ZyXEL Communications ES-2048 User manual

ES-2048
Intelligent Layer 2 Switch
48-port Fast Ethernet +
2 GbE Dual Personality Interfaces (Copper/SFP)
User’s Guide
Version 3.70
8/2006
Edition 1

ES-2048 User’s Guide
Copyright 1
Copyright
Copyright © 2006 by ZyXEL Communications Corporation.
The contents of this publication may not be reproduced in any part or as a whole, transcribed,
stored in a retrieval system, translated into any language, or transmitted in any form or by any
means, electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or
otherwise, without the prior written permission of ZyXEL Communications Corporation.
Published by ZyXEL Communications Corporation. All rights reserved.
Disclaimer
ZyXEL does not assume any liability arising out of the application or use of any products, or
software described herein. Neither does it convey any license under its patent rights nor the
patent rights of others. ZyXEL further reserves the right to make changes in any products
described herein without notice. This publication is subject to change without notice.
Trademarks
ZyNOS (ZyXEL Network Operating System) is a registered trademark of ZyXEL
Communications, Inc. Other trademarks mentioned in this publication are used for
identification purposes only and may be properties of their respective owners.

ES-2048 User’s Guide
2Certifications
Certifications
Federal Communications Commission (FCC) Interference Statement
This device complies with Part 15 of FCC rules. Operation is subject to the following two
conditions:
• This device may not cause harmful interference.
• This device must accept any interference received, including interference that may cause
undesired operations.
FCC Warning
This device has been tested and found to comply with the limits for a Class A digital switch,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a commercial environment. This device generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio communications. Operation of
this device in a residential area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.
CE Mark 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.
Taiwanese BSMI (Bureau of Standards, Metrology and Inspection) A
Warning:
Notices
Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
Viewing Certifications
1Go to http://www.zyxel.com.

ES-2048 User’s Guide
Certifications 3
2Select your product from the drop-down list box on the ZyXEL home page to go to that
product's page.
3Select the certification you wish to view from this page.

ES-2048 User’s Guide
4Safety Warnings
Safety Warnings
For your safety, be sure to read and follow all warning notices and instructions.
• 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.
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.
• The length of exposed (bare) power wire should not exceed 7mm.

ES-2048 User’s Guide
Safety Warnings 5
This product is recyclable. Dispose of it properly.

ES-2048 User’s Guide
6ZyXEL Limited Warranty
ZyXEL Limited Warranty
ZyXEL warrants to the original end user (purchaser) that this product is free from any defects
in materials or workmanship for a period of up to two years from the date of purchase. During
the warranty period, and upon proof of purchase, should the product have indications of failure
due to faulty workmanship and/or materials, ZyXEL will, at its discretion, repair or replace the
defective products or components without charge for either parts or labor, and to whatever
extent it shall deem necessary to restore the product or components to proper operating
condition. Any replacement will consist of a new or re-manufactured functionally equivalent
product of equal or higher value, and will be solely at the discretion of ZyXEL. This warranty
shall not apply if the product has been modified, misused, tampered with, damaged by an act
of God, or subjected to abnormal working conditions.
Note
Repair or replacement, as provided under this warranty, is the exclusive remedy of the
purchaser. This warranty is in lieu of all other warranties, express or implied, including any
implied warranty of merchantability or fitness for a particular use or purpose. ZyXEL shall in
no event be held liable for indirect or consequential damages of any kind to the purchaser.
To obtain the services of this warranty, contact ZyXEL's Service Center for your Return
Material Authorization number (RMA). Products must be returned Postage Prepaid. It is
recommended that the unit be insured when shipped. Any returned products without proof of
purchase or those with an out-dated warranty will be repaired or replaced (at the discretion of
ZyXEL) and the customer will be billed for parts and labor. All repaired or replaced products
will be shipped by ZyXEL to the corresponding return address, Postage Paid. This warranty
gives you specific legal rights, and you may also have other rights that vary from country to
country.
Registration
Register your product online to receive e-mail notices of firmware upgrades and information
at www.zyxel.com for global products, or at www.us.zyxel.com for North American products.

ES-2048 User’s Guide
Customer Support 7
Customer Support
Please have the following information ready when you contact customer support.
• 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.
METHOD
LOCATION
SUPPORT E-MAIL TELEPHONE WEB SITE
REGULAR MAIL
SALES E-MAIL FAX FTP SITE
CORPORATE
HEADQUARTERS
(WORLDWIDE)
[email protected] [phone] www.zyxel.com
www.europe.zyxel.com
ZyXEL Communications Corp.
6 Innovation Road II
Science Park
Hsinchu 300
Ta i w a n
[email protected] [phone] ftp.zyxel.com
ftp.europe.zyxel.com
COSTA RICA
[email protected] [phone] www.zyxel.co.cr ZyXEL Costa Rica
Plaza Roble Escazú
Etapa El Patio, Tercer Piso
San José, Costa Rica
[email protected] [phone] ftp.zyxel.co.cr
CZECH REPUBLIC
[email protected] [phone] www.zyxel.cz ZyXEL Communications
Czech s.r.o.
Modranská 621
143 01 Praha 4 - Modrany
Ceská Republika
[email protected] [phone]
DENMARK
[email protected] [phone] www.zyxel.dk ZyXEL Communications A/S
Columbusvej
2860 Soeborg
Denmark
[email protected] [phone]
FINLAND
[email protected] [phone] www.zyxel.fi ZyXEL Communications Oy
Malminkaari 10
00700 Helsinki
Finland
[email protected] [phone]
FRANCE
[email protected] [phone] www.zyxel.fr ZyXEL France
1 rue des Vergers
Bat. 1 / C
69760 Limonest
France
[phone]
GERMANY
[email protected] [phone] www.zyxel.de ZyXEL Deutschland GmbH.
Adenauerstr. 20/A2 D-52146
Wuerselen
Germany
[email protected] [phone]
HUNGARY
[email protected] [phone] www.zyxel.hu ZyXEL Hungary
48, Zoldlomb Str.
H-1025, Budapest
Hungary
[email protected] [phone]
KAZAKHSTAN
http://zyxel.kz/support [phone] www.zyxel.kz ZyXEL Kazakhstan
43, Dostyk ave.,Office 414
Dostyk Business Centre
050010, Almaty
Republic of Kazakhstan
[email protected] [phone]
NORTH AMERICA
[email protected] 1-800-255-4101
[phone]
www.us.zyxel.com ZyXEL Communications Inc.
1130 N. Miller St.
Anaheim
CA 92806-2001
U.S.A.
[email protected] [phone] ftp.us.zyxel.com

ES-2048 User’s Guide
8Customer Support
+” is the (prefix) number you enter to make an international telephone call.
NORWAY
[email protected] [phone] www.zyxel.no ZyXEL Communications A/S
Nils Hansens vei 13
0667 Oslo
Norway
[email protected] [phone]
POLAND
[email protected] [phone] www.pl.zyxel.com ZyXEL Communications
ul. Okrzei 1A
03-715 Warszawa
Poland
[phone]
RUSSIA
http://zyxel.ru/support [phone] www.zyxel.ru ZyXEL Russia
Ostrovityanova 37a Str.
Moscow, 117279
Russia
[email protected] [phone]
SPAIN
[email protected] [phone] www.zyxel.es ZyXEL Communications
Arte, 21 5ª planta
28033 Madrid
Spain
[email protected] [phone]
SWEDEN
[email protected] [phone] www.zyxel.se ZyXEL Communications A/S
Sjöporten 4, 41764 Göteborg
Sweden
[email protected] [phone]
UKRAINE
[email protected] [phone] www.ua.zyxel.com ZyXEL Ukraine
13, Pimonenko Str.
Kiev, 04050
Ukraine
[email protected] [phone]
UNITED KINGDOM
[email protected] [phone]
08707 555779 (UK only)
www.zyxel.co.uk ZyXEL Communications UK
Ltd.,11 The Courtyard,
Eastern Road, Bracknell,
Berkshire, RG12 2XB,
United Kingdom (UK)
[email protected] [phone] ftp.zyxel.co.uk
METHOD
LOCATION
SUPPORT E-MAIL TELEPHONE WEB SITE
REGULAR MAIL
SALES E-MAIL FAX FTP SITE

ES-2048 User’s Guide
Table of Contents 9
Table of Contents
Copyright .................................................................................................................. 1
Certifications ............................................................................................................ 2
Safety Warnings ....................................................................................................... 4
ZyXEL Limited Warranty.......................................................................................... 6
Customer Support.................................................................................................... 7
Table of Contents ..................................................................................................... 9
List of Figures ........................................................................................................ 19
List of Tables .......................................................................................................... 23
Preface .................................................................................................................... 27
Chapter 1
Getting to Know Your Switch................................................................................ 29
1.1 Introduction ........................................................................................................29
1.2 Software Features ..............................................................................................29
1.3 Hardware Features ............................................................................................32
1.4 Applications ........................................................................................................33
1.4.1 Backbone Application ...............................................................................33
1.4.2 Bridging Example ......................................................................................34
1.4.3 High Performance Switched Example ......................................................34
1.4.4 IEEE 802.1Q VLAN Application Examples ...............................................35
1.4.4.1 Tag-based VLAN Example ..............................................................35
1.4.4.2 VLAN Shared Server Example ........................................................36
Chapter 2
Hardware Installation and Connection................................................................. 37
2.1 Freestanding Installation ...................................................................................37
2.2 Mounting the Switch on a Rack .........................................................................38
2.2.1 Rack-mounted Installation Requirements .................................................38
2.2.1.1 Precautions ....................................................................................38
2.2.2 Attaching the Mounting Brackets to the Switch ........................................38
2.2.3 Mounting the Switch on a Rack ................................................................38

ES-2048 User’s Guide
10 Table of Contents
Chapter 3
Hardware Overview................................................................................................ 41
3.1 Panel Connections ............................................................................................41
3.1.1 Console Port ............................................................................................42
3.1.2 Ethernet Ports ...........................................................................................42
3.1.2.1 Default Ethernet Settings ................................................................42
3.1.3 Mini-GBIC Slots .......................................................................................43
3.1.3.1 Transceiver Installation ................................................................43
3.1.3.2 Transceiver Removal ...................................................................44
3.1.4 Power Connector ......................................................................................44
3.2 LEDs ..............................................................................................................45
Chapter 4
The Web Configurator............................................................................................ 47
4.1 Introduction ........................................................................................................47
4.2 System Login ..................................................................................................47
4.3 The Status Screen .........................................................................................48
4.4 Menu Overview ..................................................................................................49
4.4.1 Change Your Password .........................................................................52
4.5 Saving Your Configuration ..................................................................................52
4.6 Switch Lockout .................................................................................................53
4.7 Resetting the Switch .......................................................................................53
4.7.1 Reload the Configuration File .................................................................53
4.7.2 Reset to the Factory Defaults ...................................................................55
4.8 Logging Out of the Web Configurator ...............................................................56
4.9 Help ..................................................................................................................56
Chapter 5
Initial Setup Example ............................................................................................. 57
5.1 Overview ............................................................................................................57
5.1.1 Creating a VLAN .......................................................................................57
5.1.2 Setting Port VID ........................................................................................58
5.2 Configuring Switch Management IP Address .....................................................59
Chapter 6
System Status and Port Statistics ........................................................................ 61
6.1 Overview ............................................................................................................61
6.2 Port Status Summary .....................................................................................61
6.2.1 Status: Port Details ...............................................................................63
Chapter 7
Basic Setting ......................................................................................................... 67
7.1 Overview ............................................................................................................67

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Table of Contents 11
7.2 System Information ........................................................................................67
7.3 General Setup ...............................................................................................69
7.4 Introduction to VLANs ......................................................................................71
7.5 Switch Setup Screen .......................................................................................72
7.6 IP Setup ..........................................................................................................74
7.6.1 Management IP Addresses ......................................................................74
7.7 Port Setup .......................................................................................................77
Chapter 8
VLAN ....................................................................................................................... 81
8.1 Introduction to IEEE 802.1Q Tagged VLAN ..................................................81
8.1.1 Forwarding Tagged and Untagged Frames ..............................................81
8.2 Automatic VLAN Registration ...........................................................................82
8.2.1 GARP ........................................................................................................82
8.2.1.1 GARP Timers .................................................................................82
8.2.2 GVRP ........................................................................................................82
8.3 Port VLAN Trunking .........................................................................................83
8.4 Select the VLAN Type .......................................................................................83
8.5 Static VLAN ........................................................................................................84
8.5.1 Static VLAN Status ....................................................................................84
8.5.2 Static VLAN Details ...................................................................................85
8.5.3 Configure a Static VLAN ........................................................................86
8.5.4 Configure VLAN Port Settings ...............................................................88
8.6 Protocol Based VLANs ......................................................................................90
8.7 Configuring Protocol Based VLAN ...................................................................91
8.8 Create an IP-based VLAN Example ...................................................................93
8.9 Port Based VLAN Setup ................................................................................94
8.9.1 Configure a Port Based VLAN ..................................................................94
Chapter 9
Static MAC Forwarding.......................................................................................... 99
9.1 Overview ............................................................................................................99
9.2 Configuring Static MAC Forwarding ..............................................................99
Chapter 10
Filtering ................................................................................................................. 103
10.1 Configure a Filtering Rule ...........................................................................103
Chapter 11
Spanning Tree Protocol ....................................................................................... 105
11.1 STP/RSTP Overview ....................................................................................105
11.1.1 STP Terminology ..................................................................................105
11.1.2 How STP Works ...................................................................................106

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12 Table of Contents
11.1.3 STP Port States ...................................................................................106
11.2 Rapid Spanning Tree Protocol Status .......................................................107
11.3 Configure Rapid Spanning Tree Protocol ....................................................108
Chapter 12
Bandwidth Control ............................................................................................... 113
12.1 Bandwidth Control Overview .......................................................................... 113
12.1.1 CIR and PIR .......................................................................................... 113
12.2 Bandwidth Control Setup ...............................................................................113
Chapter 13
Broadcast Storm Control..................................................................................... 117
13.1 Broadcast Storm Control Overview ............................................................... 117
13.2 Broadcast Storm Control Setup ......................................................................117
Chapter 14
Mirroring ............................................................................................................... 121
14.1 Port Mirroring Setup ......................................................................................121
Chapter 15
Link Aggregation.................................................................................................. 125
15.1 Link Aggregation Overview ...........................................................................125
15.2 Dynamic Link Aggregation ...........................................................................125
15.2.1 Link Aggregation ID .............................................................................126
15.3 Link Aggregation Control Protocol Status .....................................................126
15.4 Link Aggregation Setup ................................................................................127
Chapter 16
Port Authentication.............................................................................................. 131
16.1 Port Authentication Overview ........................................................................131
16.1.1 RADIUS ...............................................................................................131
16.1.1.1 Vendor Specific Attribute .............................................................131
16.1.1.2 Tunnel Protocol Attribute .............................................................132
16.2 Port Authentication Configuration ..................................................................132
16.2.1 Configuring RADIUS Server Settings ................................................133
16.2.2 Activate IEEE 802.1x Security ...........................................................134
Chapter 17
Port Security......................................................................................................... 137
17.1 Port Security Setup .......................................................................................137
17.2 Port Security Setup ........................................................................................137

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Table of Contents 13
Chapter 18
Queuing Method................................................................................................... 141
18.1 Queuing Method Overview .............................................................................141
18.1.1 Strictly Priority .......................................................................................141
18.1.2 Weighted Fair Queuing .........................................................................141
18.1.3 Weighted Round Robin Scheduling (WRR) ..........................................142
18.2 Configuring Queuing ......................................................................................142
Chapter 19
Multicast................................................................................................................ 145
19.1 Multicast Overview ........................................................................................145
19.1.1 IP Multicast Addresses .........................................................................145
19.1.2 IGMP Filtering .......................................................................................145
19.1.3 IGMP Snooping ...................................................................................145
19.2 Multicast Status .............................................................................................146
19.3 Multicast Settings ..........................................................................................146
19.4 IGMP Filtering Profile ....................................................................................149
19.5 MVR Overview ..............................................................................................151
19.5.1 Types of MVR Ports ..............................................................................151
19.5.2 MVR Modes ..........................................................................................151
19.5.3 How MVR Works ..................................................................................152
19.6 General MVR Configuration ...........................................................................152
19.7 MVR Group Configuration .............................................................................155
19.7.1 MVR Configuration Example ................................................................156
Chapter 20
DHCP Relay .......................................................................................................... 159
20.1 DHCP Relay Overview ...................................................................................159
20.1.1 DHCP Relay Agent Information ............................................................159
20.2 DHCP Relay Configuration ...........................................................................159
Chapter 21
Static Route .......................................................................................................... 161
21.1 Configure Static Routing ...............................................................................161
Chapter 22
DiffServ Code Point ............................................................................................. 163
22.1 DiffServ Overview .........................................................................................163
22.1.1 DSCP and Per-Hop Behavior ..............................................................163
22.1.2 DiffServ Network Example ...................................................................163
22.2 Activating DiffServ .........................................................................................164
22.3 DSCP-to-IEEE802.1p Priority Mapping Settings .......................................166
22.3.1 Configuring DSCP Settings ..................................................................166

ES-2048 User’s Guide
14 Table of Contents
Chapter 23
Maintenance ......................................................................................................... 169
23.1 The Maintenance Screen .............................................................................169
23.2 Load Factory Default .....................................................................................170
23.3 Save Configuration .........................................................................................170
23.4 Reboot System ...............................................................................................171
23.5 Firmware Upgrade ......................................................................................171
23.6 Restore a Configuration File .......................................................................172
23.7 Backup a Configuration File ........................................................................172
23.8 FTP Command Line .......................................................................................173
23.8.1 Filename Conventions .........................................................................173
23.8.1.1 Example FTP Commands ...........................................................174
23.8.2 FTP Command Line Procedure ...........................................................174
23.8.3 GUI-based FTP Clients .........................................................................175
23.8.4 FTP Restrictions ..................................................................................175
Chapter 24
Access Control..................................................................................................... 177
24.1 Access Control Overview ...........................................................................177
24.2 The Access Control Main Screen ...................................................................177
24.3 About SNMP ................................................................................................178
24.3.1 Supported MIBs ..................................................................................179
24.3.2 SNMP Traps .......................................................................................179
24.3.3 Configuring SNMP ...............................................................................180
24.4 Setting Up Login Accounts .........................................................................180
24.5 SSH Overview ................................................................................................182
24.6 How SSH works .............................................................................................182
24.7 SSH Implementation on the Switch ................................................................183
24.7.1 Requirements for Using SSH ................................................................184
24.8 Introduction to HTTPS ....................................................................................184
24.9 HTTPS Example ............................................................................................185
24.9.1 Internet Explorer Warning Messages ...................................................185
24.9.2 Netscape Navigator Warning Messages ...............................................185
24.9.3 The Main Screen ..................................................................................186
24.10 Service Port Access Control .....................................................................187
24.11 Remote Management ..............................................................................188
Chapter 25
Diagnostic............................................................................................................. 191
25.1 Diagnostic .....................................................................................................191

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Table of Contents 15
Chapter 26
Syslog ................................................................................................................... 193
26.1 Overview ........................................................................................................193
26.2 Syslog Setup .................................................................................................193
26.3 Syslog Server Setup .....................................................................................194
Chapter 27
Cluster Management............................................................................................ 197
27.1 Clustering Management Status Overview .....................................................197
27.2 Clustering Management Status .....................................................................198
27.2.1 Cluster Member Switch Management ..................................................199
27.2.1.1 Uploading Firmware to a Cluster Member Switch .....................200
27.3 Clustering Management Configuration .........................................................201
Chapter 28
MAC Table ............................................................................................................. 205
28.1 MAC Table Overview .....................................................................................205
28.2 Viewing the MAC Table .................................................................................206
Chapter 29
ARP Table.............................................................................................................. 207
29.1 ARP Table Overview .....................................................................................207
29.1.1 How ARP Works ...................................................................................207
29.2 Viewing the ARP Table ..................................................................................207
Chapter 30
Configure Clone ................................................................................................... 209
30.1 Configure Clone Settings ..............................................................................209
Chapter 31
Introducing Commands...................................................................................... 211
31.1 Overview ........................................................................................................211
31.2 Accessing the CLI ..........................................................................................211
31.2.1 The Console Port ..................................................................................211
31.2.1.1 Initial Screen ...............................................................................212
31.3 The Login Screen ...........................................................................................212
31.4 Command Syntax Conventions ......................................................................212
31.5 Changing the Password .................................................................................213
31.6 Privilege Levels ..............................................................................................213
31.7 Command Modes ...........................................................................................214
31.8 Getting Help ...................................................................................................215
31.8.1 List of Available Commands .................................................................216
31.9 Using Command History ................................................................................217

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16 Table of Contents
31.10 Saving Your Configuration ............................................................................217
31.10.1 Switch Configuration File ....................................................................217
31.10.2 Logging Out ........................................................................................218
31.11 Command Summary ....................................................................................218
31.11.1 User Mode ..........................................................................................218
31.11.2 Enable Mode .......................................................................................219
31.11.3 General Configuration Mode ...............................................................224
31.11.4 interface port-channel Commands ......................................................233
31.11.5 config-vlan Commands .......................................................................237
31.11.6 mvr Commands ...................................................................................238
Chapter 32
User and Enable Mode Commands ................................................................... 241
32.1 Overview ........................................................................................................241
32.2 show Commands ...........................................................................................241
32.2.1 show system-information ......................................................................241
32.2.2 show ip ..................................................................................................242
32.2.3 show logging .........................................................................................242
32.2.4 show interface .......................................................................................242
32.2.5 show mac address-table .......................................................................243
32.3 ping ................................................................................................................244
32.4 traceroute .......................................................................................................244
32.5 Copy Port Attributes .......................................................................................245
32.6 Configuration File Maintenance .....................................................................246
32.6.1 Using a Different Configuration File ......................................................246
32.6.2 Resetting to the Factory Default ...........................................................247
Chapter 33
Configuration Mode Commands......................................................................... 249
33.1 Enabling IGMP Snooping ...............................................................................249
33.2 Configure IGMP Filter ....................................................................................250
33.3 Enabling STP .................................................................................................251
33.4 no Command Examples .................................................................................252
33.4.1 Disable Commands .............................................................................252
33.4.2 Resetting Commands ...........................................................................253
33.4.3 Re-enable commands ...........................................................................253
33.4.4 Other Examples of no Commands ........................................................253
33.4.4.1 no trunk .......................................................................................254
33.4.4.2 no port-access-authenticator .......................................................254
33.4.4.3 no ssh ..........................................................................................255
33.5 Queuing Method Commands .........................................................................255
33.6 Static Route Commands ................................................................................256
33.7 Enabling MAC Filtering ..................................................................................257

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Table of Contents 17
33.8 Enabling Trunking ..........................................................................................258
33.9 Enabling Port Authentication ..........................................................................259
33.9.1 RADIUS Server Settings .......................................................................259
33.9.2 Port Authentication Settings .................................................................260
Chapter 34
Interface Commands............................................................................................ 263
34.1 Overview ........................................................................................................263
34.2 Interface Command Examples .......................................................................263
34.2.1 interface port-channel ...........................................................................263
34.2.2 bpdu-control ..........................................................................................263
34.2.3 broadcast-limit ......................................................................................264
34.2.4 bandwidth-limit ......................................................................................264
34.2.5 mirror ....................................................................................................265
34.2.6 gvrp .......................................................................................................266
34.2.7 ingress-check ........................................................................................266
34.2.8 frame-type .............................................................................................267
34.2.9 weight ...................................................................................................267
34.2.10 egress set ...........................................................................................268
34.2.11 qos priority ..........................................................................................268
34.2.12 name ...................................................................................................269
34.2.13 speed-duplex ......................................................................................269
34.2.14 test ......................................................................................................269
34.3 Interface no Command Examples ..................................................................270
34.3.1 no bandwidth-limit .................................................................................270
Chapter 35
IEEE 802.1Q Tagged VLAN Commands ............................................................. 271
35.1 Configuring Tagged VLAN ..............................................................................271
35.2 Global VLAN1Q Tagged VLAN Configuration Commands .............................272
35.2.1 GARP Status .........................................................................................272
35.2.2 GARP Timer .........................................................................................272
35.2.3 GVRP Timer .........................................................................................273
35.2.4 Enable GVRP .......................................................................................273
35.2.5 Disable GVRP .......................................................................................273
35.3 Port VLAN Commands ...................................................................................273
35.3.1 Set Port VID ..........................................................................................274
35.3.2 Set Acceptable Frame Type .................................................................274
35.3.3 Enable or Disable Port GVRP ...............................................................274
35.3.4 Modify Static VLAN ...............................................................................275
35.3.4.1 Modify a Static VLAN Table Example ..........................................275
35.3.4.2 Forwarding Process Example .....................................................275
35.3.5 Delete VLAN ID ....................................................................................276

ES-2048 User’s Guide
18 Table of Contents
35.4 Enable VLAN .................................................................................................276
35.5 Disable VLAN .................................................................................................277
35.6 Show VLAN Setting .......................................................................................277
Chapter 36
Multicast VLAN Registration Commands .......................................................... 279
36.1 Overview ........................................................................................................279
36.2 Create Multicast VLAN ...................................................................................279
Chapter 37
Troubleshooting ................................................................................................... 281
37.1 Problems Starting Up the Switch ....................................................................281
37.2 Problems Accessing the Switch .....................................................................281
37.2.1 Pop-up Windows, JavaScripts and Java Permissions ..........................282
37.2.1.1 Internet Explorer Pop-up Blockers ..............................................282
37.2.1.2 JavaScripts ..................................................................................285
37.2.1.3 Java Permissions ........................................................................287
37.3 Problems with the Password ..........................................................................289
Appendix A
Product Specifications ........................................................................................ 291
Appendix B
IP Addresses and Subnetting ............................................................................. 295
Index...................................................................................................................... 303