3Com 3C17700 - SuperStack 3 Switch 4900 Getting Started Manual
Superstack 3 4900 series switch
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Summary of Contents for 3Com 3C17700 - SuperStack 3 Switch 4900
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Page 1: Getting Started Guide
SuperStack ® Switch 4900 Family Getting Started Guide Switch 4900 (3C17700) Switch 4900 SX (3C17702) Switch 4924 (3C17701) Switch 4950 (3C17706) http://www.3com.com/ Part No. DUA1770-0AAA05 Published September 2003... - Page 2 3Com Corporation reserves the right to revise this documentation and to make changes in content from time MA 01752-3064 to time without obligation on the part of 3Com Corporation to provide notification of such revision or change. 3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but not limited to, the implied warranties, terms or conditions of merchantability, satisfactory quality, and fitness for a particular purpose.
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Page 3: Table Of Contents
ONTENTS BOUT UIDE Conventions Related Documentation Accessing Online Documentation Documentation Comments 4900 F NTRODUCING THE UPER TACK WITCH AMILY 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 —... - Page 4 Manually Configuring IP Information Connecting to a Front Panel Port Connecting to the Console Port Viewing Automatically Configured IP Information Using 3Com Network Supervisor Connecting to the Console Port Methods of Managing a Switch Command Line Interface Management Web Interface Management...
- Page 5 Solving Hardware Problems Solving Communication Problems Solving Software Upgrade Problems AFETY NFORMATION Power Cord Set — Japan Important Safety Information L’information de Sécurité Importante Wichtige Sicherheitsinformationen OUTS Null Modem Cable PC-AT Serial Cable Modem Cable RJ-45 Pin Assignments ECHNICAL PECIFICATIONS BTAINING UPPORT FOR YOUR RODUCT...
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Page 7: About This Guide
Most user guides and release notes are available in Adobe Acrobat Reader Portable Document Format (PDF) or HTML on the 3Com World Wide Web site: http://www.3com.com/... -
Page 8: Conventions
BOUT UIDE Conventions Table 1 Table 2 list conventions that are used throughout this guide. Table 1 Notice Icons Icon Notice Type Description Information note Information that describes important features or instructions. Caution Information that alerts you to potential loss of data or potential damage to an application, system, or device. -
Page 9: Related Documentation
There are other publications you may find useful: Documentation accompanying the Advanced Redundant Power System. Documentation accompanying the Expansion Modules. Documentation accompanying 3Com Network Supervisor. This is supplied on the CD-ROM that accompanies the Switch. Accessing Online The CD-ROM supplied with your Switch contains the following online... -
Page 10: Documentation Comments
The PDF Implementation 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. Documentation Your suggestions are very important to us. They will help make our Comments documentation more useful to you. -
Page 11: Introducing The Super Stack 3 Switch 4900 Family
NTRODUCING THE 4900 UPER TACK WITCH AMILY This chapter contains introductory information about the Switch 4900, 4900 SX, 4924 and 4950 and how they can be used in your network. It covers summary information about the hardware. The information for all the Switches in the Switch 4900 Family is the same unless otherwise stated. -
Page 12: About The Switches
You can also interconnect any combination of two Switches from the ® SuperStack 4900 Family or 3Com Switch 40x0 Family 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 about interconnecting Switches, see “Creating an XRN Distributed Fabric”... -
Page 13: Summary Of Hardware Features
About the Switches Summary of Table 3 summarizes the hardware features that are supported by the Hardware Features Switches. Table 3 Hardware features Feature Switch 4900 Family 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 4924: 24 Auto-negotiating 10BASE-T/100BASE-TX/1000BASE-T ports Switch 4950: 12 Auto-negotiating... -
Page 14: Switch Front View Detail
1: I 4900 F HAPTER NTRODUCING THE UPER TACK WITCH AMILY Switch Front — Figure 1 Switch 4900 — front view View Detail Switch 4900 Status Module Unit green = 1000 Mbps yellow = 100 Mbps = enabled, link OK flashing = disabled Power/Self Test... - Page 15 Switch — Front View Detail Figure 3 Switch 4924 — front view Figure 4 Switch 4950 — front view 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.
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Page 16: 100/1000Base-T And 10/100/1000Base-T Ports
1: I 4900 F HAPTER NTRODUCING THE UPER TACK WITCH AMILY 100/1000BASE-T and The 100BASE-TX/1000BASE-T and 10BASE-T/100BASE-TX/1000BASE-T 10/100/1000BASE-T ports have RJ-45 connectors and are configured as Auto MDIX Ports (cross-over). The default state for these ports is auto-negotiation enabled, where the speed, duplex and flow control modes of a link are automatically detected to provide the highest available bandwidth with the link partner. -
Page 17: Leds
Switch — Front View Detail LEDs Table 4 lists LEDs visible on the front of the Switch, and how to read their status according to color. For information on using the LEDs for problem solving, see “Checking for Correct Operation of LEDs” page Table 4 LED behavior Color... -
Page 18: Switch - Rear View Detail
1: I 4900 F HAPTER NTRODUCING THE UPER TACK WITCH AMILY Color Indicates Green flashing The Switch is either downloading software or is initializing (which includes running a Power On Self Test). Yellow The Switch has failed its Power On Self Test. The Switch is not receiving power. -
Page 19: Unit Information Label
Figure 8 Switch 4950 — rear view Unit Information This label shows the following: Label The 3Com product name of the Switch The 3Com 3C number of the Switch The unique MAC address (Ethernet address) of the Switch The serial number of the Switch You may need this information for fault reporting purposes. -
Page 20: Console Port
1: I 4900 F HAPTER NTRODUCING THE UPER TACK WITCH AMILY 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. -
Page 21: Installing The Switch
NSTALLING THE WITCH This chapter contains the information you need to install and set up the Switch. It covers the following topics: Package Contents Choosing a Suitable Site Rack-mounting Placing Units On Top of Each Other Creating an XRN Distributed Fabric The Power-up Sequence Switch 4950 —... -
Page 22: Package Contents
Water or moisture cannot enter the case of the Switch. Air flow is not restricted around the Switch or through the vents in the side of the Switch. 3Com recommends that you provide a minimum of 25 mm (1 in.) clearance. -
Page 23: Rack-Mounting
Rack-mounting The air is as free from dust as possible. The unit is installed in a clean, air conditioned environment. No more than four Switch units are placed on top of one another, if the units are free-standing. The Switch is situated away from sources of conductive (electrical) dust, for example laser printers. -
Page 24: Placing Units On Top Of Each Other
Switch units on top of each other, ensuring that the pads of the upper unit line up with the recesses of the lower unit. Creating an XRN SuperStack 3 Switch 4900 Family units and 3Com Switch 40x0 units can Distributed Fabric be interconnected to create an XRN Distributed Fabric and then treated as a single manageable unit with one IP address. -
Page 25: How To Interconnect Units
Kit or the GBIC Module. The documentation can also be located on the 3Com Web site. Figure 10 Two Switch 4900 units interconnected using the XRN Interconnect... - Page 26 HAPTER NSTALLING THE WITCH Only 3Com XRN Interconnect Cables can be used to connect two XRN Interconnect Modules. It is not possible to interconnect the SuperStack 3 Switch 4900 Family and 3Com Switch 40x0 units with any other 3Com device.
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Page 27: The Power-Up Sequence
The Power-up Sequence The Power-up The following sections describe how to get your Switch powered-up and Sequence ready for operation. Powering-up the Use the following sequence of steps to power-up the Switch. 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. -
Page 28: Choosing The Correct 10/100/1000Base-T Cables
See Table 3Com recommends that you use at least Category 5 twisted pair cable — the maximum segment length for this type of cable is 100 m (328 ft). Table 7 Cables required to connect the Switch to other devices if... -
Page 29: Choosing The Correct Fiber Cables
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 can cause damage to your Switch. -
Page 30: Inserting A Gbic Transceiver
HAPTER NSTALLING THE WITCH To access the latest list of 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 Inserting a GBIC To be recognised as valid, the GBIC transceiver must have the following... -
Page 31: Removing A Gbic Transceiver
Switch 4950 — GBIC Operation Figure 11 Inserting a GBIC Transceiver into a Switch 4950 3 The transceiver connects to the network using a duplex SC connector. Attach a male duplex SC connector on the network cable into the duplex SC connector on the transceiver. - Page 32 2: I HAPTER NSTALLING THE WITCH...
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Page 33: Setting U P For Management
ETTING P FOR ANAGEMENT Your Switch can operate in its default state, that is, you can install it and it will work straight away (plug-and-play). However, to make full use of the features offered by the Switch, and to change and monitor the way it works, you have to access the management software that resides on the Switch. -
Page 34: Setting Up Overview
How do you want to view the automatically How do you want to connect to the Switch? configured IP information? Connect to a front Connect to the console Use 3Com Network Connect to the console panel port and use the port and use the Supervisor (3NS). -
Page 35: Ip Configuration
(Static IP addresses are necessary to ensure that the Switch is always allocated the same IP information.) For most installations, 3Com recommends 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. -
Page 36: Preparing For Management
For detailed information about the specific web interface operations and command line interface commands and problem solving, refer to the “Management Interface Reference Guide” on the CD-ROM that is supplied with the Switch or on the 3Com Web site. -
Page 37: Manually Configuring Ip Information
Manually Configuring IP Information Manually You can manually configure the Switch IP information in the following Configuring IP ways: Information Connecting to a front panel port — Connect a workstation using an Ethernet cable to a front panel port of the Switch. You can then manually enter IP information using the web interface or the command line interface (CLI). - Page 38 3: S HAPTER ETTING P FOR ANAGEMENT Connecting the Workstation to the Switch 1 Connect the workstation to a front panel port using an Ethernet cable as shown in Figure Figure 13 Connecting a workstation to the Switch via a front panel port To connect the cable: a Attach an RJ-45 connector at one end of the Ethernet cable to the Network Interface Card (NIC) in the workstation.
- Page 39 Manually Configuring IP Information If there is no response, wait for one minute then re-enter the default IP address. 3 At the login and password prompts, enter admin as your user name and press Return at the password prompt (default user name and password). If you have logged on correctly, a set of Getting Started pages are displayed.
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Page 40: Connecting To The Console Port
3: S HAPTER ETTING P FOR ANAGEMENT Figure 14 Example top-level command line interface menu 4 At the Select menu option prompt you can either: enter the protocol ip basicConfig command. At the Enter configuration method prompt enter manual. The screen prompts you to enter IP information. - Page 41 Manually Configuring IP Information 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.
- Page 42 3: S HAPTER ETTING P FOR ANAGEMENT no parity 1 stop bit no hardware flow control Refer to the documentation that accompanies the terminal emulation software for more information. Setting Up the Switch with IP Information You are now ready to manually set up the Switch with IP information using the command line interface.
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Page 43: Viewing Automatically Configured Ip Information
IP information automatically assigned to the Switch using the command line interface (CLI). Using 3Com Network You can use the 3Com Network Supervisor application provided on the Supervisor CD-ROM that accompanies your Switch to discover the automatically allocated IP information. -
Page 44: Connecting To The Console Port
P FOR ANAGEMENT If your network does not have a DHCP or BootP server, the workstation running 3Com Network Supervisor must be on the same subnet as the Switch, because Auto-IP addresses are non-routable. Connecting to the Alternatively, you can view the automatically configured IP information... - Page 45 Viewing Automatically Configured IP Information b Tighten the retaining screws on the cable to prevent it from being loosened. c Connect the other end of the cable to one of the serial ports (also known as a COM port) on your workstation. 2 Open your terminal emulation software and configure the COM port settings to which you have connected the cable.
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Page 46: Methods Of Managing A Switch
3: S HAPTER ETTING P FOR ANAGEMENT Figure 18 Example top-level command line interface menu 4 At the Select menu option prompt enter the protocol ip interface summary command. At the Select IP interfaces prompt enter all. A summary of the automatically allocated IP information is displayed. -
Page 47: Web Interface 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 software that is provided on the CD-ROM that accompanies your Switch. -
Page 48: Setting Up Command Line Interface Management
3: S HAPTER ETTING P FOR ANAGEMENT Figure 22 SNMP management over the network Refer to “Setting Up SNMP Management” page Setting Up This section describes how you can set up command line interface Command Line management using a local console port connection or over the network. Interface Management CLI Management via... -
Page 49: Setting Up Web Interface Management
Setting Up Web Interface Management >telnet xxx.xxx.xxx.xxx (where xxx.xxx.xxx.xxx is the IP address of the Switch) If opening a Telnet session via third party software you will need to enter the IP address in the format suitable for that software. 5 At the login and password prompts, enter admin as your user name and press Return at the password prompt (or the password of your choice if you have already modified the default passwords). -
Page 50: Web Management Over The Network
3: S HAPTER ETTING P FOR ANAGEMENT For the browser to operate the web interface correctly, JavaScript and Cascading Style Sheets must be enabled on your browser. These features are enabled on a browser by default. You will only need to enable them if you have changed your browser settings. -
Page 51: Setting Up Snmp Management
VLAN 1 (the Default VLAN). By default, all ports on the Switch are in VLAN 1. You can use the 3Com Network Supervisor application that is provided on the CD-ROM that accompanies your Switch to provide SNMP management for your Switch. If you use 3Com Network Supervisor it automatically loads the correct MIBs and necessary files onto your workstation. -
Page 52: Changing Default Passwords
3: S HAPTER ETTING P FOR ANAGEMENT Table 9 Default Users User Default Name 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 change the operational parameters but not special/security features admin security —... -
Page 53: Problem Solving
ROBLEM OLVING This chapter helps you to diagnose and solve problems you may have with the operation of your Switch. There is also an explanation of IP addressing. The topics covered are: Solving Problems Indicated by LEDs Solving Hardware Problems Solving Communication Problems Solving Software Upgrade Problems If you experience a problem that is not listed here, it may be included in... -
Page 54: Solving Problems Indicated By Leds
4: P HAPTER ROBLEM OLVING Solving Problems If the LEDs on the Switch indicate a problem, refer to the list of suggested Indicated by LEDs solutions below. The Power LED does not light Check that the power cable is firmly connected to the Switch and to the supply outlet. -
Page 55: Solving Hardware Problems
Solving Hardware Problems Solving Hardware In the rare event of your Switch unit experiencing a hardware failure, Problems refer to the list of suggested solutions below. An expansion module is installed and the unit will not power up Ensure that the expansion module is fully seated in the slot and the connectors are engaged so that the securing screws can be tightened. - Page 56 The Switch has identified that the GBIC does not meet the minimum requirements for the Switch and has disabled the port. To correct this problem, completely remove the GBIC and replace it with a 3Com approved GBIC. See “Approved GBIC Transceivers”on...
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Page 57: Solving Communication Problems
IP address of the router. The Switch’s IP address has been entered correctly in your network management application (for example 3Com Network Supervisor). The following is an brief overview of IP addressing, and how to obtain a registered IP address. -
Page 58: Solving Software Upgrade Problems
If your IP network is internal to your organization only, that is, you do not access the Internet, you may use any arbitrary IP address as long as it is not being used by another device on your network. 3Com suggests you use addresses in the range 192.168.0.0 to 192.168.255.255 with a subnet mask of 255.255.255.0. -
Page 59: A Safety Information
AFETY NFORMATION You must read the following safety information before carrying out any installation or removal of components, or any maintenance procedures on the Switch 4900, 4900 SX, 4924, or 4950. WARNING: Warnings contain directions that you must follow for your personal safety. -
Page 60: Important Safety Information
A: S PPENDIX AFETY NFORMATION Important Safety Information WARNING: Installation and removal of the unit must be carried out by qualified personnel only. WARNING: If installing the Switch in a stack with SuperStack 3 units that are narrower than the Switch, the Switch unit must be installed below the narrower units. - Page 61 Important Safety Information WARNING: The socket outlet must be near to the unit and easily accessible. You can only remove power from the unit by disconnecting the power cord from the outlet. WARNING: This unit operates under SELV (Safety Extra Low Voltage) conditions according to IEC 60950.
- Page 62 A: S PPENDIX AFETY NFORMATION WARNING: Fiber Optic ports - Optical Safety Never look at the transmit laser while it is powered-up. Never look directly 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.
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Page 63: L'information De Sécurité Importante
L’information de Sécurité Importante L’information de Sécurité Importante AVERTISSEMENT: L'installation et la dépose de ce groupe doivent être confiés à un personnel qualifié. AVERTISSEMENT: Si vous entassez l'unité Switch avec les unités SuperStack 3 Hub, l'unité Switch doit être installée en dessous des unités Hub plus étroites. - Page 64 A: S PPENDIX AFETY NFORMATION AVERTISSEMENT: La prise secteur doit se trouver à proximité de l’appareil et son accès doit être facile. Vous ne pouvez mettre l’appareil hors circuit qu'en débranchant son cordon électrique au niveau de cette prise. AVERTISSEMENT: L’appareil fonctionne à une tension extrêmement basse de sécurité...
- Page 65 L’information de Sécurité Importante AVERTISSEMENT: Ports pour fibres optiques – sécurité sur le plan optique Ne regardez jamais le laser tant qu'il est sous tension. Ne regardez jamais directement le port à fibres optiques et les embouts de câbles à fibres optiques tant qu'ils sont sous tension.
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Page 66: Wichtige Sicherheitsinformationen
A: S PPENDIX AFETY NFORMATION Wichtige Sicherheitsinformationen VORSICHT: Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen. VORSICHT: Wenn die Switch Einheit in einer Stapel mit anderen SuperStack 3 Hub Einheiten eingebaut werden soll, muß die Switch Einheit unter die schmaleren Hub Einheiten eingebaut werden. - Page 67 Wichtige Sicherheitsinformationen VORSICHT: RJ-45-Porte. Diese Porte sind geschützte Datensteckdosen. Sie dürfen weder wie normale traditionelle Telefonsteckdosen noch für die Verbindung der Einheit mit einem traditionellem privatem oder öffentlichem Telefonnetzwerk gebraucht werden. Nur RJ-45-Datenanscluße, Telefonnetzsysteme or Netztelefone an diese Steckdosen anschließen. Entweder geschützte oder ungeschützte Buchsen dürfen an diese Datensteckdosen angeschlossen werden.
- Page 68 A: S PPENDIX AFETY NFORMATION...
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Page 69: B Pin - Outs
OUTS Null Modem Cable 9-pin to RS-232 25-pin PC-AT Serial Cable 9-pin to 9-pin... -
Page 70: Modem Cable
B: P PPENDIX OUTS Modem Cable 9-pin to RS-232 25-pin RJ-45 Pin Pin assignments are identical for 10/100BASE-T and 1000BASE-T RJ-45 Assignments connectors. Table 10 Pin assignments Pin Number 10/100BASE-T 1000BASE-T Ports configured as MDI Transmit Data + Bidirectional Data A+ Transmit Data - Bidirectional Data A- Receive Data +... - Page 71 RJ-45 Pin Assignments Table 11 Pin assignments Pin Number 10/100BASE-T 1000BASE-T Ports configured as MDIX Receive Data + Bidirectional Data B+ Receive Data - Bidirectional Data B- Transmit Data + Bidirectional Data A+ Not assigned Bidirectional Data D+ Not assigned Bidirectional Data D- Transmit Data - Bidirectional Data A-...
- Page 72 B: P PPENDIX OUTS...
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Page 73: Specifications
–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, EN60950, CSA 22.2 No. - Page 74 C: T PPENDIX ECHNICAL PECIFICATIONS Heat Dissipation Switch 4900: 1050 BTU/hour maximum Switch 4900 SX: 560 BTU/hour maximum Switch 4924: 870 BTU/hour maximum Switch 4950: 685 BTU/hour maximum Power Supply AC Line Frequency 50/60 Hz Input Voltage Options 90–240 VAC Switch 4900: Current Rating 4 A (amps) (maximum)
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Page 75: Upport For Your
Contact your authorized 3Com reseller or 3Com for additional product and support information. Troubleshoot You will find support tools posted on the 3Com web site at Online http://www.3com.com/ 3Com Knowledgebase helps you troubleshoot 3Com products. This query-based interactive tool is located at and contains thousands of http://knowledgebase.3com.com... -
Page 76: Access Software Downloads
Software Updates are the bug fix / maintenance releases for the version Downloads of software initially purchased with the product. In order to access these Software Updates you must first register your product on the 3Com web site at http://eSupport.3com.com/ First time users will need to apply for a user name and password. - Page 77 Telephone Technical Support and Repair To send a product directly to 3Com for repair, you must first obtain a return authorization number (RMA). Products sent to 3Com, without authorization numbers clearly marked on the outside of the package, will be returned to the sender unopened, at the sender’s expense. If your...
- Page 78 Telephone Number Latin America Telephone Technical Support and Repair Antigua 1 800 988 2112 Guatemala AT&T +800 998 2112 Argentina 0 810 444 3COM Haiti 57 1 657 0888 Aruba 1 800 998 2112 Honduras AT&T +800 998 2112 Bahamas...
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Page 79: Index
3C number 19 installing the Switch 21 access levels of default users 51 approved GBIC transceivers 29 prerequisites 23 automatic setup 43 interconnect cable 25 3Com Network Supervisor 43 IP addressing console port 44 registered 57 IP configuration 35 cable 10/100/1000BASE-T 28... - Page 80 NDEX GBIC 16 power socket 19 troubleshooting 11, 53 powering-up a Switch 27 problem solving 11, 53 communication problems 57 hardware problems 55 unit information label 19 IP addressing 55 LEDs 54 product name 19 web interface management 47 setting up 49 rack mounting a Switch 23 Redundant Power System.
- Page 81 Warning: This is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. You must only insert a 3Com approved GBIC transceiver into the Switch. These are listed in the “Approved GBIC Transceivers” section of the Getting Started Guide.
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