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Baseline Switch 2250 Plus
User Guide
Installationsanleitung
3C16476CS
http://www.3com.com/
Part No. 10015237 Rev. AA
Published August 2006
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3Com Corporation • 350 Campus Drive � Marlborough � MA USA 01752-3064 Copyright © 2006, 3Com Corporation. All rights reserved. No part of this Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks documentation may be reproduced in any form or by any means or used to of Microsoft Corporation. make any derivative work (such as translation, transformation, or IEEE and 802 are registered trademarks of the Institute of Electrical and adaptation) without written permission from 3Com
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CONTENTS Supplying Power to the Switch 16 ABOUT THIS GUIDE Checking for Correct Operation 16 Conventions 5 Connecting a Network Device 17 Related Documentation 6 Using SFP Transceivers 18 Documentation Comments 6 Approved SFP Transceivers 18 Inserting an SFP Transceiver 18 Removing an SFP Transceiver 19 1 INTRODUCING THE BASELINE SWITCH Performing Spot Checks 19 Overview of the Baseline Switch 2250 Plus 7 Features and Capabilities 7 3 CONNECTING TO THE WEB INTERFACE Autosensing of MDI/MDIX Conne
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Backup Configuration 30 Forgotten Static IP Address 60 Restore Configuration 30 Solving LED Issues 60 Firmware Upgrade 31 If the Problem Persists 61 Initialize 31 Reboot 32 A OBTAINING SUPPORT FOR YOUR PRODUCT System Access 32 Register Your Product 63 System Time 34 Purchase Value-Added Services 63 SNMP 34 Troubleshoot Online 63 Configuring VLANs 35 Access Software Downloads 63 VLAN 36 Telephone Technical Support and Repair 64 Forwarding Tagged/Untagged Frames 39 Contact Us 64 Sample VLAN Config
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ABOUT THIS GUIDE This guide describes how to install your Switch and Table 1 Notice Icons perform initial management configurations. Icon Notice Type Description This guide is intended for use by network administa- Information Information that describes important features note or instructions tors who are responsible for installing and setting up network equipment. Consequently, it assumes a basic Caution Information that alerts you to potential loss of working knowledge of LANs (local ar
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6 ABOUT THIS GUIDE Please note that we can only respond to comments Related Documentation and questions about 3Com product documentation In addition to this guide, each 3Com Baseline Switch at this e-mail address. Questions related to technical 2250 Plus documentation set includes the following: support or sales should be directed in the first instance to your network supplier. ■ Online Help – Accessible from the Web interface, provides information that helps you perform tasks using the We
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INTRODUCING THE BASELINE SWITCH 1 This chapter provides an overview of the features and While there are four physical Gigabit ports, only a ® capabilities of the 3Com Baseline Switch 2250 Plus. maximum of two can be operational at any given It also identifies the contents of the Switch package time. and helps you get to know the physical features of the device. Autosensing of MDI/MDIX Connections All ports on the Switch can autosense both medium dependent interface (MDI) and medium dependent
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8 CHAPTER 1: INTRODUCING THE BASELINE SWITCH SFP Ports type of traffic. The priority levels and their traffic types are shown in the following table. The two SFP ports support fiber Gigabit Ethernet short-wave (SX) and long-wave (LX) SFP transceivers Table 3 Priority Levels for Traffic Types in any combination. This offers you the flexibility of Priority Level Traffic Type using SFP transceivers to provide connectivity 0 Best effort between the Switch and a 1000 Mbps core network. 1Backgr
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Physical Features 9 available communication paths between switches and to a traditional PBX or public telephone network. to determine the best available path and block less Only connect RJ-45 data connectors, network optimal paths. telephony systems, or network telephones to these sockets. For information on configuring BPDU forwarding and Either shielded or unshielded data cables with blocking, refer to “Spanning Tree” on page 41. shielded or unshielded jacks can be connected to these dat
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10 CHAPTER 1: INTRODUCING THE BASELINE SWITCH (half-duplex or full-duplex) are automatically The two SFP ports support fiber Gigabit Ethernet determined by the capabilities of the connected short-wave (SX) and long-wave (LX) SFP transceivers device. in any combination. This offers you the flexibility of using SFP transceivers to provide connectivity Each port also supports automatic MDI/MDI-X between the Switch and remote 1000 Mbps detection and can be connected to either a 10BASE-T, work
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Physical Features 11 Status Meaning Status Meaning Flashing Yellow Packets are being received or Flashing Yellow to Port disabled or link loopback error transmitted on the port at 10 Mbps Green Off Link not established, either nothing is Off Link not established, either nothing is connected to the port, or there is a connected to the port, or there is a problem. problem. ■ Verify that the attached device is ■ Verify that the attached device is powered on powered on ■ Verify that the cable or
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12 CHAPTER 1: INTRODUCING THE BASELINE SWITCH (5) Power LED Rear Panel The Power LED shows the power status of the Switch. (7) Power Supply Table 7 Power LED The Switch automatically adjusts to the supply volt- Status Meaning age. Only use the power cord that is supplied with Green The unit is powered on and ready for use the unit. Flashing Power-on self-test is in progress Green (8) Recovery Button Yellow Power-on self-test or loopback test failed. If this Use the Recovery button on the rea
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INSTALLING THE SWITCH 2 This chapter contains information that you need to iten verrichten, lesen Sie die Sicherheitsanweisungen, install and set up the Switch. It covers the following die in Appendix B (Anhang B) in diesem Handbuch topics: aufgefuehrt sind. ■ Positioning the Switch Positioning the Switch ■ Rack-Mounting or Free-Standing The Switch is suitable for use in an office environment ■ Supplying Power to the Switch where it can be free-standing or mounted in a stan- ■ Connecting a Ne
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14 CHAPTER 2: INSTALLING THE SWITCH recommends that you provide a minimum of 25 3Com empfiehlt das Sie 25mm (1 Inch) mm or 1 in. clearance). Zwischenraum sicherstellen. ■ The air is as free of dust as possible. ■ Die Luft so frei wie möglich von Staub ist. ■ Temperature operating limits are not likely to be ■ Es unwahrscheinlich ist das die Betriebstemperatur exceeded. It is recommended that the unit is überschritten wird. 3Com empfiehlt das Sie den installed in a clean, air conditioned envir
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Baseline Switch 2816-SFP Plus Rack-Mounting or Free-Standing 15 To rack-mount the Switch: Montagesatz Anweisungen Der Switch wird mit zwei Halterungen und vier 1 Place the unit the right way up on a hard, flat surface Schrauben geliefert. Diese werde für den Einbau in with the front facing towards you. einen Baugruppenträger benutzt. Bei der Montage 2 Locate a mounting bracket over the mounting holes der Baugruppe beachten Sie die Anweisungen aus on one side of the unit. “Aufstellen des Sw
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16 CHAPTER 2: INSTALLING THE SWITCH Placing Units On Top of Each Other power is by connecting or disconnecting the power cord. If the Switch units are free-standing, up to four units can be placed one on top of the other. If you are To power on the Switch: mixing a variety of Baseline and SuperStack units, the 1 Plug the power cord into the power socket on the smaller units must be positioned at the top. rear panel of the Switch. Refer to “(7) Power Supply” If you are placing Switch units
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Connecting a Network Device 17 Color State Connecting a Network Device Yellow Power-on self-test or loopback test failed. To connect a network device to the Switch, use Cate- This can happen if a ports or ports fail gory 5 unshielded or shielded (screened) 100 Ohm TP when the Switch was powered on. cables (or Category 3 cables for 10 Mbps connec- Off The unit is not receiving power: tions). ■ Verify that the power cord is connected correctly, and then try powering on the For optimal connec
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18 CHAPTER 2: INSTALLING THE SWITCH fiber-optic cable or to multimode fiber using a Using SFP Transceivers conditioned launch cable. The following sections describe how to insert and If the SFP transceiver is faulty, it will not operate remove an SFP transceiver from an SFP slot. within the Switch. See “Troubleshooting” on SFP transceivers are hot-insertable and hot-swappa- page 59. ble. You can remove them from and insert them into To insert an SFP transceiver: any SFP port without having
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Performing Spot Checks 19 CAUTION: SFP transceivers are keyed and can be Performing Spot Checks properly inserted only one way. If the transceiver does not click when you insert it, remove it, turn it over, At frequent intervals, you should visually check the and then re-insert it. Switch. Regular checks can give you an early warning of a possible failure; any problems can then be 3 Remove the plastic protective cover, if fitted. attended to when there will be least effect on users. 4 Conne
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20 CHAPTER 2: INSTALLING THE SWITCH
