Zyxel ES-2024PWR User Manual [ru]

0 (0)

ES-2024 Series

Ethernet Switch

Default Login Details

IP Address	http://192.168.1.1
User Name	admin
Password	1234

Firmware Version 3.90

Edition 1, 12/2008

www.zyxel.com

ZyXEL Communications Corporation

About This User's Guide

Intended Audience

This manual is intended for people who want to configure the ES-2024 using the web configurator. You should have at least a basic knowledge of TCP/IP networking concepts and topology.

Customer Support

In the event of problems that cannot be solved by using this manual, you should contact your vendor. If you cannot contact your vendor, then contact a ZyXEL office for the region in which you bought the device. Regional offices are listed below (see also http:// www.zyxel.com/web/contact_us.php). Please have the following information ready when you contact an office.

Required Information

•Product model and serial number.

•Warranty Information.

•Date that you received your device.

•Brief description of the problem and the steps you took to solve it.

“+” is the (prefix) number you dial to make an international telephone call.

Corporate Headquarters (Worldwide)

•Support E-mail: support@zyxel.com.tw

•Sales E-mail: sales@zyxel.com.tw

•Telephone: +886-3-578-3942

•Fax: +886-3-578-2439

•Web: www.zyxel.com, www.europe.zyxel.com

•Regular Mail: ZyXEL Communications Corp., 6 Innovation Road II, Science Park, Hsinchu 300, Taiwan

China - ZyXEL Communications (Beijing) Corp.

•Support E-mail: cso.zycn@zyxel.cn

•Sales E-mail: sales@zyxel.cn

•Telephone: +86-010-82800646

•Fax: +86-010-82800587

•Address: 902, Unit B, Horizon Building, No.6, Zhichun Str, Haidian District, Beijing

•Web: http://www.zyxel.cn

China - ZyXEL Communications (Shanghai) Corp.

•Support E-mail: cso.zycn@zyxel.cn

•Sales E-mail: sales@zyxel.cn

•Telephone: +86-021-61199055

•Fax: +86-021-52069033

•Address: 1005F, ShengGao International Tower, No.137 XianXia Rd., Shanghai

•Web: http://www.zyxel.cn

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Customer SupportDocument Conventions

Document Conventions

Warnings and Notes

These are how warnings and notes are shown in this User’s Guide.

Warnings tell you about things that could harm you or your device.

Note: Notes tell you other important information (for example, other things you may need to configure or helpful tips) or recommendations.

Syntax Conventions

•The ES-2024A and ES-2024PWR may be referred to as the “ES-2024”, “Switch”, the “device”, the “system” or the “product” in this User’s Guide. Differentiation is made where needed.

•Product labels, screen names, field labels and field choices are all in bold font.

•A key stroke is denoted by square brackets and uppercase text, for example, [ENTER] means the “enter” or “return” key on your keyboard.

•“Enter” means for you to type one or more characters and then press the [ENTER] key. “Select” or “choose” means for you to use one of the predefined choices.

•Command keywords are in courier new font.

•A right angle bracket ( > ) within a screen name denotes a mouse click. For example,

Maintenance > Log > Log Setting means you first click Maintenance in the navigation panel, then the Log sub menu and finally the Log Setting tab to get to that screen.

•An arrow (-->) indicates that this line is a continuation of the previous line.

•Units of measurement may denote the “metric” value or the “scientific” value. For example, “k” for kilo may denote “1000” or “1024”, “M” for mega may denote “1000000” or “1048576” and so on.

•“e.g.,” is a shorthand for “for instance”, and “i.e.,” means “that is” or “in other words”.

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ES-2024 Series User’s Guide	5

Customer SupportDocument Conventions

Icons Used in Figures

Figures in this User’s Guide may use the following generic icons. The Switch icon is not an exact representation of your device.

Switch	Computer	Notebook computer

Server	DSLAM	Firewall

Telephone	Switch	Router

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Customer SupportSafety Warnings

Safety Warnings

•Do NOT use this product near water, for example, in a wet basement or near a swimming pool.

•Do NOT expose your device to dampness, dust or corrosive liquids.

•Do NOT store things on the device.

•Do NOT install, use, or service this device during a thunderstorm. There is a remote risk of electric shock from lightning.

•Connect ONLY suitable accessories to the device.

•Do NOT open the device or unit. Opening or removing covers can expose you to dangerous high voltage points or other risks. ONLY qualified service personnel should service or disassemble this device. Please contact your vendor for further information.

•ONLY qualified service personnel should service or disassemble this device.

•Make sure to connect the cables to the correct ports.

•Place connecting cables carefully so that no one will step on them or stumble over them.

•Always disconnect all cables from this device before servicing or disassembling.

•Use ONLY an appropriate power adaptor or cord for your device.

•Connect the power adaptor or cord to the right supply voltage (for example, 110V AC in North America or 230V AC in Europe).

•Do NOT allow anything to rest on the power adaptor or cord and do NOT place the product where anyone can walk on the power adaptor or cord.

•Do NOT use the device if the power adaptor or cord is damaged as it might cause electrocution.

•If the power adaptor or cord is damaged, remove it from the power outlet.

•Do NOT attempt to repair the power adaptor or cord. Contact your local vendor to order a new one.

•Do not use the device outside, and make sure all the connections are indoors. There is a remote risk of electric shock from lightning.

•CAUTION: RISK OF EXPLOSION IF BATTERY (on the motherboard) IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS. Dispose them at the applicable collection point for the recycling of electrical and electronic equipment. For detailed information about recycling of this product, please contact your local city office, your household waste disposal service or the store where you purchased the product.

•Do NOT obstruct the device ventilation slots, as insufficient airflow may harm your device.

•This product is recyclable. Dispose of it properly.

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ES-2024 Series User’s Guide	7

Customer SupportSafety Warnings

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Contents Overview

Introduction ............................................................................................................................	21
Getting to Know Your Switch .....................................................................................................	23
Hardware Installation and Connection .......................................................................................	29
Hardware Overview ...................................................................................................................	33
Basic Configuration ...............................................................................................................	39
The Web Configurator ...............................................................................................................	41
Initial Setup Example .................................................................................................................	53
Tutorials .....................................................................................................................................	59
System Status and Port Statistics ..............................................................................................	65
Basic Setting .............................................................................................................................	71
Advanced Setup .....................................................................................................................	89
VLAN .........................................................................................................................................	91
Static MAC Forwarding ............................................................................................................	105
Static Multicast Forwarding ......................................................................................................	109
Filtering .....................................................................................................................................	113
Spanning Tree Protocol ............................................................................................................	115
Bandwidth Control ...................................................................................................................	131
Broadcast Storm Control .........................................................................................................	133
Mirroring ..................................................................................................................................	135
Link Aggregation ......................................................................................................................	137
Port Authentication ..................................................................................................................	145
Port Security ............................................................................................................................	149
Queuing Method ......................................................................................................................	153
Multicast ..................................................................................................................................	157
AAA .........................................................................................................................................	173
IP Source Guard ......................................................................................................................	187
Loop Guard ..............................................................................................................................	201
IP Application .......................................................................................................................	205
Static Route .............................................................................................................................	207
Differentiated Services ..............................................................................................................	211
DHCP ......................................................................................................................................	215
Management .........................................................................................................................	223
Maintenance ............................................................................................................................	225
ES-2024 Series User’s Guide	9

Contents Overview

Access Control ........................................................................................................................	233
Diagnostic ................................................................................................................................	255
Syslog ......................................................................................................................................	257
Cluster Management ...............................................................................................................	261
MAC Table ...............................................................................................................................	269
ARP Table ................................................................................................................................	273
Configure Clone .......................................................................................................................	275
Appendices and Index .........................................................................................................	277

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Table of Contents

About This User's Guide ..........................................................................................................		3
• Customer Support4
Document Conventions............................................................................................................		5
Safety Warnings........................................................................................................................		7
Contents Overview ...................................................................................................................		9
Table of Contents....................................................................................................................		11
Part I: Introduction.................................................................................		21
Chapter 1
Getting to Know Your Switch.................................................................................................		23
1.1	Introduction ..........................................................................................................................	23
	1.1.1 Backbone Application .................................................................................................	23
	1.1.2 Bridging Example .......................................................................................................	24
	1.1.3 High Performance Switching Example .......................................................................	25
	1.1.4 IEEE 802.1Q VLAN Application Examples ................................................................	25
1.2	Ways to Manage the Switch ................................................................................................	26
1.3	Good Habits for Managing the Switch .................................................................................	26
Chapter 2
Hardware Installation and Connection .................................................................................		29
2.1	Freestanding Installation .....................................................................................................	29
2.2	Mounting the Switch on a Rack ...........................................................................................	30
	2.2.1 Rack-mounted Installation Requirements .................................................................	30
	2.2.2 Attaching the Mounting Brackets to the Switch ..........................................................	30
	2.2.3 Mounting the Switch on a Rack ..................................................................................	31
Chapter 3
Hardware Overview.................................................................................................................		33
3.1	Front Panel Connection .......................................................................................................	33
	3.1.1 Console Port ..............................................................................................................	34
	3.1.2 Ethernet Ports ............................................................................................................	34
	3.1.3 Mini-GBIC Slots ..........................................................................................................	35
3.2	Rear Panel ...........................................................................................................................	37
ES-2024 Series User’s Guide		11

Table of Contents

	3.2.1 Power Connector .......................................................................................................	37
3.3	LEDs ....................................................................................................................................	37
Part II: Basic Configuration...................................................................		39
Chapter 4
The Web Configurator ............................................................................................................		41
4.1	Introduction ..........................................................................................................................	41
4.2	System Login ....................................................................................................................	41
4.3	The Status Screen ..........................................................................................................	42
	4.3.1 Change Your Password ..........................................................................................	48
4.4	Saving Your Configuration ...................................................................................................	48
4.5	Switch Lockout ..................................................................................................................	48
4.6	Resetting the Switch .........................................................................................................	49
	4.6.1 Reload the Configuration File ....................................................................................	49
4.7	Logging Out of the Web Configurator .................................................................................	50
4.8	Help ....................................................................................................................................	51
Chapter 5
Initial Setup Example..............................................................................................................		53
5.1	Overview ..............................................................................................................................	53
	5.1.1 Creating a VLAN ........................................................................................................	53
	5.1.2 Setting Port VID .........................................................................................................	55
	5.1.3 Configuring Switch Management IP Address .............................................................	56
Chapter 6
Tutorials ...................................................................................................................................		59
6.1	How to Use DHCP Relay on the Switch ..............................................................................	59
	6.1.1 DHCP Relay Tutorial Introduction ..............................................................................	59
	6.1.2 Creating a VLAN ........................................................................................................	60
	6.1.3 Configuring DHCP Relay ...........................................................................................	62
	6.1.4 Troubleshooting .........................................................................................................	63
Chapter 7
System Status and Port Statistics.........................................................................................		65
7.1	Overview ..............................................................................................................................	65
7.2	Port Status Summary ......................................................................................................	65
	7.2.1 Status: Port Details ................................................................................................	67
Chapter 8
Basic Setting ..........................................................................................................................		71

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		Table of Contents
8.1	Overview ..............................................................................................................................	71
8.2	System Information ...........................................................................................................	72
8.3	General Setup .................................................................................................................	74
8.4	Introduction to VLANs .........................................................................................................	76
8.5	Switch Setup Screen ........................................................................................................	77
8.6	IP Setup ............................................................................................................................	78
	8.6.1 IP Interfaces ...............................................................................................................	79
8.7	Port Setup ...........................................................................................................................	81
8.8	PoE Status ..........................................................................................................................	83
	8.8.1 PoE Setup .................................................................................................................	85
Part III: Advanced Setup........................................................................		89
Chapter 9
VLAN ........................................................................................................................................		91
9.1	Introduction to IEEE 802.1Q Tagged VLANs ..................................................................	91
	9.1.1 Forwarding Tagged and Untagged Frames ................................................................	91
9.2	Automatic VLAN Registration .............................................................................................	92
	9.2.1 GARP .........................................................................................................................	92
	9.2.2 GVRP .........................................................................................................................	92
9.3	Port VLAN Trunking ............................................................................................................	93
9.4	Select the VLAN Type ........................................................................................................	94
9.5	Static VLAN .........................................................................................................................	94
	9.5.1 Static VLAN Status ....................................................................................................	95
	9.5.2 Static VLAN Details ...................................................................................................	96
	9.5.3 Configure a Static VLAN ........................................................................................	96
	9.5.4 Configure VLAN Port Settings ................................................................................	98
9.6	Port-based VLAN Setup .................................................................................................	99
	9.6.1 Configure a Port-based VLAN .................................................................................	101
Chapter 10
Static MAC Forwarding.........................................................................................................		105
10.1 Overview ..........................................................................................................................		105
10.2 Configuring Static MAC Forwarding ...........................................................................		105
Chapter 11
Static Multicast Forwarding .................................................................................................		109
11.1 Static Multicast Forwarding Overview ..............................................................................		109
11.2 Configuring Static Multicast Forwarding ............................................................................		110
Chapter 12
Filtering..................................................................................................................................		113

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Table of Contents

12.1 Configure a Filtering Rule ..............................................................................................

113

Chapter 13
Spanning Tree Protocol........................................................................................................			115
13.1		STP/RSTP Overview ......................................................................................................	115
	13.1.1 STP Terminology ....................................................................................................		115
	13.1.2 How STP Works .....................................................................................................		116
	13.1.3 STP Port States ......................................................................................................		117
	13.1.4 Multiple STP ............................................................................................................		117
13.2		Spanning Tree Configuration Screen ...............................................................................	120
13.3		Configure Rapid Spanning Tree Protocol .....................................................................	121
13.4		Rapid Spanning Tree Protocol Status ........................................................................	123
13.5		Configure Multiple Spanning Tree Protocol ..................................................................	125
13.6		Multiple Spanning Tree Protocol Status .....................................................................	128
Chapter 14
Bandwidth Control................................................................................................................			131
14.1		Bandwidth Control Setup ................................................................................................	131
Chapter 15
Broadcast Storm Control .....................................................................................................			133
15.1		Broadcast Storm Control Setup ......................................................................................	133
Chapter 16
Mirroring ................................................................................................................................			135
16.1		Port Mirroring Setup .......................................................................................................	135
Chapter 17
Link Aggregation ..................................................................................................................			137
17.1		Link Aggregation Overview .............................................................................................	137
17.2		Dynamic Link Aggregation ..............................................................................................	137
	17.2.1 Link Aggregation ID ...............................................................................................		138
17.3		Link Aggregation Status ..................................................................................................	139
17.4		Link Aggregation Setting ................................................................................................	140
17.5		Link Aggregation Control Protocol ................................................................................	141
17.6		Static Trunking Example ..................................................................................................	142
Chapter 18
Port Authentication...............................................................................................................			145
18.1		Port Authentication Overview .........................................................................................	145
	18.1.1 IEEE 802.1x Authentication ...................................................................................		145
18.2		Port Authentication Configuration ....................................................................................	146
	18.2.1 Activate IEEE 802.1x Security ...........................................................................		147

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		Table of Contents
Chapter 19
Port Security..........................................................................................................................		149
19.1	Port Security Overview ...................................................................................................	149
19.2	Port Security Setup ..........................................................................................................	150
19.3	Port Security Example .....................................................................................................	151
Chapter 20
Queuing Method....................................................................................................................		153
20.1	Queuing Method Overview .............................................................................................	153
20.1.1 Strictly Priority Queuing ..........................................................................................		153
20.1.2 Weighted Round Robin Scheduling (WRR) ...........................................................		153
20.2	Configuring Queuing ........................................................................................................	154
Chapter 21
Multicast ................................................................................................................................		157
21.1	Multicast Overview .........................................................................................................	157
21.1.1 IP Multicast Addresses ...........................................................................................		157
21.1.2 IGMP Filtering ........................................................................................................		157
21.1.3 IGMP Snooping .....................................................................................................		158
21.1.4 IGMP Snooping and VLANs ...................................................................................		158
21.2	Multicast Status ..............................................................................................................	158
21.3	Multicast Setting .............................................................................................................	159
21.4 IGMP Snooping VLAN ....................................................................................................		161
21.5	IGMP Filtering Profile .....................................................................................................	163
21.6 MVR Overview ................................................................................................................		164
21.6.1 Types of MVR Ports ...............................................................................................		165
21.6.2 MVR Modes ...........................................................................................................		165
21.6.3 How MVR Works ....................................................................................................		165
21.7	General MVR Configuration ............................................................................................	166
21.8	MVR Group Configuration ..............................................................................................	168
21.8.1 MVR Configuration Example ..................................................................................		170
Chapter 22
AAA ........................................................................................................................................		173
22.1	Authentication, Authorization and Accounting (AAA) .....................................................	173
22.1.1 Local User Accounts ..............................................................................................		174
22.1.2 RADIUS and TACACS+ ........................................................................................		174
22.2	AAA Screens ...................................................................................................................	174
22.2.1 RADIUS Server Setup ........................................................................................		175
22.2.2 TACACS+ Server Setup .....................................................................................		177
22.2.3 AAA Setup ..........................................................................................................		179
22.2.4 Vendor Specific Attribute ........................................................................................		182
22.3	Supported RADIUS Attributes .........................................................................................	183
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Table of Contents

22.3.1 Attributes Used for Authentication		.......................................................................... 184
22.3.2 Attributes Used for Accounting ...............................................................................		185
Chapter 23
IP Source Guard....................................................................................................................		187
23.1	IP Source Guard Overview ..............................................................................................	187
23.1.1 ARP Inspection Overview ......................................................................................		188
23.2	IP Source Guard ..............................................................................................................	189
23.3	IP Source Guard Static Binding .......................................................................................	190
23.4	ARP Inspection Status .....................................................................................................	192
23.4.1 ARP Inspection Log Status ....................................................................................		193
23.5	ARP Inspection Configure ...............................................................................................	194
23.5.1 ARP Inspection Port Configure ..............................................................................		197
23.5.2 ARP Inspection VLAN Configure ...........................................................................		198
Chapter 24
Loop Guard............................................................................................................................		201
24.1	Loop Guard Overview .....................................................................................................	201
24.2	Loop Guard Setup ...........................................................................................................	203
Part IV: IP Application..........................................................................		205
Chapter 25
Static Route ...........................................................................................................................		207
25.1	Static Routing Overview .................................................................................................	207
25.2	Configuring Static Routing .............................................................................................	208
Chapter 26
Differentiated Services .........................................................................................................		211
26.1	DiffServ Overview ............................................................................................................	211
26.1.1 DSCP and Per-Hop Behavior .................................................................................		211
26.1.2 DiffServ Network Example ....................................................................................		212
26.2	Activating DiffServ ..........................................................................................................	212
26.3	DSCP-to-IEEE 802.1p Priority Settings ......................................................................	214
26.3.1 Configuring DSCP Settings ....................................................................................		214
Chapter 27
DHCP......................................................................................................................................		215
27.1 DHCP Overview .............................................................................................................		215
27.1.1 DHCP Modes ........................................................................................................		215
27.1.2 DHCP Configuration Options .................................................................................		215

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		Table of Contents
27.2	DHCP Status ...................................................................................................................	216
27.3 DHCP Relay ...................................................................................................................		216
27.3.1 DHCP Relay Agent Information .............................................................................		216
27.3.2 Configuring DHCP Global Relay ............................................................................		217
27.3.3 Global DHCP Relay Configuration Example ..........................................................		218
27.4	Configuring DHCP VLAN Settings ................................................................................	219
27.4.1 Example: DHCP Relay for Two VLANs ..................................................................		220
Part V: Management.............................................................................		223
Chapter 28
Maintenance ..........................................................................................................................		225
28.1	The Maintenance Screen ...............................................................................................	225
28.2	Load Factory Default ......................................................................................................	226
28.3	Save Configuration ..........................................................................................................	226
28.4	Reboot System ................................................................................................................	227
28.5	Firmware Upgrade ........................................................................................................	227
28.6	Restore a Configuration File .........................................................................................	228
28.7	Backup a Configuration File .........................................................................................	228
28.8 FTP Command Line ........................................................................................................		229
28.8.1 Filename Conventions ..........................................................................................		229
28.8.2 FTP Command Line Procedure ............................................................................		230
28.8.3 GUI-based FTP Clients ..........................................................................................		231
28.8.4 FTP Restrictions ....................................................................................................		231
Chapter 29
Access Control......................................................................................................................		233
29.1	Access Control Overview ............................................................................................	233
29.2	The Access Control Main Screen ....................................................................................	233
29.3 About SNMP ..................................................................................................................		234
29.3.1 SNMP v3 and Security ...........................................................................................		235
29.3.2 Supported MIBs ...................................................................................................		235
29.3.3 SNMP Traps ..........................................................................................................		236
29.3.4 Configuring SNMP ..............................................................................................		240
29.3.5 Configuring SNMP Trap Group ...........................................................................		243
29.3.6 Setting Up Login Accounts .................................................................................		244
29.4	SSH Overview .................................................................................................................	245
29.5 How SSH works ...............................................................................................................		246
29.6	SSH Implementation on the Switch .................................................................................	247
29.6.1 Requirements for Using SSH .................................................................................		247
29.7	Introduction to HTTPS .....................................................................................................	247

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Table of Contents

29.8 HTTPS Example ..............................................................................................................		248
29.8.1 Internet Explorer Warning Messages .....................................................................		248
29.8.2 Netscape Navigator Warning Messages ................................................................		249
29.8.3 The Main Screen ....................................................................................................		251
29.9	Service Port Access Control .........................................................................................	251
29.10 Remote Management ...............................................................................................		252
Chapter 30
Diagnostic	..............................................................................................................................	255
30.1	Diagnostic .......................................................................................................................	255
Chapter 31
Syslog ....................................................................................................................................		257
31.1 ..............................................................................................................	Syslog Overview	257
31.2 ..................................................................................................................	Syslog Setup	258
31.3 .......................................................................................................	Syslog Server Setup	259
Chapter 32
Cluster Management.............................................................................................................		261
32.1 ......................................................................	Clustering Management Status Overview	261
32.2 ...........................................................................................	Cluster Management Status	262
32.2.1 ...................................................................Cluster Member Switch Management		263
32.3 ..........................................................................	Clustering Management Configuration	265
Chapter 33
MAC Table..............................................................................................................................		269
33.1 ......................................................................................................	MAC Table Overview	269
33.2 ...................................................................................................	Viewing the MAC Table	270
Chapter 34
ARP Table ..............................................................................................................................		273
34.1 .......................................................................................................	ARP Table Overview	273
34.1.1 ....................................................................................................How ARP Works		273
34.2 ...................................................................................................	Viewing the ARP Table	274
Chapter 35
Configure Clone ....................................................................................................................		275
35.1 ..............................................................................................................	Configure Clone	275
Part VI: Appendices ...........................................................and Index		277
Appendix A .......................................................................................Product Specifications		279

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		Table of Contents
Appendix	B IP Addresses and Subnetting	........................................................................... 289
Appendix	C Legal Information ..............................................................................................	299
Index.......................................................................................................................................		303

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Table of Contents

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20	ES-2024 Series User’s Guide

PART I

Introduction

Getting to Know Your Switch (23)

Hardware Installation and Connection (29)

Hardware Overview (33)

Getting to Know Your Switch

This chapter introduces the main features and applications of the Switch.

1.1 Introduction

The Switch is a stand-alone layer-2 Ethernet switch with 24 10/100Mbps ports and two Gigabit Ethernet/mini-GBIC ports. The ES-2024PWR comes with the Power- over-Ethernet (PoE) feature.

With its built-in web configurator, managing and configuring the Switch is easy. In addition, the Switch can also be managed via Telnet, SSH (Secure SHell), any terminal emulator program on the console port, or third-party SNMP management.

See Appendix A on page 279 for a full list of software features available on the Switch.

1.1.1 Backbone Application

The Switch is an ideal solution for small networks where rapid growth can be expected in the near future. The Switch can be used standalone for a group of heavy traffic users. You can connect computers and servers directly to the Switch’s port or connect other switches to the Switch.

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Chapter 1 Getting to Know Your Switch

In this example, all computers can share high-speed applications on the server. To expand the network, simply add more networking devices such as switches, routers, computers, print servers etc.

Figure 1 Backbone Application

1.1.2 Bridging Example

In this example application the Switch connects different company departments (RD and Sales) to the corporate backbone. It can alleviate bandwidth contention and eliminate server and network bottlenecks. All users that need high bandwidth can connect to high-speed department servers via the Switch. You can provide a super-fast uplink connection by using a Gigabit Ethernet/mini-GBIC port on the Switch.

Moreover, the Switch eases supervision and maintenance by allowing network managers to centralize multiple servers at a single location.

Figure 2 Bridging Application

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Chapter 1 Getting to Know Your Switch

1.1.3 High Performance Switching Example

The Switch is ideal for connecting two networks that need high bandwidth. In the following example, use trunking to connect these two networks.

Switching to higher-speed LANs such as ATM (Asynchronous Transmission Mode) is not feasible for most people due to the expense of replacing all existing Ethernet cables and adapter cards, restructuring your network and complex maintenance. The Switch can provide the same bandwidth as ATM at much lower cost while still being able to use existing adapters and switches. Moreover, the current LAN structure can be retained as all ports can freely communicate with each other.

Figure 3 High Performance Switched Workgroup Application

1.1.4 IEEE 802.1Q VLAN Application Examples

A VLAN (Virtual Local Area Network) allows a physical network to be partitioned into multiple logical networks. Stations on a logical network belong to one group. A station can belong to more than one group. With VLAN, a station cannot directly talk to or hear from stations that are not in the same group(s) unless such traffic first goes through a router.

For more information on VLANs, refer to Chapter 9 on page 91.

Ports in the same VLAN group share the same frame broadcast domain thus increase network performance through reduced broadcast traffic. VLAN groups can be modified at any time by adding, moving or changing ports without any recabling.

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Chapter 1 Getting to Know Your Switch

Shared resources such as a server can be used by all ports in the same VLAN as the server. In the following figure only ports that need access to the server need to be part of VLAN 1. Ports can belong to other VLAN groups too.

Figure 4 Shared Server Using VLAN Example

1.2 Ways to Manage the Switch

Use any of the following methods to manage the Switch.

•Web Configurator. This is recommended for everyday management of the Switch using a (supported) web browser. See Chapter 4 on page 41.

•Command Line Interface. Line commands offer an alternative to the Web Configurator and may be necessary to configure advanced features. See the CLI Reference Guide.

•FTP. Use File Transfer Protocol for firmware upgrades and configuration backup/ restore. See Section 28.8 on page 229.

•SNMP. The device can be monitored and/or managed by an SNMP manager. See Section 29.3 on page 234.

1.3Good Habits for Managing the Switch

Do the following things regularly to make the Switch more secure and to manage the Switch more effectively.

•Change the password. Use a password that’s not easy to guess and that consists of different types of characters, such as numbers and letters.

•Write down the password and put it in a safe place.

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•Back up the configuration (and make sure you know how to restore it). Restoring an earlier working configuration may be useful if the device becomes unstable or even crashes. If you forget your password, you will have to reset the Switch to its factory default settings. If you backed up an earlier configuration file, you would not have to totally re-configure the Switch. You could simply restore your last configuration.

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Hardware Installation and

Connection

This chapter shows you how to install and connect the Switch.

2.1 Freestanding Installation

1Make sure the Switch is clean and dry.

2Set the Switch on a smooth, level surface strong enough to support the weight of the Switch and the connected cables. Make sure there is a power outlet nearby.

3Make sure there is enough clearance around the Switch to allow air circulation and the attachment of cables and the power cord.

4Remove the adhesive backing from the rubber feet.

5Attach the rubber feet to each corner on the bottom of the Switch. These rubber feet help protect the Switch from shock or vibration and ensure space between devices when stacking.

Figure 5 Attaching Rubber Feet

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Note: Do NOT block the ventilation holes. Leave space between devices when stacking.

For proper ventilation, allow at least 4 inches (10 cm) of clearance at the front and 3.4 inches (8 cm) at the back of the Switch. This is especially important for enclosed rack installations.

2.2 Mounting the Switch on a Rack

This section lists the rack mounting requirements and precautions and describes the installation steps.

2.2.1Rack-mounted Installation Requirements

•Two mounting brackets.

•Eight M3 flat head screws and a #2 Philips screwdriver.

•Four M5 flat head screws and a #2 Philips screwdriver.

Note: Failure to use the proper screws may damage the unit.

2.2.1.1Precautions

•Make sure the rack will safely support the combined weight of all the equipment it contains.

•Make sure the position of the Switch does not make the rack unstable or topheavy. Take all necessary precautions to anchor the rack securely before installing the unit.

2.2.2Attaching the Mounting Brackets to the Switch

1Position a mounting bracket on one side of the Switch, lining up the four screw holes on the bracket with the screw holes on the side of the Switch.

Figure 6 Attaching the Mounting Brackets

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