ZyXEL Communications ES-3024 User Manual

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Dimension

ES-3024

Ethernet Switch

June 2003

Version 1

User’s Guide

Dimension ES-3024 Ethernet Switch

Copyright

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.

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 patents rights of others. ZyXEL further reserES-3024 the right to make changes in any products described herein without notice. This publication is subject to change without notice.

Trademarks

Trademarks mentioned in this publication are used for identification purposes only and may be properties of their respective owners.

ii Copyright

Dimension ES-3024 Ethernet Switch

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 (2) 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 value, and will be solely at the discretion of ZyXEL. This warranty shall not apply if the product is 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 of character 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 giES-3024 you specific legal rights, and you may also have other rights that vary from country to country.

ZyXEL Limited Warranty iii

Dimension ES-3024 Ethernet Switch

Interference Statements and Warnings

FCC Interference Statement

This switch complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:

(1) This switch may not cause harmful interference.

(2) This switch must accept any interference received, including interference that may cause undesired operations.

FCC Warning

This equipment 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 equipment 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 equipment 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:

Certifications

Refer to the product page at www.zyxel.com.

iv Interference Statements and Warnings

Dimension ES-3024 Ethernet Switch

Customer Support

If you have questions about your ZyXEL product or desire assistance, contact ZyXEL Communications Corporation offices worldwide, in one of the following ways:

Contacting Customer Support

When you contact your customer support representative, have the following information ready:

♦ Product model and serial number.

♦ Firmware version information.

♦ Warranty information.

♦ Date you received your product.

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

METHOD E-MAIL: SUPPORT TELEPHONE WEB SITE

LOCATION SALES FAX FTP SITE

WORLDWIDE

AMERICA

support@zyxel.com.tw +886-3-578-3942 www.zyxel.com

www.europe.zyxel.com

sales@zyxel.com.tw

support@zyxel.com +1-800-255-4101 www.us.zyxel.com NORTH

sales@zyxel.com

support@zyxel.dk +45-3955-0700 www.zyxel.dk SCANDINAVIA

sales@zyxel.dk +45-3955-0707 ftp.zyxel.dk

support@zyxel.de +49-2405-6909-0 www.zyxel.de GERMANY

sales@zyxel.de +49-2405-6909-99

+886-3-578-2439 ftp.europe.zyxel.com

ftp.zyxel.com

REGULAR MAIL

ZyXEL Communications Corp., 6 Innovation Road II, Science-Based Industrial Park, Hsinchu, 300, Taiwan

ZyXEL Communications A/S, Columbusvej 5, 2860 Soeborg, Denmark

ZyXEL Deutschland GmbH. Adenauerstr. 20/A2 D-52146 Wuerselen, Germany

Customer Support v

Dimension ES-3024 Ethernet Switch

Copyright ...................................................................................................................................................................ii

ZyXEL Limited Warranty...........................................................................................................................................iii

Interference Statements and Warnings ....................................................................................................................iv

Customer Support .................................................................................................................................................... v

Preface ................................................................................................................................................................... 15

Features And Applications ........................................................................................................................................................... I

Chapter 1 Getting to Know the ES-3024 ........................................................................................................ 1-1

1.1 Features .................................................................................................................................................1-1

1.2 Applications...........................................................................................................................................1-3

Hardware Installation & Connections ......................................................................................................................................... II

Chapter 2 Hardware Installation ..................................................................................................................... 2-1

2.1 Installation Scenarios ............................................................................................................................2-1

Chapter 3 Hardware Connections .................................................................................................................. 3-1

3.1 Front Panel ............................................................................................................................................3-1

3.2 Uplink Modules.....................................................................................................................................3-2

3.3 Rear Panel..............................................................................................................................................3-4

3.4 Front Panel LEDs ..................................................................................................................................3-4

3.5 Stacking Scenario Examples .................................................................................................................3-5

3.6 Uplink Scenario Example...................................................................................................................... 3-7

3.7 Configuring the ES-3024.......................................................................................................................3-8

Getting Started............................................................................................................................................................................. III

Chapter 4 Introducing the Web Configurator.................................................................................................. 4-1

4.1 Introduction ...........................................................................................................................................4-1

4.2 System Login......................................................................................................................................... 4-1

4.3 Switch Lockout......................................................................................................................................4-2

4.4 Resetting the Switch..............................................................................................................................4-2

4.5 Home Screen .........................................................................................................................................4-3

4.6 Screen Overview ...................................................................................................................................4-5

Chapter 5 General, Switch and IP Setup........................................................................................................5-1

5.1 Introduction ...........................................................................................................................................5-1

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Dimension ES-3024 Ethernet Switch

5.2 General Setup ........................................................................................................................................ 5-1

5.3 IGMP Snooping .................................................................................................................................... 5-2

5.4 Introduction to VLANs .........................................................................................................................5-2

5.5 Introduction to Spanning Tree Protocol (STP)...................................................................................... 5-2

5.6 Dynamic Link Aggregation................................................................................................................... 5-4

5.7 802.1X Authentication .......................................................................................................................... 5-4

5.8 Switch Setup Screen.............................................................................................................................. 5-4

5.9 IP Setup ................................................................................................................................................. 5-8

Chapter 6 Port Setup...................................................................................................................................... 6-1

6.1 Introduction ........................................................................................................................................... 6-1

6.2 IEEE 802.1x .......................................................................................................................................... 6-2

6.3 Configure 802.1x on a Port ................................................................................................................... 6-2

Advanced Applications ...............................................................................................................................................................IV

Chapter 7 Static Route Setup......................................................................................................................... 7-1

7.1 Static Route Setup ................................................................................................................................. 7-1

7.2 Static Route Edit Setup .........................................................................................................................7-2

Chapter 8 VLAN Setup................................................................................................................................... 8-1

8.1 Introduction to IEEE 802.1Q Tagged VLAN ....................................................................................... 8-1

8.2 Configuring Tagged VLANs................................................................................................................. 8-3

8.3 Introduction to Port-based VLANs ....................................................................................................... 8-6

8.4 Configuring Port-based VLANs............................................................................................................ 8-6

Chapter 9 Static MAC Forward Setup............................................................................................................ 9-1

9.1 Introduction to Static MAC Forward Setup .......................................................................................... 9-1

9.2 Configuring or Editing a Static MAC Forward Rule ............................................................................ 9-2

Chapter 10 Filter Setup .................................................................................................................................. 10-1

10.1 Introduction to Port Filtering............................................................................................................... 10-1

10.2 Configuring or Editing a Filter Rule ................................................................................................... 10-2

Chapter 11 Mirror Setup................................................................................................................................. 11-1

11.1 Introduction to Port Mirroring............................................................................................................. 11-1

11.2 Configuring or Editing a Mirror Rule ................................................................................................. 11-2

Chapter 12 Bandwidth Control Setup............................................................................................................. 12-1

12.1 Introduction to Bandwidth Control ..................................................................................................... 12-1

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12.2 Configuring or Editing a Bandwidth Control Rule .............................................................................12-2

Chapter 13 Trunk Setup ................................................................................................................................. 13-1

13.1 Introduction to Trunking ..................................................................................................................... 13-1

13.2 Trunk Setup .........................................................................................................................................13-1

Advanced Management ...............................................................................................................................................................V

Chapter 14 SNMP...........................................................................................................................................14-1

14.1 About SNMP .......................................................................................................................................14-1

14.2 Supported MIBs ..................................................................................................................................14-2

14.3 Configuring SNMP..............................................................................................................................14-2

14.4 SNMP Traps ........................................................................................................................................ 14-3

Chapter 15 RADIUS Setup.............................................................................................................................15-1

15.1 Introduction to RADIUS .....................................................................................................................15-1

15.2 RADIUS Setup .................................................................................................................................... 15-1

Chapter 16 Logins ..........................................................................................................................................16-1

16.1 Introduction .........................................................................................................................................16-1

Chapter 17 Maintenance ................................................................................................................................ 17-1

17.1 Maintenance ........................................................................................................................................17-1

17.2 Remote Management........................................................................................................................... 17-3

Chapter 18 Firmware and Configuration File Maintenance............................................................................ 18-1

18.1 Firmware Upgrade............................................................................................................................... 18-1

18.2 Restore a Configuration File ...............................................................................................................18-1

18.3 Back Up a Configuration File..............................................................................................................18-2

18.4 Command Line FTP ............................................................................................................................18-2

Chapter 19 Statistics.......................................................................................................................................19-1

19.1 Introduction to Statistics...................................................................................................................... 19-1

Chapter 20 Diagnostic .................................................................................................................................... 20-1

20.1 Diagnostic............................................................................................................................................ 20-1

Commands...................................................................................................................................................................................VI

Chapter 21 Commands Introduction............................................................................................................... 21-1

21.1 Command Line Interface Overview ....................................................................................................21-1

21.2 Command Summary............................................................................................................................21-2

Chapter 22 Command Examples ...................................................................................................................22-1

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22.1 Commonly Used Commands Overview.............................................................................................. 22-1

22.2 Sys Commands.................................................................................................................................... 22-1

Chapter 23 IEEE 802.1Q Tagged VLAN ........................................................................................................ 23-1

23.1 IEEE 802.1Q Tagged VLAN Overview.............................................................................................. 23-1

23.2 Filtering Databases.............................................................................................................................. 23-1

23.3 Configuring Tagged VLAN ................................................................................................................ 23-1

23.4 IEEE VLAN1Q Tagged VLAN Configuration Commands................................................................ 23-3

23.5 VLAN1Q SVLAN Active Command .................................................................................................23-8

23.6 VLAN1Q SVLAN Inactive Command ............................................................................................... 23-8

23.7 VLAN1Q SVLAN List Command...................................................................................................... 23-8

23.8 VLAN1Q VLAN List Command ........................................................................................................ 23-9

Appendices and Index................................................................................................................................................................VII

Appendix A Product Specifications........................................................................................................................... 1

Index......................................................................................................................................................................... 4

Table of Contents ix

Dimension ES-3024 Ethernet Switch

List of Figures

Figure 1-1 Backbone Application ............................................................................................................................................... 1-4

Figure 1-2 Bridging Application ................................................................................................................................................. 1-5

Figure 1-3 High Performance Switched Workgroup Application ...............................................................................................1-6

Figure 1-4 VLAN Workgroup Application .................................................................................................................................1-7

Figure 1-5 Shared Server Using VLAN Example....................................................................................................................... 1-8

Figure 2-1 Attaching Rubber Feet...............................................................................................................................................2-1

Figure 2-2 Attaching Mounting Brackets and Screws................................................................................................................. 2-2

Figure 2-3 Mounting the ES to an EIA standard 19-inch rack ....................................................................................................2-3

Figure 3-1 ES-3024 Front Panel ................................................................................................................................................3-1

Figure 3-2 Loosening the Screws and Removing the Cover Plate.............................................................................................. 3-3

Figure 3-3 Inserting An Example Module................................................................................................................................... 3-3

Figure 3-4 ES-3024 Rear Panel................................................................................................................................................... 3-4

Figure 3-5 Front Panel LEDs ...................................................................................................................................................... 3-4

Figure 3-6 Stacking Example 1................................................................................................................................................... 3-5

Figure 3-7 Stacking Example 2................................................................................................................................................... 3-6

Figure 3-8 Stacking Example 3................................................................................................................................................... 3-7

Figure 3-9 Uplink Example......................................................................................................................................................... 3-8

Figure 4-1 Web Configurator - Login .........................................................................................................................................4-1

Figure 4-2 Change Password Screen...........................................................................................................................................4-2

Figure 4-3 ES-3024 Home Screen ..............................................................................................................................................4-3

Figure 5-1 General Setup ............................................................................................................................................................ 5-1

Figure 5-2 Switch Setup.............................................................................................................................................................. 5-5

Figure 5-3 IP Setup ..................................................................................................................................................................... 5-9

Figure 6-1 Port Setup Summary Screen...................................................................................................................................... 6-1

Figure 6-2 Port Edit Screen......................................................................................................................................................... 6-3

Figure 7-1 Static Route Setup .................................................................................................................................................... 7-1

Figure 7-2 Static Route Edit Setup.............................................................................................................................................. 7-2

Figure 8-1 VLAN Static Entry Setup.......................................................................................................................................... 8-3

Figure 8-2 Edit VLAN Static Entry ............................................................................................................................................ 8-5

Figure 8-3 Port-based VLAN Setup............................................................................................................................................ 8-7

x Lists of Figures and Charts

Dimension ES-3024 Ethernet Switch

Figure 8-4 Port-based VLAN Example.......................................................................................................................................8-8

Figure 9-1 Static MAC Forward Setup........................................................................................................................................9-1

Figure 9-2 Configuring or Editing a Static MAC Forward Rule.................................................................................................9-2

Figure 10-1 Filter Setup ............................................................................................................................................................10-1

Figure 10-2 Configuring or Editing a Filter Rule......................................................................................................................10-3

Figure 11-1 Mirror Setup...........................................................................................................................................................11-1

Figure 11-2 Configuring or Editing a Mirror Rule....................................................................................................................11-3

Figure 12-1 Bandwidth Control Setup ......................................................................................................................................12-1

Figure 12-2 Bandwidth Control Setup Edit...............................................................................................................................12-3

Figure 13-1 Trunk Setup............................................................................................................................................................13-2

Figure 14-1 SNMP Management Model ...................................................................................................................................14-1

Figure 14-2 SNMP Setup ..........................................................................................................................................................14-3

Figure 15-1 RADIUS Server.....................................................................................................................................................15-1

Figure 15-2 RADIUS Setup ......................................................................................................................................................15-1

Figure 16-1 Logins....................................................................................................................................................................16-1

Figure 16-2 Edit Logins ............................................................................................................................................................16-2

Figure 17-1 Maintenance...........................................................................................................................................................17-1

Figure 17-2 Remote Management.............................................................................................................................................17-3

Figure 17-3 Edit Secured Client................................................................................................................................................17-4

Figure 18-1 Firmware Upgrade................................................................................................................................................. 18-1

Figure 18-2 Restore Configuration............................................................................................................................................18-2

Figure 18-3 Backup Configuration............................................................................................................................................18-2

Figure 19-1 Statistics................................................................................................................................................................. 19-1

Figure 19-2 STP Statistics.........................................................................................................................................................19-2

Figure 19-3 Aggregator ID:.......................................................................................................................................................19-4

Figure 19-4 LACP Status ..........................................................................................................................................................19-4

Figure 19-5 Hardware Monitor .................................................................................................................................................19-5

Figure 19-6 802.1Q VLAN Status.............................................................................................................................................19-7

Figure 19-7 Port Statistics .........................................................................................................................................................19-8

Figure 19-8 Port Details ............................................................................................................................................................19-9

Figure 20-1 Diagnostic Screen ..................................................................................................................................................20-1

Figure 22-1 Log Disp Command Example................................................................................................................................22-1

Lists of Figures and Charts xi

Dimension ES-3024 Ethernet Switch

Figure 22-2 Version Command Example.................................................................................................................................. 22-2

Figure 22-3 Monitor Status Command Example ...................................................................................................................... 22-2

Figure 23-1 Tagged VLAN Configuration and Activation Example......................................................................................... 23-2

Figure 23-2 CPU VLAN Configuration and Activation Example ............................................................................................ 23-2

Figure 23-3 Deleting Default VLAN Example......................................................................................................................... 23-3

Figure 23-4 GARP Status Command Example ......................................................................................................................... 23-3

Figure 23-5 GARP Timer Command Example ......................................................................................................................... 23-4

Figure 23-6 GARP Status Command Example ......................................................................................................................... 23-4

Figure 23-7 VLAN1Q Port Status Command Example ............................................................................................................ 23-5

Figure 23-8 VLAN1Q Port Default VID Command Example.................................................................................................. 23-5

Figure 23-9 VLAN1Q Port Accept Command Example...........................................................................................................23-5

Figure 23-10 VLAN1Q Port GVRP Command Example .........................................................................................................23-5

Figure 23-11 VLAN1Q Port GVRP Command Example .........................................................................................................23-5

Figure 23-12 Modifying the Static VLAN Example................................................................................................................. 23-7

Figure 23-13 VLAN1Q SVLAN Delentry Command Example ............................................................................................... 23-8

Figure 23-14 VLAN1Q SVLAN List Command......................................................................................................................23-9

Figure 23-15 VLAN1Q SVLAN List Command......................................................................................................................23-9

Figure 23-16 VLAN1Q Status Command Example................................................................................................................ 23-10

List of Charts

Chart 1 General Product Specifications ......................................................................................................................................... 1

Chart 2 Performance and Management Specifications .................................................................................................................. 2

Chart 3 Physical and Environmental Specifications ...................................................................................................................... 3

xii Lists of Figures and Charts

Dimension ES-3024 Ethernet Switch

List of Tables

Table 3-1 ES-3024: Front Panel Ports .........................................................................................................................................3-1

Table 3-2 ES-3024 Switches: LED Descriptions.........................................................................................................................3-4

Table 4-1 Navigation Panel Links ...............................................................................................................................................4-4

Table 4-2 Web Configurator Screen Overview............................................................................................................................4-5

Table 5-1 General Setup ..............................................................................................................................................................5-1

Table 5-2 STP Path Costs............................................................................................................................................................5-3

Table 5-3 STP Port States............................................................................................................................................................5-3

Table 5-4 Switch Setup................................................................................................................................................................5-6

Table 5-5 IP Setup .......................................................................................................................................................................5-9

Tabl e 6-1 Port Setup Summary Screen .......................................................................................................................................6-2

Table 6-2 Port Edit Screen...........................................................................................................................................................6-4

Table 7-1 Static Route Setup .......................................................................................................................................................7-1

Table 7-2 Static Route Edit Setup................................................................................................................................................7-2

Table 8-1 GARP Terminology.....................................................................................................................................................8-2

Table 8-2 VLAN Static Entry Setup............................................................................................................................................8-3

Table 8-3 Edit VLAN Static Entry ..............................................................................................................................................8-5

Table 8-4 Port-based VLAN Setup..............................................................................................................................................8-8

Table 9-1 Static MAC Forward Setup.........................................................................................................................................9-1

Table 9-2 Configuring or Editing a Static MAC Forward Rule...................................................................................................9-2

Table 10-1 Filter Setup..............................................................................................................................................................10-1

Table 10-2 Configuring or Editing a Filter Rule .......................................................................................................................10-3

Table 11-1 Mirror Setup............................................................................................................................................................11-1

Table 11-2 Configuring or Editing a Mirror Rule......................................................................................................................11-3

Table 12-1 Bandwidth Control Setup........................................................................................................................................12-1

Table 12-2 Bandwidth Control Setup Edit ................................................................................................................................12-3

Table 13-1 Trunk Groups ..........................................................................................................................................................13-1

Table 13-2 Trunk Setup ............................................................................................................................................................. 13-2

Table 14-1 SNMP Commands...................................................................................................................................................14-2

Table 14-2 SNMP Setup............................................................................................................................................................14-3

Table 14-3 SNMP Traps ............................................................................................................................................................14-3

List of Tables xiii

Dimension ES-3024 Ethernet Switch

Table 15-1 RADIUS Setup........................................................................................................................................................15-2

Table 16-1 Logins ..................................................................................................................................................................... 16-2

Table 17-1 Maintenance............................................................................................................................................................ 17-2

Table 17-2 Remote Management .............................................................................................................................................. 17-3

Table 17-3 Edit Secured Client ................................................................................................................................................. 17-4

Table 18-1 Filename Conventions.............................................................................................................................................18-3

Table 18-2 General Commands for GUI-based FTP Clients..................................................................................................... 18-4

Table 19-1 Statistics .................................................................................................................................................................. 19-1

Table 19-2 STP Statistics ..........................................................................................................................................................19-2

Table 19-3 LACP Statistics....................................................................................................................................................... 19-4

Table 19-4 Hardware Monitor................................................................................................................................................... 19-6

Table 19-5 802.1Q VLAN Status.............................................................................................................................................. 19-7

Table 19-6 Port Statistics ..........................................................................................................................................................19-8

Table 19-7 Port Details............................................................................................................................................................19-10

Table 20-1 Diagnostic Screen ...................................................................................................................................................20-1

Table 21-1 command summary................................................................................................................................................. 21-2

xiv Lists of Tables

Dimension ES-3024 Ethernet Switch

Preface

Congratulations on your purchase from the Dimension series of Ethernet switches.

This preface introduces you to the ES-3024 and discusses the conventions of this User’s Guide. It also provides information on other related documentation.

About the ES-3024

The ES-3024 Ethernet switch is a managed switch with features ideally suited in any environment with unshielded twisted pair (UTP) wiring. It can deliver broadband IP services to:

 Multi-tenant unit (MTU) buildings (hotels, motels, resorts, residential multi-dwelling units, office

buildings, educational establishments, etc.)

 Public facilities (convention centers, airports, plazas, train stations, etc.)

 Enterprises.

It can also be deployed as a mini-POP (point-of-presence) in a building basement delivering 10/100Mbps data service over Category 5 wiring to each customer.

General Syntax Conventions

 This guide shows you how to configure the switch using the web configurator and CLI commands. See the

online HTML help for information on individual web configurator screens.

 Mouse action sequences are denoted using a comma. For example, click Start, Settings, Control Panel,

Network means first you click Start, click or move the mouse pointer over Settings, then click or move the mouse pointer over Control Panel and finally click (or double-click) Network.

 “Enter” means for you to type one or more characters. “Select” or “Choose” means for you to use one of

the predefined choices.

 Predefined choices are in Bold Arial font.

 Button and field labels, links and screen names in are in Bold Times New Roman font.

 For brevity’s sake, we will use “e.g.” as shorthand for “for instance”, and “i.e.” as shorthand for “that is” or

“in other words” throughout this manual.

1.1.1 Hardware Features

24 10/100 Mbps Fast Ethernet Ports

Connect up to 24 computers or switches to the 10/100Mbps auto-negotiating, automatic cable sensing (auto-MDIX) Ethernet RJ-45 ports. All Ethernet ports support:

 IEEE 802.3/3u/3z/3ab standards

 Back pressure flow control in half duplex mode

 IEEE 802.3x flow control in full duplex mode

Two Slots for Uplink Modules

The modules allow the ES-3024 to connect to another WAN switch or daisy-chain to other switches.

One Slot for Stacking Module

Up to eight switches may be stacked using stacking modules.

Console Port

Use the console port for local management of the switch.

Fans

The fans cool the ES-3024 sufficiently to allow reliable operation of the switch in even poorly ventilated rooms or basements.

Getting to Know the ES-3024 1-1

Dimension ES-3024 Ethernet Switch

1.1.2 Firmware Features

IP Protocols

 IP Host (No routing)

 Telnet for configuration and monitoring

 SNMP for management

 SNMP MIB II (RFC 1213)

 SNMP v1 RFC 1157

 SNMPv2, SNMPv2c or later version, compliant with RFC 2011 SNMPv2 MIB for IP, RFC 2012

SNMPv2 MIB for TCP, RFC 2013 SNMPv2 MIB for UDP

 Ethernet MIBs RFC 1643

 Bridge MIBs RFC 1493

 SMI RFC 1155

 RMON RFC 1757

o SNMPv2, SNMPv2c RFC 2674

Management

 Web configurator

 Command-line interface locally via console port or remotely via Telnet

 SNMP

System Monitoring

• System status (link status, rates, statistics counters)

• SNMP

• Temperatures, voltage, fan speed reports and alarms

• Port Mirroring allows you to analyze one port’s traffic from another.

Security

 System management password protection  Port-based VLAN

 IEEE 802.1Q VLAN  802.1x Authentication

 Limit dynamic port MAC address learning  Static MAC address filtering

Port Trunking

The ES-3024 adheres to the 802.3ad standard for static and dynamic port trunking.

Bandwidth Control

 The ES-3024 supports rate limiting in 1Kbps increments allowing you to create different service plans

1-2 Getting to Know the ES-3024

Dimension ES-3024 Ethernet Switch

 The ES-3024 supports IGMP snooping enabling group multicast traffic to be only forwarded to ports that

are members of that group; thus allowing you to significantly reduce multicast traffic passing through your switch.

 Broadcast storm control

Quality of Service

 Four priority queues so you can ensure mission-critical data gets delivered on time.

 Follows the IEEE 802.1p priority setting standard based on source/destination MAC addresses.

STP (Spanning Tree Protocol)

STP detects and breaks network loops and provides backup links between switches, bridges or routers. It allows a switch to interact with other STP-compliant switches in your network to ensure that only one path exists between any two stations on the network.

1.2 Applications

This section shows a few examples of using the ES-3024 in various network environments.

1.2.1 Backbone Application

In this 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 directly to the switch’s port or connect other switches to the ES-3024.

In this example, all computers connected directly or indirectly to the ES-3024 can share super high-speed applications on the Gigabit server.

To expand the network, simply add more networking devices such as switches, routers, firewalls, print servers etc.

Getting to Know the ES-3024 1-3

Dimension ES-3024 Ethernet Switch

Figure 1-1 Backbone Application

1.2.2 Bridging Example

In this example application the switch is the ideal solution for different company departments to connect 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 superfast uplink connection by selecting from an array of uplink modules compatible with the ES-3024.

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

1-4 Getting to Know the ES-3024

Dimension ES-3024 Ethernet Switch

Figure 1-2 Bridging Application

Full-duplex mode operation only applies to point-to-point access (for example, when attaching

the switch to a workstation, server, or another switch). When connecting to hubs, use a standard

cascaded connection set at half-duplex operation.

1.2.3 High Performance Switched Workgroup Example

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

Switching to higher-speed LANs such as FDDI or ATM 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 ES-3024 can provide the same bandwidth as FDDI and 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.

Getting to Know the ES-3024 1-5

Dimension ES-3024 Ethernet Switch

Figure 1-3 High Performance Switched Workgroup Application

1.2.4 IEEE 802.1Q VLAN Application Examples

This section shows a workgroup and a shared server example using 802.1Q tagged VLANs. For more information on VLANs, see the Switch Setup and VLAN Setup chapters in this User’s Guide. 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.

Tag-based VLAN Workgroup Example

Ports in the same VLAN group share the same 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 re-cabling.

1-6 Getting to Know the ES-3024

Dimension ES-3024 Ethernet Switch

Figure 1-4 VLAN Workgroup Application

VLAN Shared Server Example

Shared resources such as a server can be used by all ports in the same VLAN as the server, as shown in the following example. In this example, only ports that need access to the server need belong to VLAN 3 while they can belong to other VLAN groups too.

Getting to Know the ES-3024 1-7

Dimension ES-3024 Ethernet Switch

Figure 1-5 Shared Server Using VLAN Example

1-8 Getting to Know the ES-3024

Hardware Installation & Connections

Part II

Hardware Installation & Connections

This part acquaints you with installation scenarios of the ES-3024, instructs you on how to make

the hardware connections including installing/removing modules, shows some stacking/uplink

examples and explains the front panel LEDs.

Dimension ES-3024 Ethernet Switch

Chapter 2

Hardware

This chapter shows two switch installation scenarios.

Installation

2.1 Installation Scenarios

The switch can be placed on a desktop or rack-mounted on a standard EIA rack. Use the rubber feet in a desktop installation and the brackets in a rack-mounted installation.

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.

2.1.1 Desktop Installation Procedure

Step 1. Make sure the switch is clean and dry.

Step 2. Set 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.

Step 3. Make sure there is enough clearance around the switch to allow air circulation and the attachment of cables

and the power cord.

Step 4. Remove the adhesive backing from the rubber feet.

Step 5. Attach 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 switches when stacking.

Figure 2-1 Attaching Rubber Feet

Do not block the ventilation holes. Leave space between switches when stacking.

Hardware Installation 2-1

Dimension ES-3024 Ethernet Switch

2.1.2 Rack-Mounted Installation

The switch can be mounted on an EIA standard size, 19-inch rack or in a wiring closet with other equipment. Follow the steps below to mount your switch on a standard EIA rack using a rack-mounting kit.

Step 1. Align one bracket with the holes on one side of the switch and secure it with the bracket screws smaller

than the rack-mounting screws.

Step 2. Attach the other bracket in a similar fashion.

Figure 2-2 Attaching Mounting Brackets and Screws

Step 3. After attaching both mounting brackets, position the switch in the rack by lining up the holes in the

brackets with the appropriate holes on the rack. Secure the switch to the rack with the rack-mounting screws.

2-2 Hardware Installation

Dimension ES-3024 Ethernet Switch

Figure 2-3 Mounting the ES to an EIA standard 19-inch rack

Hardware Installation 2-3

Dimension ES-3024 Ethernet Switch

Chapter 3

Hardware

This chapter acquaints you with the front and rear panels, shows you how to make the connections,

install/remove (optional) modules and explains the LEDs.

Connections

3.1 Front Panel

The following figure shows the front panel of the ES-3024. The front panel contains a console port for local switch management, switch LEDs, 24 RJ-45 Ethernet ports and two (optional) uplink modules.

Figure 3-1 ES-3024 Front Panel

Table 3-1 ES-3024: Front Panel Ports

CONNECTOR DESCRIPTION

Console The console port is for local configuration of the ES-3024 switch.

24 10/100 Mbps RJ-45 Ethernet connectors

Connect these ports to a computer, a hub, an Ethernet switch or router.

3.1.1 Console Port

For local management, you can use a computer with terminal emulation software configured to the following parameters:

 VT100 terminal emulation  9600 bps

 No parity, 8 data bits, 1 stop bit  No flow control

Connect the male 9-pin end of the console cable to the console port of the ES-3024 switch. Connect the female end to a serial port (COM1, COM2 or other COM port) of your computer.

Hardware Connections 3-1

Dimension ES-3024 Ethernet Switch

3.1.2 Ethernet Ports

The ES-3024 has 10/100Mbps auto-negotiating, auto-crossover Ethernet ports. In 10/100Mbps Fast Ethernet, the speed can be 10Mbps or 100Mbps and the duplex mode can be half duplex or full duplex (100 Mbps only).

When auto-negotiation is turned on, an Ethernet port on the ES-3024 switch negotiates with the peer automatically to determine the connection speed and duplex mode. If the peer Ethernet port does not support auto-negotiation or turns off this feature, the ES-3024 switch determines the connection speed by detecting the signal on the cable and using half duplex mode. When the ES-3024 switch’s auto-negotiation is turned off, an Ethernet port uses the preconfigured speed and duplex mode when making a connection, thus requiring you to make sure that the settings of the peer Ethernet port are the same in order to connect.

Default Ethernet Negotiation Settings

The factory default negotiation settings for the Ethernet ports on the ES-3024 switch are:

o Speed: Auto o Duplex: Auto

o Flow control: On o Trunking: Disabled

Auto-crossover

All ports are auto-crossover, that is auto-MDIX ports (Media Dependent Interface Crossover), so you may use either a straight through Ethernet cable or crossover Ethernet cable for all Ethernet port connections. Autocrossover ports automatically sense whether they need to function as crossover or straight ports, so crossover cables can connect both computers and switches/hubs.

3.2 Uplink Modules

LEDs in the (optional) uplink modules are described in the corresponding module manual.

3.2.1 Installing Modules

You can install one stacking module and up to two (optional) uplink modules separately to meet the needs of your network. See your module manual for module specifications.

Modules are NOT hot swappable!

Follow these steps to install the optional modules.

Step 1. Make sure the power cord is not connected to the switch.

Step 2. Loosen the thumbscrews from the cover plate and remove the cover plate from the optional slot. Do not

discard the cover plate. You can put the cover plate back on if you remove the new module.

3-2 Hardware Connections

Dimension ES-3024 Ethernet Switch

Figure 3-2 Loosening the Screws and Removing the Cover Plate

Step 3. You should wear an anti-static wrist strap or touch any grounded or metal objects to discharge any bodily

static electricity before you continue.

Step 4. Remove the optional module from its protective anti-static packaging. Avoid touching the onboard

circuit components by holding it by the edge.

Step 5. Insert the optional module into an available expansion slot on the switch. Press it firmly until the

optional module snaps into place.

Step 6. Secure it to the switch with the retaining screws.

Slide the optional module

into the expansion slot until

it snaps into place.

Figure 3-3 Inserting An Example Module

Never force, bend or twist the optional modules into the expansion slots.

Step 7. See section 3.3.1 for instructions on connecting the power. The switch automatically detects the installed

optional module. Connect any necessary network cables to the optional module and check the LEDs to verify that it is functioning properly.

This is an example module only!

Hardware Connections 3-3

Dimension ES-3024 Ethernet Switch

3.3 Rear Panel

The following figure shows the rear panel of the ES-3024. The rear panel contains the slot for the stacking module and the power receptacle. See section 3.2.1 for information on inserting and removing modules.

Figure 3-4 ES-3024 Rear Panel

3.3.1 Power Connector

Make sure you are using the correct power source as shown on the panel.

To connect the power to the unit, insert the female end of power cord to the power receptacle on the rear panel. Connect the other end of the supplied power cord to a 100~240VAC/1.5A power outlet. Make sure that no objects obstruct the airflow of the fans (located on the side of the unit).

3.4 Front Panel LEDs

After you connect the power to the switch, view the LEDs to ensure proper functioning of the switch and as an aid in troubleshooting. The front panel LEDs are as follows.

Figure 3-5 Front Panel LEDs

The following table describes the LED indicators on the front panel of an ES-3024 switch.

Table 3-2 ES-3024 Switches: LED Descriptions

LED COLOR STATUS DESCRIPTION

Green Blinking

The system is transmitting/receiving through the stacking port.

PWR Green ON

3-4 Hardware Connections

OFF

The link through the stacking port is up.

The link through the stacking port is down.

The system is turned on.

The system is off.

Dimension ES-3024 Ethernet Switch

Table 3-2 ES-3024 Switches: LED Descriptions

LED COLOR STATUS DESCRIPTION

SYS Green Blinking

OFF

ALM Red ON

OFF

LNK/ACT

(Ethernet ports)

Yellow Blinking

FDX/COL

(Ethernet ports)

Green Blinking

OFF

Yellow

Blinking The Ethernet port is negotiating in half-duplex mode and collisions are

ON The Ethernet port is negotiating in full-duplex mode.

OFF The Ethernet port is negotiating in half-duplex mode and no collisions are

The system is rebooting and performing self-diagnostic tests.

The system is on and functioning properly.

The power is off or the system is not ready/malfunctioning.

There is a hardware failure.

The system is functioning normally.

The system is transmitting/receiving to/from a 10 Mbps Ethernet network.

The link to a 10 Mbps Ethernet network is up.

The link to a 10 Mbps Ethernet network is down.

The system is transmitting/receiving to/from a 100 Mbps Ethernet network.

The link to a 100 Mbps Ethernet network is up.

The link to a 100 Mbps Ethernet network is down.

occurring; the more collisions that occur the faster the LED blinks.

occurring.

3.5 Stacking Scenario Examples

Use Ethernet cables when stacking the switches. See the following figures for example stacking scenarios using the stacking module. The switches must form a closed ring in all scenarios.

Figure 3-6 Stacking Example 1

Hardware Connections 3-5

Dimension ES-3024 Ethernet Switch

Figure 3-7 Stacking Example 2

3-6 Hardware Connections

Dimension ES-3024 Ethernet Switch

Figure 3-8 Stacking Example 3

See the Commands Introduction and Commonly Used Commands chapters for information on configuring the stacking modules (as well as other ports) using line commands.

3.6 Uplink Scenario Example

Use Ethernet cables when daisy-chaining/uplinking the switches. See the following figure for an example uplink connection using the stacking module. You must uplink to a Gigabit switch when uplinking using the stacking module. Uplink scenarios using an uplink module depend on the uplink module you use.

Hardware Connections 3-7

Dimension ES-3024 Ethernet Switch

Figure 3-9 Uplink Example

3.7 Configuring the ES-3024

You may use the embedded web configurator or command line interface to configure the ES-3024. If you’re using the web configurator, you need Internet Explorer 5.5 and later or Netscape Navigator 6 and later.

You can access the command line interface using a terminal emulation program on a computer connected to the switch console port (see section 3.1.1) or access the switch via an Ethernet port using Telnet.

When using the command line interface, you can only save STP, 802.1q and 802.1d

configurations using the “config save” command. All other configurations done using the

command line interface are effective only until you restart the switch.

The next part of this guide discusses configuring the ES-3024 using the web configurator.

3-8 Hardware Connections

Getting Started

Part III

Getting Started

This part introduces you to the ES-3024 web configurator and how to use it to configure the

Getting Started menus.

III

Dimension ES-3024 Ethernet Switch

Chapter 4

Introducing

This section introduces the configuration and functions of the Web Configurator.

the Web Configurator

4.1 Introduction

The embedded web configurator allows you to manage the switch from anywhere through a standard browser such as Microsoft Internet Explorer or Netscape Navigator.

Use Internet Explorer 5.5 and later or Netscape Navigator 6 and later versions.

4.2 System Login

A local console port connection locks out all other connections. Log out from the console port

connection before logging in with the Web Configurator.

Step 1. Start Internet Explorer or Netscape Communicator web browser.

Step 2.

Type http:// and the IP address of the switch (for example, the default is 192.168.1.1) in the Location or Address field. Press Enter.

Figure 4-1 Web Configurator - Login

Step 3. The Password screen appears. The default username is admin and associated default password is 1234.

Step 4. Click Login. The Home screen of the web configurator displays.

4.2.1 Change Your Password

This screen prompts you to change your password if it is still set to the default. It is highly recommended you change the password.

Introducing The Web Configurator 4-1

Dimension ES-3024 Ethernet Switch

Figure 4-2 Change Password Screen

4.3 Switch Lockout

You are locked out from managing the switch if another administrator is currently logged in. You must wait until he/she has logged out before you can log in.

Moreover, you could lock yourself (and all others) out from the switch by:

1. Deleting the management VLAN (default is VLAN 1).

2. Deleting all port-based VLANs with the CPU port as a member. The “CPU port” is the management port of

the switch.

3. Filtering all traffic to the CPU port.

4. Disabling all ports.

5. Assigning minimum bandwidth to the CPU port. If you limit bandwidth to the CPU port, you may find that the

switch performs sluggishly or not at all.

Be careful not to lock yourself and others out of the switch.

4.4 Resetting the Switch

If you lock yourself (and others) from the switch or forget the ES-3024 password, you will need to reload the factory-default configuration file.

Uploading the factory-default configuration file replaces the current configuration file with the factory-default configuration file. This means that you will lose all previous configurations and the speed of the console port will be reset to the default of 9600bps with 8 data bit, no parity, one stop bit and flow control set to none. The password will also be reset to “1234” and the IP address to 192.168.1.1.

To upload the configuration file, do the following:

Step 1. Connect to the console port using a computer with terminal emulation software. See the Hardware

Connections chapter for details.

4-2 Introducing The Web Configurator

Dimension ES-3024 Ethernet Switch

Step 2. Disconnect and reconnect the switch’s power to begin a session. When you reconnect the switch’s power,

you will see the initial screen.

Step 3. When you see the message “Press any key to enter Debug Mode within 3 seconds” press any key to enter

debug mode.

Step 4. Type atlc after the Enter Debug Mode message.

Step 5. Wait for the Starting XMODEM upload message before activating XMODEM upload on your

terminal.

Step 6. After a successful firmware upload, type atgo to restart the switch.

The switch is now reinitialized with a default configuration file including the default password of “1234”.

4.5 Home Screen

The home screen consists of a navigation panel and a main panel.

Navigation

Panel

Click here for help on

configuring a screen.

This is the

Main Panel

Click Logout to exit the web configurator.

Figure 4-3 ES-3024 Home Screen

Introducing The Web Configurator 4-3

Dimension ES-3024 Ethernet Switch

Table 4-1 Navigation Panel Links

LABEL DESCRIPTION

Getting Started

General Setup This link takes you to a screen where you can configure general identification information

about the switch.

Switch Setup This link takes you to a screen where you can set up global switch parameters such as

VLAN type, MAC address learning, IGMP snooping, GARP, priority queues, STP, broadcast storm control, LACP trunking and 802.1X authentication.

IP Setup This link takes you to a screen where you can configure the IP address, subnet mask

(necessary for switch management) and DNS (domain name server).

Port Setup This link takes you to screens where you can configure settings for individual switch ports.

Advanced Applications

Static Route Setup This link takes you to screens where you can configure static routes. A static route

defines how the ES-3024 should forward traffic by configuring the TCP/IP parameters manually.

VLAN Setup This link takes you to screens where you can configure port-based or 802.1Q VLAN

(depending on what you configured in the Switch Setup menu).

Static MAC Forward This link takes you to screens where you can configure static MAC addresses for a port.

These static MAC addresses do not age out.

Filter Setup This link takes you to screens where you can filter traffic going from one port or ports to

another port or ports.

Mirror Setup This link takes you to screens where you can copy traffic from one port or ports to another

port in order that you can examine the traffic from the first port without interference

Bandwidth Control Setup

Trunk Setup This link takes you to a screen where you can logically aggregate physical links to form

Advanced Management

SNMP This link takes you to a screen where you can configure SNMP (Simple Network

RADIUS This link takes you to a screen where you can configure RADIUS (Remote Authentication

Logins This link takes you to a screen where you can change your password and configure

Maintenance This link takes you to screens where you can set UNIX syslog parameters, time and date

Statistics This link takes you to screens where you can view switch statistical information.

This link takes you to screens where you can cap the maximum bandwidth allowed from specified source(s) to specified destination(s).

one logical, higher-bandwidth link.

Management Protocol) for network management and monitoring.

Dial-In User Service), a protocol for user authentication that allows you to use an external server to validate an unlimited number of users.

passwords for up to four administrators. Only one administrator can be active at any one time.

and remote management as well as perform firmware and configuration file maintenance.

Diagnostic This link takes you to screens where you can view system logs and test port(s).

Logout Click here to exit the web configurator. You have to log in with your password again after

you log out. This is recommended after you finish a management session both for security reasons and so as you don’t lock out other switch administrators.

4-4 Introducing The Web Configurator

Dimension ES-3024 Ethernet Switch

4.5.1 Help

The web configurator’s online help has descriptions of individual screens and some supplementary information.

Click the HELP link from the home screen to view the online help’s home screen summary menu.

Click the HELP link from a web configurator screen other than the home screen to view an online help description of that screen.

4.6 Screen Overview

The following table lists the various web configurator screens.

Table 4-2 Web Configurator Screen Overview

GETTING STARTED ADVANCED APPLICATIONS ADVANCED MANAGEMENT

General Setup

Switch Setup

IP Setup

Port Setup

Edit Port Setup

Static Route Setup

Edit Static Route

VLAN Setup

Edit VLAN Static Entry

Static MAC Forward

Edit Static MAC Forward

Filter Setup

Edit Filter Setup

Mirror Setup

Edit Mirror Setup

Bandwidth Control Setup

Edit Bandwidth Control Setup

Trunk Setup

The next chapters discuss the Getting Started screens.

SNMP

RADIUS

Logins

Maintenance

Remote Management

Edit Secured Clients

Upgrade Firmware

Restore Configuration

Backup Configuration

Statistics

Diagnostic General

Diagnostic Ethernet Port

Introducing The Web Configurator 4-5

Dimension ES-3024 Ethernet Switch

Chapter 5

General,

This chapter describes how to configure the aforementioned screens.

Switch and IP Setup

5.1 Introduction

The General Setup screen allows you to configure general switch identification information. The Switch Setup screen allows you to set up and configure global switch features. The IP Setup screen allows you to configure an IP address, subnet mask and DNS (domain name server) for the switch for management purposes.

5.2 General Setup

Click General Setup in the navigation panel to open this screen.

Figure 5-1 General Setup

Table 5-1 General Setup

LABEL DESCRIPTION

System Name Choose a descriptive name for identification purposes. This name can be up to 30

alphanumeric characters long.

Location Enter the geographic location (up to 30 characters) of your switch.

Contact Person's Name

Click Apply to save your changes back to the switch. Click Cancel to begin configuring this screen afresh.

General, Switch and IP Setup 5-1

Enter the name (up to 30 characters) of the person in charge of this switch.

Dimension ES-3024 Ethernet Switch

5.3 IGMP Snooping

Traditionally, IP packets are transmitted in one of either two ways - Unicast (1 sender to 1 recipient) or Broadcast (1 sender to everybody on the network). Multicast delivers IP packets to just a group of hosts on the network.

IGMP (Internet Group Multicast Protocol) is a session-layer protocol used to establish membership in a multicast group - it is not used to carry user data. Refer to RFC 1112 and RFC 2236 for information on IGMP versions 1 and 2 respectively.

A layer-2 switch can passively snoop on IGMP Query, Report and Leave (IGMP version 2) packets transferred between IP multicast routers/switches and IP multicast hosts to learn the IP multicast group membership. It checks IGMP packets passing through it, picks out the group registration information, and configures multicasting accordingly.

Without IGMP snooping, multicast traffic is treated in the same manner as broadcast traffic, that is, it is forwarded to all ports. With IGMP snooping, group multicast traffic is only forwarded to ports that are members of that group. IGMP Snooping generates no additional network traffic, allowing you to significantly reduce multicast traffic passing through your switch.

5.4 Introduction to VLANs

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); the traffic must first go through a router.

In MTU (Multi-Tenant Unit) applications, VLAN is vital in providing isolation and security among the subscribers. When properly configured, VLAN prevents one subscriber from accessing the network resources of another on the same LAN, thus a user will not see the printers and hard disks of another user in the same building.

VLAN also increases network performance by limiting broadcasts to a smaller and more manageable logical broadcast domain. In traditional switched environments, all broadcast packets go to each and every individual port. With VLAN, all broadcasts are confined to a specific broadcast domain.

Note that VLAN is unidirectional; it only governs outgoing traffic.

See the VLAN Setup chapter for information on port-based and 802.1Q tagged VLANs.

5.5 Introduction to Spanning Tree Protocol (STP)

STP detects and breaks network loops and provides backup links between switches, bridges or routers. It allows a switch to interact with other STP-compliant switches in your network to ensure that only one route exists between any two stations on the network.

5.5.1 STP Terminology

The root bridge is the base of the spanning tree; it is the bridge with the lowest identifier value (MAC address).

5-2 General, Switch and IP Setup

Dimension ES-3024 Ethernet Switch

Path cost is the cost of transmitting a frame onto a LAN through that port. It is assigned according to the speed of the link to which a port is attached. The slower the media, the higher the cost - see the next table.

Table 5-2 STP Path Costs

LINK SPEED RECOMMENDED VALUE RECOMMENDED RANGE ALLOWED RANGE

Path Cost 4Mbps 250 100 to 1000 1 to 65535

Path Cost 10Mbps 100 50 to 600 1 to 65535

Path Cost 16Mbps 62 40 to 400 1 to 65535

Path Cost 100Mbps 19 10 to 60 1 to 65535

Path Cost 1Gbps 4 3 to 10 1 to 65535

Path Cost 10Gbps 2 1 to 5 1 to 65535

On each bridge, the root port is the port through which this bridge communicates with the root. It is the port on this switch with the lowest path cost to the root (the root path cost). If there is no root port, then this switch has been accepted as the root bridge of the spanning tree network.

For each LAN segment, a designated bridge is selected. This bridge has the lowest cost to the root among the bridges connected to the LAN.

5.5.2 How STP Works

After a bridge determines the lowest cost-spanning tree with STP, it enables the root port and the ports that are the designated ports for connected LANs, and disables all other ports that participate in STP. Network packets are therefore only forwarded between enabled ports, eliminating any possible network loops.

STP-aware switches exchange Bridge Protocol Data Units (BPDUs) periodically. When the bridged LAN topology changes, a new spanning tree is constructed.

Once a stable network topology has been established, all bridges listen for Hello BPDUs (Bridge Protocol Data Units) transmitted from the root bridge. If a bridge does not get a Hello BPDU after a predefined interval (Max Age), the bridge assumes that the link to the root bridge is down. This bridge then initiates negotiations with other bridges to reconfigure the network to re-establish a valid network topology.

5.5.3 STP Port States

STP assigns five port states (see next table) to eliminate packet looping. A bridge port is not allowed to go directly from blocking state to forwarding state so as to eliminate transient loops.

Table 5-3 STP Port States

PORT STATE DESCRIPTION

Disabled STP is disabled (default).

Blocking Only configuration and management BPDUs are received and processed.

Listening All BPDUs are received and processed.

General, Switch and IP Setup 5-3

Dimension ES-3024 Ethernet Switch

Table 5-3 STP Port States

PORT STATE DESCRIPTION

Learning All BPDUs are received and processed. Information frames are submitted to the learning

process but not forwarded.

Forwarding All BPDUs are received and processed. All information frames are received and forwarded.

5.6 Dynamic Link Aggregation

The ES-3024 supports the link aggregation IEEE802.3ad standard. This standard describes the Link Aggregate Control Protocol (LACP), which is a protocol that dynamically creates and manages trunk groups.

When you enable LACP link aggregation on a port, the port can automatically negotiate with the ports at the remote end of a link to establish trunk groups. LACP also allows port redundancy, that is, if an operational port fails, then one of the “standby” ports become operational without user intervention

Please note that:

 You must connect all ports point-to-point to the same Ethernet switch and configure the ports for LACP

trunking.

 LACP only works on full-duplex links.

 All ports in the same trunk group must have the same media type, speed, duplex mode and flow control

settings.

 Configure trunk groups or LACP before you connect the Ethernet switch to avoid causing network

topology loops.

5.7 802.1X Authentication

See the Port Setup chapter for more information on 802.1x authentication.

5.8 Switch Setup Screen

Click Switch Setup in the navigation panel to open the Switch Setup screen. The VLAN Setup screen changes depending on whether you choose 802.1Q VLAN Type or Port Based VLAN Type in this screen.

5-4 General, Switch and IP Setup

Dimension ES-3024 Ethernet Switch

Figure 5-2 Switch Setup

General, Switch and IP Setup 5-5

Dimension ES-3024 Ethernet Switch

Table 5-4 Switch Setup

LABEL DESCRIPTION EXAMPLE

VLAN Type Choose 802.1Q or Port Based from the drop-down list box. The VLAN Setup

screen changes depending on whether you choose 802.1Q VLAN Type or Port Based VLAN Type in this screen. See section 5.4 and the VLAN Setup chapter for more information on VLANs.

IGMP Snooping

MAC Address Learning

Aging Time Enter a time from 0 to 1700 seconds. This is how long all dynamically learned

GARP Timer: Switches join VLANs by making a declaration. A declaration is made by issuing a Join message using GARP. Declarations are withdrawn by issuing a Leave message. A Leave All message terminates all registrations. GARP timers set declaration timeout values. See the chapter on VLAN setup for more background information.

Join Timer Join Timer sets the duration of the Join Period timer for GVRP in milliseconds.

Select the checkbox to enable IGMP snooping and have group multicast traffic only forwarded to ports that are members of that group, significantly reducing multicast traffic passing through your switch. See section 5.3 for more information on IGMP snooping.

MAC address learning reduces outgoing traffic broadcasts. For MAC address learning to occur on a port, the port must be active.

MAC addresses remain in the MAC address table before they age out (and must be relearned).

Each port has a Join Period timer. The allowed Join Time range is between 100 and 65535 milliseconds; the default is 200 milliseconds. See the chapter on VLAN setup for more background information.

802.1Q

300

200 milliseconds

(default)

Leave Timer Leave Timer sets the duration of the Leave Period timer for GVRP in

milliseconds. Each port has a single Leave Period timer. Leave Time must be two times larger than Join Timer; the default is 600 milliseconds.

Leave All

Timer

Priority Queue Assignment: IEEE 802.1p defines up to 8 separate traffic types by inserting a tag into a MAC-layer frame that contains bits to define class of service. Frames without an explicit priority tag are given the default priority of the ingress port. Use the next two fields to configure the priority level-to-physical queue mapping.

The switch has 4 physical queues that you can map to the 8 priority levels. On the switch, traffic assigned to higher index queues gets through faster while traffic in lower index queues is dropped if the network is congested.

Priority Level (The following descriptions are based on the traffic types defined in the IEEE 802.1d standard (which incorporates the 802.1p).

Priority 7 Typically used for network control traffic such as router configuration messages.

Priority 6 Typically used for voice traffic that is especially sensitive to jitter (jitter is the variations in delay).

Priority 5 Typically used for video that consumes high bandwidth and is sensitive to jitter.

Leave All Timer sets the duration of the Leave All Period timer for GVRP in milliseconds. Each port has a single Leave All Period timer. Leave All Timer must be larger than Leave Timer; the default is 1000 milliseconds.

600 milliseconds

(default)

1000

milliseconds

(default)

5-6 General, Switch and IP Setup

Dimension ES-3024 Ethernet Switch

Table 5-4 Switch Setup

LABEL DESCRIPTION EXAMPLE

Priority 4

Priority 3

Priority 2 This is for “spare bandwidth”.

Priority 1

Priority 0 Typically used for best-effort traffic.

Queue

Spanning Tree Protocol: Use STP to detect and disable network loops and provide backup links between switches, bridges or routers.

Select Spanning Tree Protocol to enable STP on the switch. After configuring switch STP in this screen, you must configure STP information for each port in the Port Setup screen.

Bridge Priority Bridge priority is used in determining the root switch, root port and designated

Typically used for controlled load, latency-sensitive traffic such as SNA (Systems Network Architecture) transactions.

Typically used for “excellent effort” or better than best effort and would include important business traffic that can tolerate some delay.

This is typically used for non-critical “background” traffic such as bulk transfers that are allowed but that should not affect other applications and users.

Select from Queue 0 (for lower priority traffic) to Queue 3 (for higher priority traffic) from the dropdown list boxes to map a queue for each traffic type.

port. The switch with the highest priority (lowest numeric value) becomes the STP root switch. If all switches have the same priority, the switch with the lowest MAC address will then become the root switch. The allowed range is 0 to 65535.

32768 (default)

The lower the numeric value you assign, the higher the priority for this bridge.

Bridge Priority determines the root bridge, which in turn determines Hello Time, Max Age and Forwarding Delay.

Hello Time This is the time interval in seconds between BPDU (Bridge Protocol Data Units)

configuration message generations by the root switch. The allowed range is 1 to 10 seconds.

Max Age This is the maximum time (in seconds) a switch can wait without receiving a

BPDU before attempting to reconfigure. All switch ports (except for designated ports) should receive BPDUs at regular intervals. Any port that ages out STP information (provided in the last BPDU) becomes the designated port for the attached LAN. If it is a root port, a new root port is selected from among the switch ports attached to the network. The allowed range is 6 to 40 seconds.

Forwarding

Broadcast Storm Control

This is the maximum time (in seconds) a switch will wait before changing states.

Delay

This delay is required because every switch must receive information about topology changes before it starts to forward frames. In addition, each port needs time to listen for conflicting information that would make it return to a blocking state; otherwise, temporary data loops might result. The allowed range is 4 to 30 seconds.

Use this field to limit the number of broadcast frames that can be stored in the switch buffer or sent out from the switch. Broadcast frames that arrive when the buffer is full are discarded. Enable Broadcast Storm Control to reduce broadcast traffic coming into your network.

2 (default)

20 (default)

15 (default)

General, Switch and IP Setup 5-7

Dimension ES-3024 Ethernet Switch

Table 5-4 Switch Setup

LABEL DESCRIPTION EXAMPLE

Monitor Interval

Direction Choose to monitor broadcast packets coming into the switch (Incoming) or going

Link Aggregation Control Protocol

System

Priority

802.1x

Authentication

Click Apply to save your changes back to the switch or click Cancel to begin configuring this screen afresh.

When the Monitor Interval time period expires, each port begins counting broadcast frames allowed in its buffers anew. Select a time period from 64, 1024, 8000, 256000 microseconds from the drop-down list box.

out of the switch (Outgoing).

Select this checkbox to enable Link Aggregation Control Protocol (LACP). See the Trunk Setup chapter for more information on LACP.

LACP system priority is a number between 1 and 65,355. The switch with the lowest system priority (and lowest port number if system priority is the same) becomes the LACP “server”. The LACP “server” controls the operation of LACP setup. Enter a number to set the priority of an active port using Link Aggregate Control Protocol (LACP). The smaller the number, the higher the priority level.

Select this checkbox to permit 802.1x authentication on the switch. You must first allow 802.1x authentication on the switch before configuring it on each port.

65535

5.9 IP Setup

The switch needs an IP address for it to be managed over the network. The factory default IP address is

192.168.1.1. The subnet mask specifies the network number portion of an IP address. The factory default subnet mask is 255.255.255.0. The default gateway specifies the IP address of the default gateway (next hop) for outgoing traffic. 0.0.0.0 means no default gateway is specified.

Click IP Setup in the navigation panel to open this screen.

5-8 General, Switch and IP Setup

Dimension ES-3024 Ethernet Switch

Figure 5-3 IP Setup

Table 5-5 IP Setup

LABEL DESCRIPTION

IP Address Enter the IP address of your switch in dotted decimal notation for example 192.168.1.1.

IP Subnet Mask

Default Gateway

Domain Name Server

Click Apply to save your changes back to the switch. Click Cancel to begin configuring this screen afresh.

Enter the IP subnet mask of your switch in dotted decimal notation for example 255.255.255.0.

Enter the IP address of the default outgoing gateway in dotted decimal notation, for example

192.168.1.254.

DNS (Domain Name System) is for mapping a domain name to its corresponding IP address and vice versa. Enter a domain name server IP address in order to be able to use a domain name instead of an IP address in the Time and Date screen.

General, Switch and IP Setup 5-9

Dimension ES-3024 Ethernet Switch

Chapter 6

Port

This chapter explains how to configure individual ports on the ES-3024.

Setup

6.1 Introduction

Click Port Setup from the navigation panel to enter the port configuration summary screen. You may configure any of the 26 Ethernet ports (ports 25 and 26 are uplink ports) by clicking its index number.

Figure 6-1 Port Setup Summary Screen

Port Setup 6-1

Dimension ES-3024 Ethernet Switch

Table 6-1 Port Setup Summary Screen

LABEL DESCRIPTION

Port This is the port index number. Click a port link to configure that port.

Active

Name This field shows the name that identifies this port.

Type

Speed

Duplex

This field shows whether the port is turned on (Yes) or not (No). The factory default for all ports is disabled. A port must be enabled for data transmission to occur.

This field displays 10/100M for an Ethernet/Fast Ethernet connection and Empty if no uplink module is inserted in the slot. If an uplink module is present, then its type is displayed here.

This field displays the configured speed or Auto of the Ethernet port. Auto means the switch automatically finds the speed of the attached switch.

This field displays the Ethernet duplex mode, that is full-duplex (Full) or half-duplex (Half) or N/A when Auto is selected as the speed.

6.2 IEEE 802.1x

IEEE 802.1x is an extended authentication protocol1 that allows support of RADIUS (Remote Authentication Dial In User Service, RFC 2138, 2139) for centralized user profile and accounting server.

You must enable 802.1x on the switch (see Switch Setup screen) before enabling it on a port.

management on a network RADIUS

6.3 Configure 802.1x on a Port

Click a port link in the Port Setup summary screen to enter that port’s configuration screen.

At the time of writing, only Windows XP of the Microsoft operating systems supports it. See the Microsoft web site for

information on other Windows operating system support. For other operating systems, see its documentation. If your operating

system does not support 802.1x, then you may need to install 802.1x client software.

Not available at the time of writing.

6-2 Port Setup

Dimension ES-3024 Ethernet Switch

Figure 6-2 Port Edit Screen

Port Setup 6-3

Dimension ES-3024 Ethernet Switch

LABEL DESCRIPTION EXAMPLE

Table 6-2 Port Edit Screen

Active A port must be enabled for data transmission to occur. Select Active to

enable the port.

Name Choose a descriptive name for port identification purposes. Joe

Default 802.1P Priority

Limiting Number of Learned MAC Address

Type This read-only label displays the type of port you are currently

Speed Select the speed of the Ethernet connection on this port. Auto (auto-

This priority value is added to incoming frames without a (802.1p) priority queue tag. See Priority Queue Assignment in Table 5-4 Switch Setup for more information.

Use this field to limit the number of (dynamic) MAC addresses that may be learned on a port. For example, if you set this field to "5" on port 2, then only the devices with these five learned MAC addresses may access port 2 at any one time. A sixth device would have to wait until one of the five learned MAC addresses aged out. MAC-address aging out time can be set in the Switch Setup screen. The valid range is from “0” to “254”. “0” means this feature is disabled, so the switch will learn MAC addresses up to the global limit of 16K.

configuring.

negotiation) makes one Ethernet port able to negotiate with a peer automatically to obtain the connection speed and duplex mode that both ends support. When auto-negotiation is turned on, an Ethernet port on the switch negotiates with the peer automatically to determine the connection speed and duplex mode. If the peer Ethernet port does not support auto-negotiation or turns off this feature, the switch determines the connection speed by detecting the signal on the cable and using half duplex mode. When the switch’s auto-negotiation is turned off, an Ethernet port uses the pre-configured speed and duplex mode when making a connection, thus requiring you to make sure that the settings of the peer Ethernet port are the same in order to connect.

0 (default)

10/100M

Auto

Duplex Select a duplex mode from half duplex (Half), full duplex (Full) or

(N/A). N/A displays when auto-negotiation is turned on, as the Ethernet port on the switch negotiates with the peer automatically to determine the connection speed and duplex mode.

Flow Control A concentration of traffic on a port decreases port bandwidth and

overflows buffer memory causing packet discards and frame losses. Flow Control is used to regulate transmission of signals to match the bandwidth of the receiving port.

The ES-3024 uses IEEE802.3x flow control in full duplex mode and backpressure flow control in half duplex mode.

IEEE802.3 flow control is used in full duplex mode to send a pause signal to the sending port, causing it to temporarily stop sending signals when the receiving port memory buffers fill.

Back Pressure flow control is typically used in half duplex mode to send a "collision" signal to the sending port (mimicking a state of packet collision) causing the sending port to temporarily stop sending signals and resend later. Select Flow Control to enable it.

Full

6-4 Port Setup

Dimension ES-3024 Ethernet Switch

Table 6-2 Port Edit Screen

LABEL DESCRIPTION EXAMPLE

Spanning Tree Protocol

Priority Configure the priority for each port here. Priority decides which port

Path Cost Path cost is the cost of transmitting a frame on to a LAN through that

802.1Q VLAN: These fields are only visible if you chose 802.1Q In the VLAN Type field in the Switch Setup screen.

Default VLAN ID Default VLAN ID is the PVID, the Port VLAN ID assigned to untagged

GVRP GVRP (GARP VLAN Registration Protocol) is a registration protocol

VLAN Acceptable

Frame Type

Select Spanning Tree Protocol to enable. See section 5.5 for more information.

should be disabled when more than one port forms a loop in a switch. Ports with a higher priority numeric value are disabled first. The allowed range is between 0 and 255 and default value is 128.

port. It is assigned according to the speed of the bridge. The slower the media, the higher the cost - see Table 5-2 STP Path Costs for more information.

frames or priority-tagged frames received on this port.

that defines a way for switches to register necessary VLAN members on ports across the network. Select this check box to enable GVRP and propagate VLANs information beyond the local switch.

Choose All if you want the port to accept both tagged and untagged incoming packets (to that port). Choose Tagged if you want the port to accept just tagged incoming packets (to that port). See section 5.4 for more information on VLANs.

128 (default)

100

1(default)

All

Port Security Port security means that only packets with dynamically learned MAC

addresses and/or configured static MAC addresses can pass through this port. The switch can learn up to 16K MAC addresses in total with no limit on individual ports other than the sum cannot exceed 16K.

For maximum port security, enable Port Security, disable Mac address learning and configure static MAC address(es) for that port. It is not recommended you disable Port Security together with MAC address learning as this will result in many broadcasts.

Address Learning MAC address learning reduces outgoing broadcast traffic. For MAC

address learning to occur on a port, the port must port must have address learning active and the port itself must be active.

Active Select Active to enable MAC address learning on this port.

Port Setup 6-5

Dimension ES-3024 Ethernet Switch

LABEL DESCRIPTION EXAMPLE

Table 6-2 Port Edit Screen

Broadcast Storm Control

Threshold Select the number of frames allowed in the Threshold drop-down list

Direction Select Incoming to control how many broadcast frames the port can

Link Aggregate Control Protocol

Enable Broadcast Storm Control to reduce broadcast traffic coming into or going out of this port. Broadcast Storm Control includes multicast packets. Use the Threshold field to limit the number of broadcast frames that can be:

 Stored in a port’s buffer or

 Sent out from the port.

Broadcast frames that arrive within the monitor interval specified in the Switch Setup screen but after the buffer is full are discarded.

box. If you wish your network to receive or broadcast a lot of broadcast traffic then choose a larger number. To reduce broadcast traffic coming into or going out of your network, choose a smaller number.

store in the switch buffer and select Outgoing to control how many frames the port will send out.

The ES-3024 supports the link aggregation IEEE802.3ad standard. This standard describes the Link Aggregate Control Protocol (LACP), which is a protocol that is used to dynamically create and manage trunk groups. The standard provides link identification, status monitoring and synchronization across links.

128

incoming

Timeout Timeout is the time interval between the individual port exchanges of

LACP packets in order to check that the peer port in the trunk group is still up. If a port does not respond after three tries, then it is deemed to be “down” and is removed from the trunk. Set a short timeout (one second) for busy trunked links to ensure that disabled ports are removed from the trunk group as soon as possible.

Select either 1 second or 30 seconds.

802.1x Select this checkbox to permit 802.1x authentication on this port. You must first allow 802.1x authentication on the switch (see Switch Setup screen) before configuring it on each port.

Reauthentication Specify if a subscriber has to periodically re-enter his or her username

and password to stay connected to the port.

Reauthentication

Timer

Click Apply to save your changes back to the switch or click Cancel to begin configuring this screen afresh.

Specify how often a client has to re-enter his or her username and password to stay connected to the port.

3600

6-6 Port Setup

Advanced Applications

Part IV

Advanced Applications

This part shows you how to configure the Advanced Applications screens.

Dimension ES-3024 Ethernet Switch

Chapter 7

Static

Static routes tell the ES-3024 how to forward IP traffic when you configure the TCP/IP parameters

Route Setup

7.1 Static Route Setup

Click Static Route Setup from the navigation panel to display the following static route summary table.

manually.

Figure 7-1

Table 7-1 Static Route Setup

LABEL DESCRIPTION

Entry This field displays the index number of the route.

Active This field displays Yes when the static route is activated and No when is it deactivated.

Name This field displays the descriptive name for this route. This is for identification purpose

only.

Destination Address This field displays the IP network address of the final destination.

Subnet Mask This field displays the subnet mask for this destination.

Gateway Address This field displays the IP address of the gateway. The gateway is an immediate

neighbor of your switch that will forward the packet to the destination.

Metric This field displays the cost of transmission for routing purposes.

Static Route Setup

Static Route Setup 7-1

Dimension ES-3024 Ethernet Switch

7.2 Static Route Edit Setup

To set up a static route on the switch, click a static route index number.

Figure 7-2 Static Route Edit Setup

Table 7-2 Static Route Edit Setup

LABEL DESCRIPTION

Name Enter a descriptive name for this route. This is for identification purpose only.

Active This field allows you to activate/deactivate this static route.

Destination IP Address

IP Subnet Mask Enter the subnet mask for this destination.

Gateway IP Address

Metric The metric represents the “cost” of transmission for routing purposes. IP routing uses hop

This parameter specifies the IP network address of the final destination. Routing is always based on network number. If you need to specify a route to a single host, use a subnet mask of 255.255.255.255 in the subnet mask field to force the network number to be identical to the host ID.

Enter the IP address of the gateway. The gateway is an immediate neighbor of your switch that will forward the packet to the destination. The gateway must be a router on the same segment as your switch.

count as the measurement of cost, with a minimum of 1 for directly connected networks. Enter a number that approximates the cost for this link. The number need not be precise, but it must be between 1 and 15. In practice, 2 or 3 is usually a good number.

Click Apply to save your changes back to the switch or click Cancel to begin configuring this screen afresh.

7-2 Static Route Setup

Dimension ES-3024 Ethernet Switch

Chapter 8

VLAN

They type of screen you see here depends on the VLAN Type you selected in the Switch Setup

screen. This chapter shows you how to configure 802.1Q tagged and port-based VLANs. See the

General, Switch and IP Setup chapter for more information.

Setup

8.1 Introduction to IEEE 802.1Q Tagged VLAN

Tagged VLAN uses an explicit tag (VLAN ID) in the MAC header to identify the VLAN membership of a frame across bridges - they are not confined to the switch on which they were created. The VLANs can be created statically by hand or dynamically through GVRP. The VLAN ID associates a frame with a specific VLAN and provides the information that switches need to process the frame across the network. A tagged frame is four bytes longer than an untagged frame and contains two bytes of TPID (Tag Protocol Identifier, residing within the type/length field of the Ethernet frame) and two bytes of TCI (Tag Control Information, starts after the source address field of the Ethernet frame).

The CFI (Canonical Format Indicator) is a single-bit flag, always set to zero for Ethernet switches. If a frame received at an Ethernet port has a CFI set to 1, then that frame should not be forwarded as it is to an untagged port. The remaining twelve bits define the VLAN ID, giving a possible maximum number of 4,096 (212) VLANs. Note that user priority and VLAN ID are independent of each other. A frame with VID (VLAN Identifier) of null (0) is called a priority frame, meaning that only the priority level is significant and the default VID of the ingress port is given as the VID of the frame. Of the 4096 possible VIDs, a VID of 0 is used to identify priority frames and value 4095 (FFF) is reserved, so the maximum possible VLAN configurations are 4,094

TPID 2 Bytes

User Priority 3 Bits

CFI 1 Bit

VLAN ID 12 bits

8.1.1 Forwarding Tagged and Untagged Frames

Each port on the switch is capable of passing tagged or untagged frames. To forward a frame from an 802.1Q VLAN-aware switch to an 802.1Q VLAN-unaware switch, the switch first decides where to forward the frame and then strips off the VLAN tag. To forward a frame from an 802.1Q VLAN-unaware switch to an 802.1Q VLANaware switch, the switch first decides where to forward the frame, and then inserts a VLAN tag reflecting the ingress port's default VID. The default PVID is VLAN 1 for all ports, but this can be changed.

8.1.2 Automatic VLAN Registration

GARP and GVRP are the protocols used to automatically register VLAN membership across switches.

VLAN Setup 8-1

Dimension ES-3024 Ethernet Switch

GARP

GARP (Generic Attribute Registration Protocol) allows network switchs to register and de-register attribute values with other GARP participants within a bridged LAN. GARP is a protocol that provides a generic mechanism for protocols that serve a more specific application, for example, GVRP.

GARP Timers

Switches join VLANs by making a declaration. A declaration is made by issuing a Join message using GARP. Declarations are withdrawn by issuing a Leave message. A Leave All message terminates all registrations. GARP timers set declaration timeout values.

GVRP

GVRP (GARP VLAN Registration Protocol) is a registration protocol that defines a way for switches to register necessary VLAN members on ports across the network. Enable this function to permit VLANs groups beyond the local switch.

Please refer to the following table for common GARP terminology.

Table 8-1 GARP Terminology

VLAN

PARAMETER

VLAN Type Permanent VLAN This is a static VLAN created manually.

VLAN Administrative Control

VLAN Tag Control Tagged Ports belonging to the specified VLAN tag all outgoing frames

VLAN Port Port VID This is the VLAN ID assigned to untagged frames that this port received.

Dynamic VLAN This is a VLAN configured by a GVRP registration/deregistration

Registration Fixed Fixed registration ports are permanent VLAN members.

Registration Forbidden

Normal Registration Ports dynamically join a VLAN using GVRP.

Untagged Ports belonging to the specified don't tag all outgoing frames

TERM DESCRIPTION

process.

Ports with registration forbidden are forbidden to join the specified VLAN.

transmitted.

Acceptable frame type

Ingress filtering If set, the switch discards incoming frames for VLANs that do not have

You may choose to accept both tagged and untagged incoming frames or just tagged incoming frames on a port.

this port as a member

8-2 VLAN Setup

Dimension ES-3024 Ethernet Switch

8.2 Configuring Tagged VLANs

Select 802.1Q as the VLAN Type in the Switch Setup screen and then click VLAN Setup from the navigation panel to display the next screen.

Figure 8-1 VLAN Static Entry Setup

Table 8-2 VLAN Static Entry Setup

FIELD DESCRIPTION

GVRP GVRP (GARP VLAN Registration Protocol) is a registration protocol that defines a way for

switches to register necessary VLAN members on ports across the network. Enable this function to permit VLANs groups beyond the local switch.

Management VLAN ID

Management VLAN ID is the VLAN ID of the CPU and is used for management only. The default is "1". All ports, by default, are fixed members of this "management VLAN" in order to manage the device from any port. If a port is not a member of this VLAN, then users on that port cannot access the device. To access the device make sure the port that you are connected to is a member of Management VLAN.

VLAN Setup 8-3

Dimension ES-3024 Ethernet Switch

Table 8-2 VLAN Static Entry Setup

FIELD DESCRIPTION

Ingress Check If this check box is selected for a port, the device discards incoming frames for VLANs which do

not include this port in its member set.

Port Number The CPU port refers to the switch management port. By default it forms a VLAN with all Ethernet

ports. If it does not form a VLAN with a particular port then the switch cannot manage that port.

Ingress Select the port(s) for which you want to perform ingress checks.

VLAN ID The VLAN ID associates a frame with a specific VLAN and provides the information that switches

need to process the frame across the network. You may edit an existing VLAN group by clicking its ID number.

Name This is the descriptive name for the static VLAN for identification purposes.

Active This field displays whether this static VLAN is active or not. You can temporarily stop using a

VLAN group by deactivating it rather than deleting.

Delete To permanently stop using a VLAN group, delete it by selecting that group’s Delete check box

and then clicking Apply.

Click Add VLAN to create a new VLAN group or click Apply to save your changes back to the switch.

8.2.1 Adding/Editing a VLAN Group

To edit an existing VLAN group, click its ID number under VLAN ID in the VLAN Static Entry Setup screen (Figure 8-1). To create a new VLAN group, click Add VLAN in the VLAN Static Entry Setup screen (Figure 8-1). The configuration screen for both cases is the same (Figure 8-2).

8-4 VLAN Setup

Dimension ES-3024 Ethernet Switch

Figure 8-2 Edit VLAN Static Entry

Table 8-3 Edit VLAN Static Entry

FIELD DESCRIPTION

Active Select Active to activate this VLAN group.

Name Enter a descriptive name (up to 12 characters) for the static VLAN for identification purposes; for

example, “marketing” (without the quotes).

VLAN Group ID Enter the VLAN ID for this static entry; the valid range is between 1 and 4094.

Port Number The port number identifies the port you are configuring. Ports 25 and 26 are the uplink ports.

Normal Select Normal for the port to dynamically join this VLAN group using GVRP.

Fixed Select Fixed for the port to be a permanent member of this VLAN group.

VLAN Setup 8-5

Dimension ES-3024 Ethernet Switch

Table 8-3 Edit VLAN Static Entry

FIELD DESCRIPTION

Forbidden Select Forbidden if you want to prohibit the port from joining this VLAN group.

TX Tagging Select TX Tagging if you want the port to tag all outgoing frames transmitted with this VLAN

Group ID.

Click Apply to save your changes back to the switch or click Cancel to begin configuring this screen afresh.

8.3 Introduction to Port-based VLANs

Port-based VLANs are VLANs where the packet forwarding decision is based on the destination MAC address and its associated port.

Port-based VLANs require allowed outgoing ports to be defined for each port. Therefore, if you wish to allow two subscriber ports to talk to each other, for example, between conference rooms in a hotel, you must define the egress (an egress port is an outgoing port, that is, a port through which a data packet leaves) for both ports.

Port-based VLANs are specific only to the switch on which they were created.

The port-based VLAN setup screen is shown next. Port 0 (the CPU management port) forms a VLAN with all Ethernet ports.

8.4 Configuring Port-based VLANs

Select Port-based as the VLAN Type in the Switch Setup screen and then click VLAN Setup from the navigation panel to display the next screen.

8-6 VLAN Setup

Dimension ES-3024 Ethernet Switch

Figure 8-3 Port-based VLAN Setup

VLAN Setup 8-7

Dimension ES-3024 Ethernet Switch

Table 8-4 Port-based VLAN Setup

FIELD DESCRIPTION

Preset Value Choose from Port Isolation, All Connected or Customized.

Port Isolation means that each port (1 to 26) can only communicate with the CPU management

port and cannot communicate with each other. All incoming ports are selected while only the CPU outgoing port is selected. This option is the most limiting but also the most secure.

All Connected means all ports can communicate with each other, that is, there are no virtual LANs. All incoming and outgoing ports are selected. This option is the most flexible but also the least secure.

Select Customized to configure specific port-based VLANs (specific only to the ES-3024). Check the ports that can communicate with each other. For two ports to communicate with each other, you must define the incoming and outgoing port for both ports. For example, for (just) ports 3 and 5 to form a VLAN, select the ports as shown in Figure 8-4 Port-based VLAN Example.

Incoming These are the ingress ports; an ingress port is an incoming port, that is, a port through which a

data packet enters. If you wish to allow two subscriber ports to talk to each other, you must define the ingress port for both ports. The numbers in the top row denote the incoming port for the corresponding port listed on the left (its outgoing port). CPU refers to the switch management port. By default it forms a VLAN with all Ethernet ports. If it does not form a VLAN with a particular port then the switch cannot be managed from that port.

Outgoing These are the egress ports; an egress port is an outgoing port, that is, a port through which a

data packet leaves. If you wish to allow two subscriber ports to talk to each other, you must define the egress port for both ports. CPU refers to the switch management port. By default it forms a VLAN with all Ethernet ports. If it does not form a VLAN with a particular port then the switch cannot be managed from that port.

Click Apply to save your changes back to the switch or click Cancel to begin configuring this screen afresh.

8.4.1 Port-based VLAN Example

First select Customized as the Preset Value and then select the ports as shown for ports 3 and 5 to be in the same VLAN group.

Figure 8-4 Port-based VLAN Example

8-8 VLAN Setup

Dimension ES-3024 Ethernet Switch

Chapter 9

Static

Use these screens to configure static MAC address forwarding.

MAC Forward Setup

9.1 Introduction to Static MAC Forward Setup

A static MAC address entry is an address that has been manually entered in the MAC address learning table. Static MAC addresses do not age out. Static MAC Forward Setup means setting static MAC addresses for a port. This may reduce the need for broadcasting.

Click Static MAC Forward Setup in the navigation panel to bring up the following read-only screen.

Figure 9-1 Static MAC Forward Setup

Table 9-1 Static MAC Forward Setup

FIELD DESCRIPTION

Index Click an index number to configure a static MAC address rule for a port.

Name This field displays the descriptive name for identification purposes for this static MAC address-

forwarding rule.

Static MAC Forward Edit Setup 9-1

Dimension ES-3024 Ethernet Switch

Table 9-1 Static MAC Forward Setup

FIELD DESCRIPTION

Port This field displays the port where the MAC address shown in the next field will be forwarded.

MAC Address This field displays the MAC address that will be forwarded.

Active This field displays whether this static MAC address forwarding rule is active or not. You may

temporarily deactivate a rule without deleting it.

Add To add a new static MAC address-forwarding rule, click this button.

Delete To delete a rule, select its checkbox in the Delete column and then click this Delete button.

Cancel Click Cancel to begin configuring this screen afresh.

9.2 Configuring or Editing a Static MAC Forward Rule

Click Add to configure a new rule or click an index number to edit an existing static MAC address rule. Either way, a screen as shown next is displayed.

Figure 9-2 Configuring or Editing a Static MAC Forward Rule

Table 9-2 Configuring or Editing a Static MAC Forward Rule

FIELD DESCRIPTION

Active Make sure to select this check box to activate your rule. You may temporarily deactivate a rule

without deleting it by deselecting this check box.

Name Type descriptive name for identification purposes for this static MAC address forwarding rule.

MAC Address Type the MAC address in valid MAC address format, that is, six hexadecimal character pairs.

Static MAC addresses do not age out.

VID Type the VLAN identification number.

Port Select a port where the MAC address entered in the previous field will be automatically forwarded.

Click Apply to save your changes back to the switch or click Cancel to begin configuring this screen afresh.

9-2 Static MAC Forward Edit Setup

Dimension ES-3024 Ethernet Switch

Chapter 10

Filter

This chapter discusses static MAC address port filtering.

Setup

10.1 Introduction to Port Filtering

Port filtering means sifting traffic from one or all ports to one or all ports based on the source and/or destination MAC addresses and VLAN group.

Click Filter Setup from the navigation panel to bring up the next port filter summary screen.

Figure 10-1 Filter Setup

Table 10-1 Filter Setup

LABEL DESCRIPTION

Index This field displays the index number of the filter rule.

Name This field displays the descriptive name for this filter rule. This is for identification

purpose only.

Filter Setup 10-1

Dimension ES-3024 Ethernet Switch

Table 10-1 Filter Setup

LABEL DESCRIPTION

Active This field displays Yes when the filter rule is activated and No when is it deactivated.

Source MAC Address

Source Port This field displays the Ethernet port number from which packets are transmitted. You

Destination MAC Address

Destination Port This field displays the Ethernet port number to which packets are sent. You may

Delete To delete a rule, select its checkbox in this column and then click the Delete button.

Add To add a filter rule, click this button.

Delete To delete a rule, select its checkbox in the Delete column and then click this Delete

Cancel Click Cancel to begin configuring this screen afresh.

This field displays the source MAC address in hexadecimal format. All Entries means all MAC addresses.

may choose one port only or all ports.

This field displays the destination MAC address in hexadecimal format. All Entries means all MAC addresses.

choose one port only or all ports.

button.

10.2 Configuring or Editing a Filter Rule

Click Add to configure a new filter rule or click an index number to edit an existing filter rule. Either way, a screen as shown next is displayed.

10-2 Filter Setup

Dimension ES-3024 Ethernet Switch

Figure 10-2 Configuring or Editing a Filter Rule

Table 10-2 Configuring or Editing a Filter Rule

LABEL DESCRIPTION

Active Make sure to select this check box to activate your rule. You may temporarily

deactivate a rule without deleting it by deselecting this check box.

Name Type a descriptive name for this filter rule. This is for identification purpose only.

Source The next three fields pertain to the source MAC address and source port.

Source MAC

Address

Destination The next three fields pertain to the destination MAC address and destination port.

Type a MAC address in valid MAC address format, that is, six hexadecimal character pairs or click All Entries to apply the filter rule to all MAC addresses.

VID Type the VLAN group identification number.

Port Select the port to which the filter rule should be applied. You may choose one port only

or all ports (All Ports).

Filter Setup 10-3

Dimension ES-3024 Ethernet Switch

Table 10-2 Configuring or Editing a Filter Rule

LABEL DESCRIPTION

MAC Address Type a MAC address in valid MAC address format, that is, six hexadecimal character

pairs or click All Entries to apply the filter rule to all MAC addresses.

VID Type the VLAN group identification number.

Port Select the port to which the filter rule should be applied. You may choose one port only

or all ports (All Ports).

Click Apply to save your changes back to the switch or click Cancel to begin configuring this screen afresh.

10-4 Filter Setup

Dimension ES-3024 Ethernet Switch

Chapter 11 Mirror

This chapter discusses the Mirror setup screens.

Setup

11.1 Introduction to Port Mirroring

Port mirroring allows you to copy traffic going from one or all ports to another or all ports in order that you can examine the traffic from the mirror port (the port you copy the traffic to) without interference.

Click Mirror Setup in the navigation panel to bring up the next mirror setup summary screen.

Figure 11-1 Mirror Setup

Table 11-1 Mirror Setup

LABEL DESCRIPTION

Active Clear this check box to deactivate port mirroring on the switch.

Filter Setup 11-1

Dimension ES-3024 Ethernet Switch

Table 11-1 Mirror Setup

LABEL DESCRIPTION

Mirror Port The mirror port is the port you copy the traffic to in order to examine it in more detail

without interfering with the traffic flow on the original port(s). Select this port from this drop-down list box.

Index This field displays the index number of the mirror rule. Click the index number to edit

this mirror rule.

Name This field displays the descriptive name for this mirror rule. This is for identification

purpose only.

Active This field displays Yes when the mirror rule is activated and No when is it deactivated.

Direction This is the direction to which the rule applies, that is Incoming, Outgoing or Both.

Source MAC Address

Source Port This field displays the Ethernet port number from which packets are transmitted. You

Destination MAC Address

Destination Port This field displays the Ethernet port number to which packets are sent. You may

Delete To delete a rule, select its checkbox in this column and then click the Apply button.

Add To add a mirror rule, click this button.

Click Apply to save your changes back to the switch or click Cancel to begin configuring this screen afresh.

This field displays the source MAC address in hexadecimal format. All Entries means all MAC addresses.

may choose one port only or all ports.

This field displays the destination MAC address in hexadecimal format. All Entries means all MAC addresses.

choose one port only or all ports.

11.2 Configuring or Editing a Mirror Rule

Click Add to configure a new mirror rule or click an index number to edit an existing mirror rule. Either way, a screen as shown next is displayed.

11-2 Mirror Setup

Dimension ES-3024 Ethernet Switch

Figure 11-2 Configuring or Editing a Mirror Rule

Table 11-2 Configuring or Editing a Mirror Rule

LABEL DESCRIPTION

Active Make sure to select this check box to activate your rule. You may temporarily

deactivate a rule without deleting it by clearing this check box.

Name Type a descriptive name for this mirror rule. This is for identification purposes only.

Direction Choose the direction to which the rule applies from Incoming, Outgoing or Both.

Source The source and destination fields identify the traffic you want to copy for analysis. You

can identify source-destination traffic through a combination of MAC address, VLAN group and port. Configure these parameters in the next three fields.

MAC Address Type a MAC address in valid MAC address format, that is, six hexadecimal character

pairs or click All Entries to apply the filter rule to all MAC addresses.

VID Type the VLAN group identification number.

Port Select the port to which the filter rule should be applied. You may choose one port only

or all ports (All Ports).

Filter Setup 11-3

Dimension ES-3024 Ethernet Switch

Table 11-2 Configuring or Editing a Mirror Rule

LABEL DESCRIPTION

Destination The source and destination fields identify the traffic you want to copy for analysis. You

can identify source-destination traffic through a combination of MAC address, VLAN group and port. Configure these parameters in the next three fields.

MAC Address Type a MAC address in valid MAC address format, that is, six hexadecimal character

pairs or click All Entries to apply the filter rule to all MAC addresses.

VID Type the VLAN group identification number.

Port Select the port to which the filter rule should be applied. You may choose one port only

or all ports (All Ports).

Click Apply to save your changes back to the switch or click Cancel to begin configuring this screen afresh.

11-4 Mirror Setup

Dimension ES-3024 Ethernet Switch

Chapter 12

Bandwidth

This chapter shows you how you can cap the maximum bandwidth allowed from specific source(s) to

specified destination(s) using the Bandwidth Control setup screens.

Control Setup

12.1 Introduction to Bandwidth Control

Bandwidth control means defining a maximum allowable bandwidth for traffic flows from specified source(s) to specified destination(s). Click Bandwidth Control Setup from the navigation panel to bring up the next screen.

Figure 12-1 Bandwidth Control Setup

Table 12-1 Bandwidth Control Setup

LABEL DESCRIPTION

Index This field displays the index number of the rule. Click an index number to edit that rule.

Name This field displays the descriptive name for this rule. This is for identification purposes

only.

Active This field displays whether the bandwidth control rule is activated or not.

Bandwidth Control Setup 12-1

Dimension ES-3024 Ethernet Switch

Table 12-1 Bandwidth Control Setup

LABEL DESCRIPTION

Max. Bandwidth (kbps)

Source MAC Address

Source Port This field displays the Ethernet port number from which packets are transmitted. You

Destination MAC Address

Destination Port This field displays the Ethernet port number to which packets are sent. You may

Delete To delete a rule, select its checkbox in this column and then click the Delete button.

Add To add a rule, click this button.

Delete To delete a rule, select its checkbox in the Delete column and then click this Delete

Cancel Click Cancel to begin configuring this screen afresh.

This field displays the maximum bandwidth allowed in kilobits per second for this traffic flow.

This field displays the source MAC address in hexadecimal format. All Entries means all MAC addresses.

may choose one port only or all ports.

This field displays the destination. MAC address in hexadecimal format. All Entries means all MAC addresses.

choose one port only or all ports.

button.

12.2 Configuring or Editing a Bandwidth Control Rule

Click Add to configure a new rule or click an index number to edit an existing Bandwidth Control setup rule. Either way, a screen as shown next is displayed.

12-2 Bandwidth Control Setup

Dimension ES-3024 Ethernet Switch

Figure 12-2 Bandwidth Control Setup Edit

Table 12-2 Bandwidth Control Setup Edit

LABEL DESCRIPTION

Active Make sure to select this check box to activate your rule. You may temporarily

deactivate a rule without deleting it by clearing this check box.

Name Type a descriptive name for this bandwidth control rule. This is for identification

purpose only.

Maximum Bandwidth Type the maximum bandwidth allowed in kilobits per second for this traffic flow.

Source The next three fields pertain to the source MAC address and source port.

MAC Address Type a MAC address in valid MAC address format, that is, six hexadecimal character

pairs or click All Entries to apply the filter rule to all MAC addresses.

VID Type the VLAN group identification number.

Port Select the port to which the bandwidth control rule should apply. You may choose one

port only or all ports (All Ports).

Bandwidth Control Setup 12-3

Dimension ES-3024 Ethernet Switch

Table 12-2 Bandwidth Control Setup Edit

LABEL DESCRIPTION

Destination The next three fields pertain to the destination MAC address and destination port.

MAC Address Type a MAC address in valid MAC address format, that is, six hexadecimal character

pairs or click All Entries to apply the filter rule to all MAC addresses.

VID Type the VLAN identification number.

Port Select the port to which the bandwidth control rule should apply. You may choose one

port only or all ports (All Ports).

Click Apply to save your changes back to the switch or click Cancel to begin configuring this screen afresh.

12-4 Bandwidth Control Setup

Dimension ES-3024 Ethernet Switch

Chapter 13

Trunk

This chapter shows you how to logically aggregate physical links to form one logical, higher-bandwidth

Setup

link.

13.1 Introduction to Trunking

Trunking (link aggregation) is the grouping of physical ports into one logical higher-capacity link. You may want to trunk ports if for example, it is cheaper to use multiple lower-speed links than to under-utilize a high-speed, but more costly, single-port link.

However, the more ports you aggregate then the fewer available ports you have. You may configure up to four trunk groups in the ES-3024. A trunk group is one logical link containing multiple ports.

Ports should be physically linked in consecutive order without gaps when forming trunk groups. For example ports 9, 10, 11 and 12 in switch 1 should connect to ports 1, 2, 3 and 4 in switch 2 to form one trunk group; ports 9, 10, 11 and 12 in switch 1 connected to ports 1, 3, 2, 4 in switch 2 would form two trunk groups, not one.

Table 13-1 Trunk Groups

TRUNK GROUP BEGINNING-TO-END PORT RANGE

T1 1 to 8

T2 9 to 16

T3 17 to 24

T4 25 and 26 (the uplink ports)

See also the Switch Setup chapter for information on dynamic link aggregation using the Link Aggregation Control Protocol (LACP). The ES-3024 adheres to the 802.3ad standard for static and dynamic (LACP) port trunking.

13.2 Trunk Setup

Click Trunk Setup in the navigation panel to display the screen shown next.

Trunk Setup 13-1

Dimension ES-3024 Ethernet Switch

Figure 13-1 Trunk Setup

Table 13-2 Trunk Setup

LABEL DESCRIPTION

Trunk ID The trunk ID identifies the trunk group, that is, one logical link containing multiple ports

– see Table 13-1 Trunk Groups.

Starting Port This is the beginning port in the trunk group’s port range and is not configurable - see

Table 13-1 Trunk Groups.

Ending Port Select the end port in the port range from the drop-down list box - see Table 13-1 Trunk

Groups.

Active Make sure to select this check box to activate the trunk group. You may temporarily

deactivate a trunk group without deleting it by clearing this check box.

Click Apply to save your changes back to the switch or click Cancel to begin configuring this screen afresh.

13-2 Trunk Setup

Advanced Management

Part V

Advanced Management

This part describes the advanced management screens.

Dimension ES-3024 Ethernet Switch

Chapter 14

SNMP

This chapter discusses SNMP (Simple Network Management Protocol) for network management and

monitoring.

14.1 About SNMP

Simple Network Management Protocol is a protocol used for exchanging management information between network switches. SNMP is a member of TCP/IP protocol suite. A manager station can manage and monitor the ES-3024 through the network via SNMP version one (SNMPv1) and/or SNMP version 2c. The next figure illustrates an SNMP management operation. SNMP is only available if TCP/IP is configured.

Figure 14-1 SNMP Management Model

An SNMP managed network consists of two main components: agents and a manager.

An agent is a management software module that resides in a managed switch (the ES-3024). An agent translates the local management information from the managed switch into a form compatible with SNMP. The manager is the console through which network administrators perform network management functions. It executes applications that control and monitor managed devices.

The managed devices contain object variables/managed objects that define each piece of information to be collected about a switch. Examples of variables include such as number of packets received, node port status etc. A Management Information Base (MIB) is a collection of managed objects. SNMP allows a manager and agents to communicate for the purpose of accessing these objects.

SNMP Setup 14-1

Dimension ES-3024 Ethernet Switch

SNMP itself is a simple request/response protocol based on the manager/agent model. The manager issues a request and the agent returns responses using the following protocol operations:

Table 14-1 SNMP Commands

COMMAND DESCRIPTION

Get Allows the manager to retrieve an object variable from the agent.

GetNext Allows the manager to retrieve the next object variable from a table or list within an agent. In

SNMPv1, when a manager wants to retrieve all elements of a table from an agent, it initiates a Get operation, followed by a series of GetNext operations.

Set Allows the manager to set values for object variables within an agent.

Trap Used by the agent to inform the manager of some events.

14.2 Supported MIBs

MIBs let administrators collect statistics and monitor status and performance.

The ES-3024 supports the following MIBs:

 SNMP MIB II (RFC 1213)  RFC 1157 SNMP v1

 RFC 1493 Bridge MIBs  RFC 1643 Ethernet MIBs

 RFC 1155 SMI  RFC 2674 SNMPv2, SNMPv2c

 RFC 1757 RMON  SNMPv2, SNMPv2c or later version, compliant with RFC 2011

SNMPv2 MIB for IP, RFC 2012 SNMPv2 MIB for TCP, RFC 2013 SNMPv2 MIB for UDP

14.3 Configuring SNMP

To configure SNMP, click SNMP from the navigation panel. The “community” for Get, Set and Trap fields is simply SNMP’s terminology for password.

14-2 SNMP Setup

Dimension ES-3024 Ethernet Switch

Figure 14-2 SNMP Setup

The following table describes the SNMP configuration parameters.

Table 14-2 SNMP Setup

LABEL DESCRIPTION

Get Community Enter the get community, which is the password for the incoming Get- and GetNext- requests

from the management station.

Set Community Enter the set community, which is the password for incoming Set- requests from the

management station.

Trap: Community Enter the trap community, which is the password sent with each trap to the SNMP manager.

Trap: Destination Enter the IP addresses of up to four stations to send your SNMP traps to.

Click Apply to save your changes back to the switch or click Cancel to begin configuring this screen afresh.

14.4 SNMP Traps

The ES-3024 sends traps to an SNMP manager when an event occurs. SNMP traps supported are outlined in the following table.

Table 14-3 SNMP Traps

GENERIC TRAP SPECIFIC TRAP DESCRIPTION

0 (Cold Start) 0 This trap is sent when the ES-3024 is turned on.

1 (WarmStart) 0 This trap is sent when the ES-3024 restarts.

SNMP Setup 14-3

Dimension ES-3024 Ethernet Switch

Table 14-3 SNMP Traps

GENERIC TRAP SPECIFIC TRAP DESCRIPTION

2 (linkDown) 0 This trap is sent when the Ethernet is down.

3 (linkUp) 0 This trap is sent when the Ethernet is up.

4 (authenticationFailure)

6 (enterpriseSpecific) 1(TRAP_REBOOT) This trap is sent when the system is going to reboot. The trap

3 (TRAP_OVERHEAT) This trap is sent when the temperature exceeds the threshold

5 (TRAP_ERRLOG) This trap is sent when an error log is recorded in the system.

6 (TRAP_FANRPMLOW) This trap is sent when the fan speed falls below 4000 RPM

0 This trap is sent when an SNMP request comes from non-

authenticated hosts.

displays the reason for the reboot.

This trap is sent when the system is going to shut down. The (TRAP_SYSTEMSHUTDO WN)

(TRAP_OVERHEATOVER)

trap displays the reason for the shutdown.

of 65 degrees centigrade. For example, the following trap

shows that the current reading at Temp1 is 68 degrees

centigrade.

"Temp1 exceeds Limit (Limit = 65 degree C, Read = 68

degree C)"

This trap is sent when the temperature returns to normal.

For example, the following trap shows that the current reading

at Temp1 is 64 degrees centigrade.

"Temp1 back to Normal (Limit = 65 degree C, Read = 64

degree C)"

The trap includes the content of the error log.

(“Limit”, the minimum speed allowed). For example, the

following trap shows that the current reading at FAN 1 is 3800

RPM.

"FAN1 exceeds Limit (Limit = 4000 RPM, Read = 3800 RPM)"

(TRAP_FANRPMNORMAL)

8 (TRAP_VOLTAGELOW) This trap is sent when the voltage falls out of the tolerance

This trap is sent when the fan speed returns to normal.

For example, the following trap shows that the current reading

at FAN 1 is 5500 RPM.

"FAN1 back to Normal (Limit = 4000 RPM, Read = 5500

RPM)"

range.

For example, the following trap shows that the current reading

at the 3.3V sensor is 3.00V, the upper voltage limit is 3.36V

and the lower voltage limit is 3.10V.

"Power 3.3V exceeds Limit (Up Limit = 3.36V, Down Limit =

3.10V, Read = 3.00V)"

14-4 SNMP Setup

Dimension ES-3024 Ethernet Switch

Table 14-3 SNMP Traps

GENERIC TRAP SPECIFIC TRAP DESCRIPTION

9 (TRAP_POWENORMAL) This trap is sent when the voltage returns to normal.

For example, the following trap shows that the current reading at the 3.3V sensor is 3.20V, the upper voltage limit is 3.36V and the lower voltage limit is 3.10V.

"Power 3.3V back to Normal (Up Limit = 3.36V, Down Limit =

3.10V, Read = 3.20V)"

SNMP Setup 14-5

ZyXEL Communications ES-3024 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Copyright

ZyXEL Limited Warranty

Interference Statements and Warnings

Customer Support

Table of Contents

List of Figures

List of Charts

List of Tables

Preface

1.1.1 Hardware Features

Getting to Know the ES-3024 1-1

Hardware Installation 2-1

Hardware Connections 3-1

Introducing The Web Configurator 4-1

Click General Setup in the navigation panel to open this screen.

General, Switch and IP Setup 5-1

Click IP Setup in the navigation panel to open this screen.

Click Port Setup from the navigation panel to enter the port configuration summary screen. You may configure any of the 26 Ethernet ports (ports 25 and 26 are uplink ports) by clicking its index number.

7.1 Static Route Setup

Static Route Setup

Figure 7-2 Static Route Edit Setup

VLAN Setup 8-1

A static MAC address entry is an address that has been manually entered in the MAC address learning table. Static MAC addresses do not age out. Static MAC Forward Setup means setting static MAC addresses for a port. This may reduce the need for broadcasting.

Click Filter Setup from the navigation panel to bring up the next port filter summary screen.

Click Mirror Setup in the navigation panel to bring up the next mirror setup summary screen.

Bandwidth control means defining a maximum allowable bandwidth for traffic flows from specified source(s) to specified destination(s). Click Bandwidth Control Setup from the navigation panel to bring up the next screen.

13.2 Trunk Setup

Click Trunk Setup in the navigation panel to display the screen shown next.

SNMP