers as listed below 3CGBIC91 GBIC SX 3CGBIC92 GBIC LX 3CGBIC97 GBIC LH70 ...

Страница 63: ...oit respecter une configuration qui permet un branchement sur une entrée d appareil EN60320 CEI 320 Etats Unis et Canada Le cordon doit avoir reçu l homologation des UL et un certificat de la CSA Le cordon souple doit respecter à titre minimum les spécifications suivantes calibre 18 AWG type SV ou SJ à 3 conducteurs Le cordon doit être en mesure d acheminer un courant nominal d au moins 10 A La pr...

Страница 64: ...d accès RJ 45 Ceux ci sont protégés par des prises de données Ils ne peuvent pas être utilisés comme prises de téléphone conventionnelles standard ni pour la connection de l unité à un réseau téléphonique central privé ou public Raccorder seulement connecteurs de données RJ 45 systèmes de réseaux de téléphonie ou téléphones de réseaux à ces prises Il est possible de raccorder des câbles protégés o...

Страница 65: ...ts de câbles à fibres optiques tant qu ils sont sous tension AVERTISSEMENT L utilisation de contrôles de réglages de performances ou de procédures autres que ceux qui sont spécifiés au sein du présent document risquent d entraîner l exposition à des rayonnements laser dangereux AVERTISSEMENT Le commutateur ne doit être utilisé qu avec des modules Transceiver GBIC approuvés par 3Com 3CGBIC91 GBIC S...

Страница 66: ... werden soll VORSICHT Der Gerätestecker der Anschluß an das Gerät nicht der Wandsteckdosenstecker muß eine passende Konfiguration für einen Geräteeingang gemäß EN60320 IEC320 haben VORSICHT Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein Die Stromversorgung des Geräts kann nur durch Herausziehen des Gerätenetzkabels aus der Netzsteckdose unterbrochen werden VORSICHT Europe ...

Страница 67: ... VORSICHT Ist kein Erweiterungsmodul installiert überprüfen Sie bitte den Sitz der Stanzplatte indem Sie alle Schrauben mit einem geeigneten Werkzeug anziehen VORSICHT Bevor Sie den Schalter an das Stromversorgungsmodul Typ 3 anschließen lesen Sie bitte die Sicherheitshinweise in der Bedienungsanleitung für das Stromversorgungsmodul Typ 3 VORSICHT Faseroptikanschlüsse Optische Sicherheit Niemals e...

Страница 68: ...68 APPENDIX A SAFETY INFORMATION ...

Страница 69: ...B PIN OUTS Null Modem Cable 9 pin to RS 232 25 pin PC AT Serial Cable 9 pin to 9 pin ...

Страница 70: ...10 Pin assignments Pin Number 10 100BASE T 1000BASE T Ports configured as MDI 1 Transmit Data Bidirectional Data A 2 Transmit Data Bidirectional Data A 3 Receive Data Bidirectional Data B 4 Not assigned Bidirectional Data C 5 Not assigned Bidirectional Data C 6 Receive Data Bidirectional Data B 7 Not assigned Bidirectional Data D 8 Not assigned Bidirectional Data D ...

Страница 71: ...ed as MDIX 1 Receive Data Bidirectional Data B 2 Receive Data Bidirectional Data B 3 Transmit Data Bidirectional Data A 4 Not assigned Bidirectional Data D 5 Not assigned Bidirectional Data D 6 Transmit Data Bidirectional Data A 7 Not assigned Bidirectional Data C 8 Not assigned Bidirectional Data C ...

Страница 72: ...72 APPENDIX B PIN OUTS ...

Страница 73: ...7 in not including bulge Weight 6 91 Kg 15 23 lbs Environmental Requirements Operating Temperature 0 to 40 C 32 to 104 F Storage Temperature 10 to 70 C 14 to 158 F Operating Humidity 10 95 relative humidity non condensing Standards EN60068 to 3Com schedule Package testing paras 2 1 2 2 2 30 and 2 32 Operational testing paras 2 1 2 2 2 30 and 2 13 Safety Agency Certifications UL 1950 UL60950 EN6095...

Страница 74: ... A amps maximum Switch 4900 SX 3 A amps maximum Switch 4924 and 4950 4 5 A amps maximum Standards Supported SNMP SNMP protocol RFC 1157 MIB II RFC 1213 Bridge MIB RFC 1493 RMON MIB II RFC 2021 Remote Monitoring MIB RFC 1757 MAU MIB RFC 2239 Terminal Emulation Telnet RFC 854 Protocols Used for Administration UDP RFC 768 IP RFC 791 ICMP RFC 792 TCP RFC 793 ARP RFC 826 TFTP RFC 783 DHCP RFC 2131 RFC ...

Страница 75: ...ormation on the 3Com Corporation World Wide Web site enter this URL into your Internet browser http www 3com com This service provides access to online support information such as technical documentation and software as well as support options that range from technical education to maintenance and professional services 3Com Knowledgebase Web Services The 3Com Knowledgebase is a database of technic...

Страница 76: ...om Your Network Supplier If you require additional assistance contact your network supplier Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services including network planning installation hardware maintenance application training and support services When you contact your network supplier for assistance have the following information ready Product mod...

Страница 77: ...the list below Asia Pacific Rim From this region email apr_technical_support 3com com Europe Middle East and Africa From this region enter the URL http emea 3com com support email html Latin America Spanish speakers enter the URL http lat 3com com lat support form html Portuguese speakers enter the URL http lat 3com com br support form html English speakers email lat_support_anc 3com com Telephone...

Страница 78: ...070 700 770 7010 7289 01080 2783 0825 809 622 01805 404 747 06800 14466 1800 509359 1800 943 2632 199 161346 Luxembourg Netherlands Norway Poland Portugal South Africa Spain Sweden Switzerland U K 800 29880 0900 777 7737 815 33 047 00800 441 1357 707 200 123 0800 991196 9 021 60455 07711 14453 08488 50112 0870 241 3901 Latin America Antigua Argentina Aruba Bahamas Barbados Belize Bermuda Bonaire B...

Страница 79: ...ntry Telephone Number Country Telephone Number Asia Pacific Rim From anywhere in this region call 65 543 6500 phone 65 543 6348 fax Europe Middle East and Africa From anywhere in these regions call 44 0 1442 435529 From the following countries you may use the numbers shown Austria Belgium Flemish Belgium French Denmark Finland France Germany Hungary Ireland Israel Italy 01 7956 7124 070 700 000 07...

Страница 80: ...12 AT T 800 998 2112 AT T 800 998 2112 Guatemala Haiti Honduras Jamiaca Martinique Mexico Nicaragua Panama Paraguay Peru Puerto Rico Salvador Trinidad and Tobago Uruguay Venezuela Virgin Islands AT T 800 998 2112 57 1 657 0888 AT T 800 998 2112 1 800 998 2112 571 657 0888 01 800 849CARE AT T 800 998 2112 AT T 800 998 2112 54 11 4894 1888 AT T 800 998 2112 1 800 998 2112 AT T 800 998 2112 1 800 998...

Страница 81: ...e 8 cross over configuration 27 D default settings 20 users 51 E Ethernet address of the Switch 19 F factory defaults 20 G GBIC ports 16 H hardware features 13 I installing the Switch 21 prerequisites 23 interconnect cable 25 IP addressing registered 58 IP configuration 35 L LEDs 17 logging in as a default user 51 M MAC address of the Switch 19 management methods 46 preparing for 36 setting up 33 ...

Страница 82: ...nagement Protocol See SNMP SNMP 51 SNMP management 47 setting up 51 socket power 19 RPS 19 specifications system 73 straight through configuration 27 Switch 3C number 19 automatic setup 43 dimensions 73 Ethernet address 19 features 13 installation 21 23 interconnecting 24 MAC address 19 power socket 19 powering up 26 product name 19 rack mounting 23 RPS socket 19 serial number 19 size 73 unit info...

Страница 83: ...t so that equipment and receiver are on different branch circuits If necessary the user should consult the dealer or an experienced radio television technician for additional suggestions The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printi...

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