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3Com 3C17203 Getting Started Guide - Page 67

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D TECHNICAL SUPPORT 3Com provides easy access to technical support information through a variety of services. This appendix describes these services. Information contained in this appendix is correct at time of publication. For the most recent information, 3Com recommends that you access the 3Com Corporation World Wide Web site. Online Technical Services 3Com offers worldwide product support 24 hours a day, 7 days a week, through the following online systems: ■ World Wide Web site ■ 3Com Knowledgebase Web Services ■ 3Com FTP site World Wide Web Site To access the latest networking information 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 technical information to help you install, upgrade, configure, or support 3Com products. The Knowledgebase is updated daily with technical information discovered by 3Com technical support engineers. This complimentary service, which is available 24 hours a day, 7 days a week to 3Com customers and partners, is located on the 3Com Corporation World Wide Web site at: http://knowledgebase.3com.com

Section	Page
Contents	3
About This Guide	7
Conventions	8
Related Documentation	9
Accessing Online Documentation	9
Product Registration	10
Documentation Comments	10
Introducing the SuperStack3 Switch 4400	11
About the Switch 4400	12
Summary of Hardware Features	12
Summary of Software Features	13
Switch 4400 — Front View Detail	14
10BASE-T/ 100BASE-TX Ports	15
LEDs	15
Switch 4400 — Rear View Detail	17
Power Socket	18
Redundant Power System Socket	18
Console Port	18
Expansion Module Slots	18
Default Settings	19
Installing the Switch	21
Package Contents	22
Choosing a Suitable Site	22
Rack-mounting	23
Placing Units On Top of Each Other	25
Stacking Units	25
The Power-up Sequence	26
Powering-up the Switch 4400	26
Checking for Correct Operation of LEDs	26
Connecting a Redundant Power System	27
Choosing the Correct Cables	27
Setting Up for Management	29
Setting Up Overview	30
IP Configuration	30
Manual IP Configuration	30
Automatic IP Configuration	31
Preparing for Management	32
Initial Switch Setup	32
Manual Setup	33
Connecting to a Front Panel Port	33
Pre-requisites	33
Connecting the Workstation to the Switch	33
Configuring the Workstation with IP Information	34
Setting Up the Switch with IP Information	34
Connecting to the Console Port	35
Pre-requisites	35
Connecting the Workstation to the Switch	35
Setting Up the Switch with IP Information	36
Automatic Setup	38
Using 3Com Network Supervisor	38
Connecting to the Console Port	38
Pre-requisites	38
Connecting the Workstation to the Switch	39
Viewing IP Information via the Console Port	40
Methods of Managing a Switch	41
Command Line Interface Management	41
Web Interface Management	42
SNMP Management	42
Setting Up Command Line Interface Management	43
CLI Management via the Console Port	43
CLI Management over the Network	43
Setting Up Web Interface Management	44
Pre-requisites	44
Choosing a Browser	44
Web Management Over the Network	44
Setting Up SNMP Management	45
Pre-requisites	45
Default Users and Passwords	46
Changing Default Passwords	46
Problem Solving	47
Solving Problems Indicated by LEDs	48
The Power LED does not light	48
On powering-up, the Power/Self Test LED lights yellow	48
A link is connected and yet the Status LED for the port does not light	48
The Unit LED is flashing green	49
Solving Hardware Problems	49
An expansion module is installed and the unit will not power up	49
An SNMP fan fail trap is received	49
Unit fails, no SNMP fan fail trap is received	49
Solving Communication Problems	50
IP Addressing	50
How do you obtain a registered IP Address?	51
Solving Software Upgrade Problems	51
Safety Information	53
Important Safety Information	54
L’information de Sécurité Importante	55
Wichtige Sicherheitsinformationen	57
Pin-outs	59
Null Modem Cable	59
PC-AT Serial Cable	59
Modem Cable	60
RJ-45 Pin Assignments	60
Technical Specifications	63
Switch 4400 (24-port)	63
Switch 4400 (48-port)	65
Technical Support	67
Online Technical Services	67
World Wide Web Site	67
3Com Knowledgebase Web Services	67
3Com FTP Site	68
Support from Your Network Supplier	68
Support from 3Com	68
Returning Products forRepair	70
Index	73