3Com 3812 - SuperStack 3 Switch Getting Started Manual
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3Com 3812 - SuperStack 3 Switch Getting Started Manual

Getting started guide
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SuperStack
Switch 3848
Getting Started Guide
3C17401
3C17400
3CR17402-91
http://www.3com.com/
Part No. DUA1740-0AAA03 Rev. 01
Published September 2004
3 Switch 3812, Switch 3824, and
®

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  • Page 1 SuperStack 3 Switch 3812, Switch 3824, and ® Switch 3848 Getting Started Guide 3C17401 3C17400 3CR17402-91 http://www.3com.com/ Part No. DUA1740-0AAA03 Rev. 01 Published September 2004...
  • Page 2 3Com Corporation reserves the right to revise this documentation and to make changes in content from time MA USA 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.

  • Page 3: Table Of Contents

    ONTENTS BOUT UIDE Conventions Related Documentation Accessing Online Documentation Documentation Comments 3812, NTRODUCING THE UPER TACK WITCH 3824, 3848 WITCH WITCH About the Switch Summary of Hardware Features Switch — Front View Detail 10BASE-T/ 100BASE-TX/ 1000BASE-T Ports Dual Personality SFP Ports Console Port LEDs Switch —...
  • Page 4 IP Configuration Preparing for Management Manually Configuring IP Information 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 AFETY NFORMATION Important Safety Information L’information de Sécurité Importante Wichtige Sicherheitsinformationen Power Cord Set — Japan OUTS Null Modem Cable PC-AT Serial Cable Modem Cable RJ-45 Pin Assignments ECHNICAL PECIFICATIONS Switch 3812, Switch 3824, and Switch 3848 BTAINING UPPORT FOR YOUR RODUCT Register Your Product to Gain Service Benefits Purchase Value-Added Services...

  • Page 7: About This Guide

    BOUT UIDE ® This guide provides all the information you need to install and use 3Com SuperStack ® 3 Switch 3812 (3C17401), Switch 3824 (3C17400), or Switch 3848 (3CR17402-91) in its default state. The guide is intended for use by network administrators who are responsible for installing and setting up network equipment;...

  • 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

    Switch. There are other publications you may find useful: Documentation accompanying the SFP Transceivers. ■ 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 NTRODUCING THE UPER TACK 3812, S 3824, WITCH WITCH 3848 WITCH This chapter contains introductory information about the Switch 3812, Switch 3824, and Switch 3848 and how they can be used in your network. It covers summary information about the hardware and the following topics: About the Switch ■...

  • Page 12: Introducing The Super Stack 3 Switch

    1: I 3812, S 3824, 3848 HAPTER NTRODUCING THE UPER TACK WITCH WITCH WITCH About the Switch The Switch 3812, Switch 3824 and Switch 3848 units are 10/100/1000 Mbps Ethernet Switches which consist of either: 12 10BASE-T/100BASE-TX/1000BASE-T RJ-45 ports (Switch 3812) or ■...

  • Page 13: Switch - Front View Detail

    Switch — Front View Detail Feature Switch 3812, Switch 3824, and Switch 3848 RPS Support Connects to SuperStack 3 Advanced Redundant Power System (ARPS). (Switch 3848 only) Mounting 19-inch rack or stand-alone mounting Switch Front — View Detail Figure 1 Switch 3812 — front view Figure 2 Switch 3824 —...

  • Page 14: 10Base-T/ 100Base-Tx/ 1000Base-T Ports

    1: I 3812, S 3824, 3848 HAPTER NTRODUCING THE UPER TACK WITCH WITCH WITCH Figure 3 Switch 3848 — 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.

  • Page 15: Console Port

    Switch — Front View Detail using SFP transceivers to provide connectivity between the Switch and remote 1000 Mbps workgroups or to create a high capacity aggregated link backbone connection. The SFP ports are capable of auto-negotiating flow control. As the speed and duplex modes are fixed by the media type, only the flow control is negotiated with the link partner.

  • Page 16: Switch Rear View Detail

    1: I 3812, S 3824, 3848 HAPTER NTRODUCING THE UPER TACK WITCH WITCH WITCH Color Indicates No link is present. Power LED (Switch 3812 and Switch 3824) Green The Switch is powered-up and operating normally. The Switch has a fault with the Power Supply Unit. The Switch is not receiving power or there is a fault with the Power Supply Unit.

  • Page 17: Power Socket

    Default Settings — Figure 5 Switch 3848 rear view Power Socket Redundant Power System Socket Power Socket Each Power Supply automatically adjusts its power setting to any power voltage in the range 100-240 VAC. Redundant Power To protect against internal power supply failure, you can use this socket System Socket to connect the Switch to a SuperStack 3 Advanced Redundant Power (Switch 3848 only)
  • Page 18 1: I 3812, S 3824, 3848 HAPTER NTRODUCING THE UPER TACK WITCH WITCH WITCH If you initialize a Switch unit by selecting System > Control > Initialize in the Web interface or by entering system control initialize in the Command Line Interface, the following settings are retained to allow you to connect to and manage the Switch: IP Address ■...

  • Page 19: Installing The Switch

    NSTALLING THE WITCH This chapter contains the information you need to install and set up the Switch 3812, Switch 3824, or Switch 3848. It covers the following topics: Package Contents ■ Choosing a Suitable Site ■ Rack-mounting ■ Placing Units On Top of Each Other ■...

  • Page 20: Package Contents

    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. Air temperature around the Switch does not exceed 40 °C (104 °...

  • Page 21: Rack-Mounting

    Rack-mounting If the Switch is installed in a 19-inch rack or closed assembly its local air temperature may be greater than room ambient temperature. The air is as free from dust as possible. ■ The Switch is situated away from sources of conductive (electrical) ■...

  • Page 22: Placing Units On Top Of Each Other

    2: I HAPTER NSTALLING THE WITCH Figure 6 Fitting a bracket for rack-mounting You must use the screws supplied with the securing brackets. Damage caused to the unit by using incorrect screws invalidates your warranty. 4 Repeat steps 2 and 3 for the other side of the Switch. 5 Insert the Switch into the 19-inch rack and secure with suitable screws (not provided).

  • Page 23: 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 24: Choosing The Correct 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 25: Sfp Operation

    SFP Operation CAUTION: If you want to install the Switch using a Category 5E or Category 6 cable, 3Com recommends that you briefly connect the cable to a grounded port before connecting network equipment. If you do not, the cable’s Electrostatic Discharge (ESD) may damage the Switch's port.
  • Page 26 If the SFP transceiver is faulty, it will not operate within the Switch. See “Solving Hardware Problems” page 3Com recommends that you only use SFPs supplied by 3Com. If the SFP transceiver is invalid it will not be recognized by the Switch. Use the following sequence of steps to activate the SFP ports: 1 The SFP transceiver is keyed and there is only one way in which it can be installed correctly.

  • Page 27: Removing An Sfp Transceiver

    SFP Operation Figure 7 Inserting an SFP Transceiver Product label Suitable port on host Switch 5 Use and appropriate cable to connect the transceiver to a suitable device. 6 Check the LEDs on the front of the Switch to ensure that it is operating correctly.
  • Page 28 2: I HAPTER NSTALLING THE WITCH...

  • Page 29: 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 30: 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 31: 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 server, and eliminates the risk of the IP address changing.

  • Page 32: Preparing For Management

    “Management Interface Reference Guide” on the CD-ROM that is supplied with the Switch or on the 3Com Web site. Manually You can manually configure the Switch IP information in the following...
  • Page 33 Manually Configuring IP Information Pre-requisites A workstation with terminal emulation software installed, such as ■ Microsoft Hyperterminal. This software allows you to communicate with the Switch via the console port directly, or through a modem. Documentation supplied with the terminal emulation software. ■...
  • Page 34 3: S HAPTER ETTING P FOR ANAGEMENT To connect the cable: a Switch 3812 and Switch 3824: Insert one end of the null modem cable into the console port of the Switch. Switch 3848: Insert the RJ-45 end of the RJ-45 to DB9 converter cable into the console port of the Switch.
  • Page 35 Manually Configuring IP Information Figure 10 Example top-level command line interface menu 3 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. enter the gettingStarted command.

  • Page 36: Viewing Automatically Configured Ip Information

    IP address the Switch will be given. Refer to the documentation that accompanies your DHCP server. If your network does not have a DHCP 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...
  • Page 37 Viewing Automatically Configured IP Information 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. An RJ-45 to DB9 converter cable.
  • Page 38 3: S HAPTER ETTING P FOR ANAGEMENT no hardware flow control ■ Refer to the documentation that accompanies the terminal emulation software for more information. Viewing IP Information via the Console Port You are now ready to view the automatically allocated IP information using the command line interface.

  • Page 39: Methods Of Managing A Switch

    Methods of Managing a Switch 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” page 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.

  • Page 40: Web Interface Management

    You can manage a Switch using any network management workstation running the Simple Network Management Protocol (SNMP) as shown in Figure 16. For example, you can use the 3Com Network Supervisor software that is provided on the CD-ROM that accompanies your Switch. Figure 16 SNMP management over the network...

  • Page 41: Cli Management Via The Console Port

    Setting Up Command Line Interface Management CLI Management via To manage a Switch using the command line interface via the local the Console Port console port connection: 1 Ensure you have connected your workstation to the console port correctly as described in “Connecting to the Console Port”...

  • Page 42: Setting Up Web Interface Management

    3: S HAPTER ETTING P FOR ANAGEMENT Setting Up Web This section describes how you can set up web interface management Interface over the network. Management Pre-requisites Ensure you have already set up the Switch with IP information as ■ described in “Setting Up Overview”...

  • Page 43: Web Management Over The Network

    VLAN (VLAN 1 by default). 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.

  • Page 44: Default Users And Passwords

    3: S HAPTER ETTING P FOR ANAGEMENT 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 —...

  • Page 45: 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 ■...

  • Page 46: 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 or Power/Self Test LED does not light Check that the power cable is firmly connected to the Switch and to the supply outlet.

  • Page 47: Solving Hardware Problems

    Solving Hardware Problems A link is connected and yet the Port 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 ■...
  • Page 48 The air vents are not obstructed. ■ The ambient temperatures and environmental conditions meet those ■ specified in Appendix 4 Power cycle the unit. If a further thermal shutdown occurs, and all environmental conditions are satisfactory, return the unit to 3Com.

  • Page 49: Solving Communication Problems

    The Switch has identified that the SFP does not meet the minimum requirements for the Switch and has disabled the port. To correct this problem, completely remove the SFP and replace it with a 3Com approved SFP. See ““Approved SFP Transceivers”...

  • Page 50: 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 51: 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 3812, Switch 3824, or Switch 3848. WARNING: Warnings contain directions that you must follow for your personal safety.

  • Page 52: 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 a Switch in a stack with SuperStack 3 units that are narrower, the deeper units must be installed below the narrower units.
  • Page 53 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 54: L'information De Sécurité Importante

    A: S PPENDIX AFETY NFORMATION L’information de Sécurité Importante AVERTISSEMENT: L'installation et la dépose de ce groupe doivent être confiés à un personnel qualifié. AVERTISSEMENT: Si vous superposez un switch plus etroit que ceux qui sont sur une pile, if fallait entasser ce switch au dessous des autres. AVERTISSEMENT: Vous devez mettre l’appareil à...
  • Page 55 L’information de Sécurité Importante 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 56: Wichtige Sicherheitsinformationen

    A: S PPENDIX AFETY NFORMATION du présent document risquent d'entraîner l'exposition à des rayonnements laser dangereux. Wichtige Sicherheitsinformationen VORSICHT: Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen. VORSICHT: Wenn Sie einen Schalter zusammen mit kleineren Einheiten in einem Stack aufstellen, muss die tiefste Einheit unterhalb der kleineren Einheiten aufgestellt werden.

  • Page 57: Power Cord Set - Japan

    Power Cord Set — Japan 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.
  • Page 58 A: S PPENDIX AFETY NFORMATION...

  • Page 59: In Outs

    OUTS Null Modem Cable Figure 17 9-pin to RS-232 25-pin (Switch 3812 and Switch 3824) Figure 18 RJ-45 to RS-232 25-pin (Switch 3848)

  • Page 60: Pc-At Serial Cable

    B: P PPENDIX OUTS PC-AT Serial Cable Figure 19 9-pin to 9-pin (Switch 3812 and Switch 3824) Figure 20 RJ-45 to 9-pin (Switch 3848)

  • Page 61: Modem Cable

    Modem Cable Modem Cable Figure 21 9-pin to RS-232 25-pin (Switch 3812 and Switch 3824) Figure 22 RJ-45 to RS-232 25-pin (Switch 3848) RJ-45 Pin Pin assignments are identical for 10/100 and 1000 RJ-45 connectors. Assignments Table 10 Pin assignments Pin Number 10/100 1000...
  • Page 62 B: P PPENDIX OUTS Pin Number 10/100 1000 Not assigned Bidirectional Data C- Receive Data – Bidirectional Data B- Not assigned Bidirectional Data D+ Not assigned Bidirectional Data D- Table 11 Pin assignments Pin Number 10/100 1000 Ports configured as MDIX Receive Data + Bidirectional Data B+ Receive Data -...

  • Page 63: 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 60950, EN60950, CSA 22.2 No.
  • Page 64 C: T PPENDIX ECHNICAL PECIFICATIONS Input Voltage Options 100–240 VAC Current Rating 0.44 A maximum (Switch 3812) 0.69 A maximum (Switch 3824) 1.25 A maximum (Switch 3848)

  • Page 65: Upport For Your

    3Com Extended Warranty and Professional Services is available at http://www.3com.com/ 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 ■...

  • Page 66: 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 67 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 68 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...

  • Page 69: Index

    39 preparing for 32 setting up 29, 30 access levels of default users 44 manual setup automatic setup 36 console port 32 3Com Network Supervisor 36 MDI configuration 24 console port 36 MDIX configuration 24 cable passwords 10/100/1000 24...
  • Page 70 NDEX setting up 43 specifications, system 63 straight-through configuration 24 Switch automatic setup 36 dimensions 63 features 12 installation 19, 21 powering-up 23 rack mounting 21 size 63 weight 63 system specifications 63 troubleshooting 45 web interface management 40 setting up 42...
  • Page 71 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 SFP transceiver into the Switch. These are listed in the "Approved SFP Transceivers" section of the Getting Started Guide.

This manual is also suitable for:

Superstack 3 3824Superstack 3 38483c174013c174003cr17402-91

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