Moxa Technologies EDS-510A User Manual

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Moxa EtherDevice™ Switch

EDS-510A Series User’s Manual

www.moxa.com/product

First Edition, October 2006

Moxa Networking Co., Ltd.

Tel: +886-2-2910-1230 Fax: +886-2-2910-1231

Web:

Moxa Technical Support

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Moxa EtherDevice™ Switch

EDS-510A Series User’s Manual

The software described in this manual is furnished under a license agreement and may be used only in

accordance with the terms of that agreement.

Reproduction without permi ssi on is pr ohibited.

Trademarks

Moxa is a registered trademark of the Moxa Group.

All other trademarks or registered marks in this manual belong to their respective manufacturers.

Disclaimer

Information in this document is subject to change without notice and does not represent a commitment on the part of Moxa.

Moxa provides this document “as is,” without warranty of any kind, either expressed or implied, including, but not limited to, its particular purpose. Moxa reserves the right to make improvements and/or changes to this manual, or to the products and/or the programs described in this manual, at any time.

Information provided in this manual is intended to be accurate and reliable. However, Moxa assumes no responsibility for its use, or for any infringements on the rights of third parties that may result from its use. This product might include unintentional technical or typographical errors. Changes are periodically made to the information herein to correct such errors, and these changes are incorporated into new editions of the publication.

Table of Contents

Chapter 1 Introduction ...............................................................................................1-1

Overview.............................................................................................................................. 1-2

Package Checklist................................................................................................................. 1-2

Features ................................................................................................................................ 1-2

Industrial Networking Capability.............................................................................. 1-2

Designed for Industrial Applications.........................................................................1-2

Useful Utility and Remote Configuration ................................................................. 1-3

Recommended Software and Accessories................................................................. 1-3

Chapter 2 Getting Started ..........................................................................................2-1

RS-232 Console Configuration (115200, None, 8, 1, VT100) ............................................. 2-2

Configuration using a T e lnet Console .................................................................................. 2-5

Configuration using a Web Browser..................................................................................... 2-6

Disabling T elnet and Browser Access .................................................................................. 2-8

Chapter 3 Featured Functions...................................................................................3-1

Configuring Basic Settings................................................................................................... 3-2

System Identification................................................................................................. 3-2

Password ................................................................................................................... 3-3

Accessible IP............................................................................................................. 3-4

Port............................................................................................................................ 3-5

Network..................................................................................................................... 3-6

Time.......................................................................................................................... 3-8

Turbo Ring DIP Switch............................................................................................. 3-9

System File Update—By Remote TFTP................................................................. 3-11

System File Update—By Local Import/Export ....................................................... 3-12

System File Update—By Backup Media ................................................................ 3-12

Restart ..................................................................................................................... 3-13

Factory Default........................................................................................................ 3-13

Using Port Trunking........................................................................................................... 3-13

The Port Trunking Concept..................................................................................... 3-14

Configuring Port Trunking...................................................................................... 3-15

Configuring SNMP............................................................................................................. 3-16

SNMP Read/Write Settings..................................................................................... 3-17

Trap Settings ........................................................................................................... 3-18

Private MIB information......................................................................................... 3-19

Using Communication Redundancy................................................................................... 3-19

Gigabit Ethernet Redundant Ring Capability (< 300 ms) ....................................... 3-19

The Turbo Ring Concept......................................................................................... 3-20

Configuring Turbo Ring.......................................................................................... 3-23

The STP/RSTP Concept.......................................................................................... 3-24

Configuring STP/RSTP........................................................................................... 3-29

Using Traffic Prioritization................................................................................................. 3-32

The Traffic Prioritization Concept.......................................................................... 3-32

Configuring Traffic Prioritization........................................................................... 3-34

Using Virtual LAN............................................................................................................. 3-37

The Virtual LAN (VLAN) Concept........................................................................ 3-37

Sample Applications of VLANs using Moxa EDS-510A....................................... 3-39

Configuring Virtual LAN........................................................................................ 3-40

Using Multicast Filtering.................................................................................................... 3-43

The Concept of Multicast Filtering......................................................................... 3-43

Configuring IGMP Snooping.................................................................................. 3-46

Add Static Multicast MAC...................................................................................... 3-47

Configuring GMRP................................................................................................. 3-48

GMRP Table ........................................................................................................... 3-48

Using Bandwidth Management.......................................................................................... 3-48

Traffic Rate Limiting Settings................................................................................. 3-49

Using Port Access Control.................................................................................................. 3-49

Configuring Static Port Lock .................................................................................. 3-51

Configuring IEEE 802.1X....................................................................................... 3-51

Using Auto Warning........................................................................................................... 3-54

Configuring Email Warning.................................................................................... 3-54

Event Type.............................................................................................................. 3-55

Email Setup............................................................................................................. 3-56

Configuring Relay Warning.................................................................................... 3-57

Event Setup ............................................................................................................. 3-57

Warning List............................................................................................................ 3-59

Using Line-Swap-Fast-Recovery........................................................................................ 3-59

Configuring Line-Swap Fast Recovery................................................................... 3-59

Using Set Device IP............................................................................................................ 3-59

Configuring Set Device IP ...................................................................................... 3-60

Using Diagnosis.................................................................................................................. 3-61

Mirror Port .............................................................................................................. 3-61

Ping ......................................................................................................................... 3-62

Using Monitor .................................................................................................................... 3-62

Monitor by Switch................................................................................................... 3-62

Monitor by Port....................................................................................................... 3-63

Using the MAC Address Table........................................................................................... 3-63

Using Event Log................................................................................................................. 3-64

Using Syslog....................................................................................................................... 3-65

Using HTTPS/SSL ............................................................................................................. 3-65

Chapter 4 EDS Configurator GUI...............................................................................4-1

Starting EDS Configurator ................................................................................................... 4-2

Broadcast Search.................................................................................................................. 4-2

Search by IP address............................................................................................................. 4-3

Upgrade Firmware................................................................................................................ 4-4

Modify IP Address................................................................................................................ 4-4

Export Configuration............................................................................................................ 4-5

Import Configuration............................................................................................................ 4-6

Unlock Server....................................................................................................................... 4-7

Appendix A MIB Groups...............................................................................................A-1

Appendix B Specifications...........................................................................................B-1

Appendix C Service Information..................................................................................C-1

Moxa Internet Services.........................................................................................................C-2

Problem Report Form...........................................................................................................C-3

Product Return Procedure.....................................................................................................C-4

Chapter 1 Introduction

Welcome to Moxa EtherDevice Switch EDS-510A Series, the Gigabit Managed Redundant Ethernet Switch designed specially for connecting Ethernet-enabled devices in industrial field applications.

The following topics are covered in this chapter:

 Overview  Package Checklist  Features

EDS-510A Series User’s Manual Introduction

Overview

As the world’s network and information technology becomes more mature, the trend is to use Ethernet as the major communications interface in many industrial communications and automation applications. In fact, a whole new industry has sprung up to provide Ethernet products that comply with the requirements of demanding industrial applications.

The EDS-510A comes equipped with 3 gigabit Ethernet ports. Two of the ports can be used for building a redundant Gigabit ring called Gigabit Turbo Ring, which gives system maintainers a convenient means of setting up a versatile yet stable Gigabit Ethernet network. With Gigabit Turbo Ring, if any segment of the network gets disconnected, your automation system will be back to normal in under 300 ms. The third Gigabit Ethernet port can be a uplink port, which can give 1000 Mbps link capability for transmitting all of the data to the control center. By providing this third Gigabit Ethernet port, the EDS-510A can help the user build a complete Gigabit Ethernet backbone network.

Package Checklist

The EDS-510A is shipped with the following items. If any of these items are missing or damaged, please contact your customer service representative for assistance.

y 1 Moxa EtherDevice Switch EDS-510A y Hardware Installation Guide y CD-ROM with User’s Manual and Windows Utility y Moxa Product Warranty statement y RJ45 to DB9 console port cable y Protective caps for unused ports y DIN-Rail mounting kit (attached to the EDS-510A’s rear panel by default)

Features

Industrial Networking Capability

y 2 gigabit Ethernet ports for Redundant Gigabit Ethernet Ring (recovery time < 300 ms at full

load) and RSTP/STP (IEEE802.1W/D), plus 1 gigabit Ethernet port for uplinking

y IGMP Snooping and GMRP for filtering multicast traffic from industrial Ethernet protocols y Supports IEEE 802.1Q, tag-based VLAN, GVRP, and port-based VLAN to make network

planning easier

y Supports QoS—IEEE 802.1p/1Q and TOS/DiffServ to increase determinis m y Supports 802.3ad, LACP for optimum bandwidth utilization

y Supports IEEE 802.1X and SSL to enhance network security y SNMP V1/V2c/V3 for different levels of network management security y RMON for efficient network monitoring and proactive capability

Designed for Industrial Applications

y Bandwidth management prevents unpredictable network status y Support ABC-01 (Automatic Backup Configurator) for system configuration backup y Long-haul transmission distance of 40 km or 80 km (with optional mini-GBIC) y Redundant, dual 12 to 45 VDC power inputs y IP30, rugged high-strength metal case y DIN-Rail or panel mounting ability

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EDS-510A Series User’s Manual Introduction

y Bandwidth management to prevent unpredictable network status y Lock port for allowing access to authorized MAC addresses only y Port mirroring for online debugging y Automatic warning by exception through email, relay output y Digital inputs to integrate a sensor and alarm with an IP network y Automatic recovery of connected device IP addresses y Line-swap fast recovery

Useful Utility and Remote Configuration

y Configurable using a Web browser, Telnet/Serial console, or Windows utility y Send ping commands to identify network segment integrity

Recommended Software and Accessories

y SFP-1GSXLC:

Small form factor pluggable transceiver with 1000BaseSX, LC, 0.5 km, 0 to 60°C

y SFP-1GSXLC-T:

Small form factor pluggable transceiver with 1000BaseSX, LC, 0.5 km, -40 to 75°C

y SFP-1GLXLC:

Small form factor pluggable transceiver with 1000BaseLX, LC, 10 km, 0 to 60°C

y SFP-1GLXLC-T:

Small form factor pluggable transceiver with 1000BaseLX, LC, 10 km, -40 to 75°C

y SFP-1GLHXLC:

Small form factor pluggable transceiver with 1000BaseLHX, LC, 40 km, 0 to 60°C

y SFP-1GLHXLC-T:

Small form factor pluggable transceiver with 1000BaseLHX, LC, 40 km, -40 to 75°C

y SFP-1GZXLC:

Small form factor pluggable transceiver with 1000BaseZX, 80 km, LC, 0 to 60°C

y ABC-01: Automatic Backup Configurator via RS-232 console port, 0 to 60°C y DR-4524: 45W/2A DIN-Rail 24 VDC power supply with 85 to 264 VAC input y DR-75-24: 75W/3.2A DIN-Rail 24 VDC power supply with 85 to 264 VAC input y DR-120-24: 120W/5A DIN-Rail 24 VDC power supply w ith 88 to 132 VAC/176 to 264 VAC

input by switch

y EDS-SNMP OPC Server Pro: CD with EDS-SNMP OPC Server software and manua l y WK-46—Wall Mounting Kit

1-3

Chapter 2 Getting Started

This chapter explains how to access the EDS-510A for the first time. There are three ways to access the switch: serial console, Telnet console, and web browser. The serial console connection method, which requires using a short serial cable to connect the EDS-510A to a PC’s COM port, can be used if you do not know the EDS-510A’s IP address. The Telnet cons ole a n d web browser connection methods can be used to access the EDS-510A over an Ethernet LAN, or over the Internet.

The following topics are covered in this chapter:

 RS-232 Console Configuration (115200, None, 8, 1, VT100)  Configuration using a Telnet Console  Configuration using a Web Browser  Disabling Telnet and Browser Access

EDS-510A Series User’s Manual Getting Started

RS-232 Console Configuration (115200, None, 8, 1, VT100)

NOTE

Connection Caution!

1. You cannot connect to the EDS-510A simultaneously by serial console and Telnet.

2. You can connect to the EDS-510A simultaneously by web browser and serial console, or by

web browser and Telnet. However, we strongly suggest that you do NOT use more than one connection method at the same time. Following this advice will allow you to maintain better control over the configuration of your EDS-510A.

We recommend using Moxa PComm Terminal Emulator, which can be downloaded free of charge from Moxa’s website.

Before running PComm Terminal Emulator, use an RJ45 to DB9-F (or RJ45 to DB25-F) cable to connect the EDS-510A’s RS-232 console port to your PC’s COM por t (gener ally COM1 or CO M2, depending on how your system is set up).

After installing PComm Terminal Emulator, perform the following steps to access the RS-232 console utility.

1. From the Windows desktop, click Start Æ Programs Æ PCommLite2.5 Æ Terminal

Emulator.

2. Select Open under Port Manager to open a new connection.

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EDS-510A Series User’s Manual Getting Started

3. The Communication Parameter page of the Property window opens. Select the appropriate

COM port for Console Connection, 115200 for Baud Rate, 8 for Data Bits, None for Parity, and 1 for Stop Bits.

4. Click the Terminal tab, and select VT100 for Terminal Type. Click OK to continue.

5. Type 1 to select ansi/VT100 terminal type, and then press Enter.

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EDS-510A Series User’s Manual Getting Started

6. The Console login screen will appear. Press Enter to open the Account pop-up selector and

then select either admin or user. Use the keyboard’s down arrow to move the cursor to the Password field, enter the Console Password (this is the same as the Web Browser password; leave the Password field blank if a console password has not been set), and then press Enter.

7. The EDS-510A’s Main Menu will be displayed. (NOTE: To modify the appearance of the

PComm Terminal Emulator window, select Font… under the Edit menu, and then choose the desired formatting options.)

8. After entering the Main Menu, use the following keys to move the cursor, and to select

options.

Key Function

Up/Down/Left/Right arrows, or Tab Move the onscreen cursor Enter Display & select options Space Toggle options Esc Previous Menu

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EDS-510A Series User’s Manual Getting Started

Configuration using a Telnet Console

You may use Telnet to access the EDS-510A’s console utility over a network. To be able to access the EDS’s functions over the network (by Telnet or web browser) from a PC host that is connected to the same LAN as the EDS-510A, you need to make sure that the PC host and the EDS-510A are on the same logical subnet. To do this, check your PC host’s IP address and subnet mask. By default, the EDS-510A’s IP address is 192.168.127.253 and the EDS-510A’s subnet mask is

255.255.255.0 (for a Class C network). If you do not change these values, and your PC host’s subnet mask is 255.255.0.0, then its IP address must have the form 192.168.xxx.xxx. On the other hand, if your PC host’s subnet mask is 255.255.255.0, then its IP address must hav e the form

192.168.127.xxx.

NOTE

To use the EDS-510A’s management and monitoring functions from a PC host connected to the same LAN as the EDS-510A, you must make sure that the PC host and the EDS-510A are connected to the same logical subnet.

Before accessing the console utility via Telnet, first connect one of the EDS-510A’s RJ45 Ethernet ports to your Ethernet LAN, or directly to your PC’s Ethernet card (NIC). You can us e either a straight-through or cross-over Ethernet cable.

The EDS-510A’s default IP address is 192.168.127.253.

Perform the following steps to access the console utility via Telnet.

1. Click Start Æ Run, and then telnet to the EDS-510A’s IP address from the Windows Run

window. (You may also issue the telnet command from the MS-DOS prompt.)

2. Type 1 to choose ansi/vt100, and then press Enter.

3. The Console login screen will appear. Press Enter to open the Account pop-up selector and

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EDS-510A Series User’s Manual Getting Started

4. When the Main Menu of the EDS-510A’s console utility opens, click Terminal Æ

preferences… from the menu at the top of the window.

5. When the Terminal Preferences window opens, make sure that the VT100 Arrows option is

selected.

NOTE

The Telnet Console looks and operates in precisely the same manner as the RS-232 Console.

Configuration using a Web Browser

The EDS-510A’s web browser interface provides a convenient way to modify the switch’s configuration and access the built-in monitoring and network administration functions. You may use either Internet Explorer or Netscape to access the EDS-510A.

NOTE

To use the EDS-510A’s management and monitoring functions from a PC host connected to the same LAN as the EDS-510A, you must make sure that the PC host and the EDS-510A are on the same logical subnet.

If the EDS-510A is configured for other VLAN settings, you must make sure your PC host is on the management VLAN.

Before accessing the EDS-510A’s web browser interface, first connect one of the switch’s RJ45 Ethernet ports to your Ethernet LAN, or connect directly to your PC’s Ethernet card (NIC). You can establish a connection using either a straight-through or cross-over Ethernet cable.

NOTE

The EDS-510A’s default IP is 192.168.127.253.

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EDS-510A Series User’s Manual Getting Started

Perform the following steps to access the EDS-510A’s web browser interface.

1. Open Internet Explorer and type EDS-510A’s IP address in the Address field. Press Enter to

establish the connection.

2. The web login page will open. Select the login account (Admin or User) and enter the

Password (this is the same as the Console password), and then click Login to continue. Leave the Password field blank if a password has not been set.

NOTE

By default, the EDS-510A’s password is not set (i.e., is blank).

You may need to wait a few moments for the web page to be downloaded to your computer. Use the menu tree on the left side of the window to open the function pages to access each of the switch’s functions.

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EDS-510A Series User’s Manual Getting Started

Disabling Telnet and Browser Access

If you are connecting the EDS-510A to a public netw ork, but do not intend to use its management functions over the network, we suggest using the RS-232 console’s Basic Settings Æ System Info page to disable both Telnet Console and Web Configuration, as shown in the following figure.

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Chapter 3 Featured Functions

In this chapter, we explain how to access the EDS-510A’s c onfiguration options, perform monitoring, and use administration functions. There are three ways to access these functions: RS-232 console, Telnet console, and web browser. The serial console connection method, which requires using a short serial cable to connect the EDS-510A to a PC’s COM port, can be used if you do not know the EDS-510A’s IP address. The Telnet console and web browser connection methods can be used to access the EDS-510A over an Ethernet LAN, or over the Internet.

The web console is the most user-friendly way to configure the EDS-510A. In this chapter, we use the web console interface to introduce the functions. There are only a few differences between the web console, serial console, and Telnet console.

The following topics are covered in this chapter:

 Configuring Basic Settings  Using Port Trunking  Configuring SNMP  Using Communication Redundancy  Using Traffic Prioritization  Using Virtual LAN  Using Multicast Filtering  Using Bandwidth Management  Using Port Access Control  Using Auto Warning  Using Line-Swap-Fast-Recovery  Using Set Device IP  Using Diagnosis  Using Monitor  Using the MAC Address Table  Using Event Log  Using Syslog  Using HTTPS/SSL

EDS-510A Series User’s Manual Featured Functions

Configuring Basic Settings

The Basic Settings group includes the most commonly used settings required by administrators to maintain and control EDS-510A.

System Identification

The system identification items are displayed at the top of the web page, and will be included in alarm emails. Entering the system identification information makes it easier to identify the different switches connected to your network.

Switch Name

Setting Description Factory Default

Max. 30 Characters

This option is useful for specifying the role or application of different EDS-510A units. E.g., Factory Switch 1.

Managed Redundant Switch [Serial No. of this switch]

Switch Location

Setting Description Factory Default

Max. 80 Characters

Switch Description

Setting Description Factory Default

Max. 30 Characters

Maintainer Contact Info

Setting Description Factory Default

Max. 30 Characters

To specify the location of different EDS-510A units. E.g., production line 1.

Use this to enter a more detailed description of the EDS-510A unit.

To provide information about whom to contact in order to resolve problems. Use this to enter contact information of the person responsible for maintaining this EDS-510A.

Switch Location

None

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EDS-510A Series User’s Manual Featured Functions

Password

The EDS-510A provides two levels of access privilege: admin privilege gives read/write access to all EDS-510A configuration parameters, and user privilege provides read access only. You will be able to view the configuration, but will not be able to make modifications.

ATTENTION

The EDS-510A’s default Password is not set (i.e., is blank). If a Password is already set, then you will be required to type the Password when logging into the RS-232 console, Telnet console, or web browser interface.

Account

Setting Description Factory Default

admin “admin” privilege allows the user to modify all

EDS-510A configurations.

user “user” privilege only allows viewing EDS-510A

configurations.

Password

Setting Description Factory Default

Old Password (Max. 16 Characters)

New Password (Max. 16 Characters)

Retype Password (Max. 16 Characters)

Type current password when changing the password

Type new password when changing the password None

If you type a new password in the Password field, you will be required to retype the password in the Retype new password field before up dati n g t he new password.

admin

None

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EDS-510A Series User’s Manual Featured Functions

Accessible IP

The EDS-510A uses an IP address-based filtering method to control access to the EDS-510A units.

Accessible IP Settings allows you to add or remove “Legal” remote host IP addresses to prevent unauthorized access. Access to the EDS-510A is controlled by IP address. If a host’s IP address is in the accessible IP table, then the host will be allowed access to the EDS-510A. You can allow one of the following cases by setting this parameter:

y Only one host with the specified IP address can access the EDS-510A

E.g., enter “192.168.1.1/255.255.255.255” to allow access to just the IP address 192.168.1.1.

y Any host on a specific subnetwork can access the EDS-510A

E.g., enter “192.168.1.0/255.255.255.0” to allow access to all IPs on the subnet defined by this IP address/subnet mask combination.

y Any host can access the EDS-510A

Disable this function by deselecting the Enable the accessible IP list option. The following table shows additional configuration examples:

Allowable Hosts Input format

Any host Disable

192.168.1.120 192.168.1.120 / 255.255.255.255

192.168.1.1 to 192.168.1.254 192.168.1.0 / 255.255.255.0

192.168.0.1 to 192.168.255.254 192.168.0.0 / 255.255.0.0

192.168.1.1 to 192.168.1.126 192.168.1.0 / 255.255.255.128

192.168.1.129 to 192.168.1.254 192.168.1.128 / 255.255.255.128

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EDS-510A Series User’s Manual Featured Functions

Port

Port settings are included to give the user control over Port Access, Port Transmission Speed, Flow Control, and Port Type (MDI or MDIX). An explanation of each configuration item follows:

Enable

Setting Description Factory Defau l t

checked Allows data transmission through the port. unchecked Immediately shuts off port access.

ATTENTION

If a connected device or sub-network is wreaking havoc on the rest of the network, the Disable option under Advanced Settings/Port gives the administrator a quick way to shut off access through this port immediately.

Description

Setting Description Factory Defau l t

Media type Displays the media type for each module’s port N/A

Name

Setting Description Factory Defau l t

Max. 63 Characters Specify an alias for each port, and assist the

administrator in remembering important information about the port. E.g., PLC 1

enabled

None

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EDS-510A Series User’s Manual Featured Functions

Speed

Setting Description Factory Defau l t

Auto Allows the port to use the IEEE 802.3u protocol

to negotiate with connected devices. The port and connected devices will determine the best speed

for that connection. 100M-Full 100M-Half 10M-Full 10M-Half

FDX Flow Ctrl

This setting enables or disables the flow control capability of this port when the “port transmission speed” setting is in “auto” mode. The final result will be determined by the “auto” process between the EDS-510A and connected devices.

Setting Description Factory Defau l t

Enable Enables flow control for this port when in

Disable Disables flow control for this port when in

Choose one of these fixed speed options if the

opposing Ethernet device has trouble

auto-negotiating line speed.

auto-negotiate mode.

Auto

Disable

Network

MDI/MDIX

Setting Description Factory Defau l t

Auto Allows the port to auto detect the port type of the

opposing Ethernet device and change the port

type accordingly. MDI

MDIX

The Network configuration allows users to modify the usual TCP/IP network parameters. An explanation of each configuration item follows.

Choose the MDI or MDIX option if the opposing

Ethernet device has trouble auto-negotiating port

type.

Auto

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EDS-510A Series User’s Manual Featured Functions

Auto IP Configuration

Setting Description Factory Default

Disable Set up the EDS-510A’s IP address manually. By DHCP The EDS-510A’s IP address will be assigned

automatically by the network’s DHCP server.

By BOOTP The EDS-510A’s IP address will be assigned

automatically by the network’s BOOTP server.

Switch IP Address

Setting Description Factory Default

IP Address of the EDS-510A

Switch Subnet Mask

Setting Description Factory Default

Subnet mask of the EDS-510A

Default Gateway

Setting Description Factory Default

Default Gateway of the EDS-510A

Identifies the EDS-510A on a TCP/IP network. 192.168.127.253

Identifies the type of network to which the EDS-510A is connected (e.g., 255.255.0.0 for a Class B network, or 255.255.255.0 for a Class C network).

The IP address of the router that connects the LAN to an outside network.

Disable

255.255.255.0

None

DNS IP Address

Setting Description Factory Default

1st DNS Server’s IP Address

2nd DNS Server’s IP Address

The IP address of the DNS Server used by your network. After entering the DNS Server’s IP address, you can input the EDS-510A’s URL

www.eds.company.com) in your

(e.g., browser’s address field, instead of entering the IP address.

The IP address of the DNS Server used by your network. The EDS-510A will try to locate the 2nd DNS Server if the 1st DNS Server fails to connect.

None

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EDS-510A Series User’s Manual Featured Functions

Time

The EDS-510A has a time calibration function based on information from an NTP server or user specified Time and Date information. Functions such as Auto warning “Email” can add real-time information to the message.

NOTE

The EDS-510A does not have a real time clock. The user must update the Current Time and Current Date to set the initial time for the EDS-510A after each reboot, especially when the network does not have an Internet connection for an NTP server or there is no NTP server on the LAN.

Current Time

Setting Description Factory Default

User adjustable time. The time parameter allows configuration of the

local time in local 24-hour format.

Current Date

Setting Description Factory Default

User adjustable date. The date parameter allows configuration of the

local date in yyyy/mm/dd format.

System Up Time

Indicates the EDS-510A’s up time from the last cold start. The unit is seconds.

Time Zone

Setting Description Factory Default

User selectable time zone The time zone setting allows conversion from

GMT (Greenwich Mean Time) to local time.

None (hh:mm:ss)

None

(yyyy/mm/dd)

GMT (Greenwich Mean Time)

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EDS-510A Series User’s Manual Featured Functions

NOTE

Changing the time zone will automatically correct the current time. You should configure the time zone before setting the time.

Time Server IP/Name

Setting Description Factory Default

1st Time Server IP/Name IP or Domain address (e.g., 192.168.1.1 or

2nd Time Server IP/Name

Time Server Query Period

Setting Description Factory Default

Query Period This parameter determines how frequently the

Turbo Ring DIP Switch

The EDS-510A series switches are plug-and-play, managed, redundant Ethernet switches. The proprietary Turbo Ring protocol was developed by Moxa to provide better network reliability and faster recovery time. Moxa Turbo Ring’s recovery time is less than 300 ms—compared to a 3 to 5-minute recovery time for commercial switches—decreasing the possible loss caused by network failure.

A set of DIP Switches located on the EDS-510A’s outer casing can be easily used to configure the Turbo Ring settings in only a few seconds. Some users may wish to disable the Turbo Ring DIP Switches to avoid accidental changes to the configuration. To disable the DIP Switches, start the user interface, and then click on Turbo Ring DIP Switch under Basic Settings. Next, select the checkmark from the Disable the Turbo Ring DIP Switch checkbox.

time.stdtime.gov.tw or time.nist.gov). The EDS-510A will try to locate the 2nd NTP

Server if the 1st NTP Server fails to connect.

time is updated from the NTP server.

None

600 seconds

Setting Description Factory Default

Enable the Turbo Ring DIP Switch

Disable the Turbo Ring DIP Switch

Unselect the “Disable the Turbo Ring DIP Switch” option to enable the entire set of Hardware DIP switches.

Select the “Disable the Turbo Ring DIP Switch” option to disable the entire set of Hardware DIP switches.

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EDS-510A Series User’s Manual Featured Functions

EDS-510A Series DIP Switches

------

MASTER

COUPLER

TURBO RING

explains the effect of setting the DIP Switch to the ON position.

DIP Switch Setting Description

The default setting for each DIP Switch is OFF. The following table

------

Serves no function (reserved for future use). Enables the EDS-510A to be the Ring Master in a Turbo Ring

topology, and enables the Turbo Ring break warning. If the EDS-510A is the Master of this Turbo Ring, and the Turbo Ring is broken, the relay will form an open circuit.

Disables the EDS-510A from being the Ring Master in a Turbo Ring topology, and disables the Turbo Ring break warning.

Enables the Turbo Ring coupling function. Uses ports 7 and G1 of the EDS-510A to form the Ring Coupler path.

MASTER

COUPLER

OFF

OFF Disables the Turbo Ring coupling function.

Enables plug-and-play Turbo Ring redundancy. Ports G2 and G3 of the EDS-510A are used to form a Turbo Ring.

TURBO RING

OFF Disables plug-and-play Turbo Ring redundancy function.

DIP Switch Hardware Configuration

DIP Switch

Turbo Ring DIP

Switch

Description

ON y Turbo Ring Ports

EDS-510A: ports G2 & G3

y Coupling Ports

EDS-510A: ports 7 & G1

Enable

y Automatically adds the Turbo Ring and Ring Coupling

ports to the VLANs that you already specified using the web interface.

OFF The DIP Switch for Coupler and Master will not take

effect; you can also set up the Turbo Ring by software.

Disable

OFF

The DIP Switch for Coupler and Master will not take effect; you can also set up the Turbo Ring by software.

NOTE

To switch on the Master or Coupler functions of the DIP switch, you must enable the Turbo Ring DIP Switch first.

If you do not enable any of the EDS-510A switches to be the Ring Master, the Turbo Ring protocol will automatically choose the EDS-510A with the smallest MAC address range to be the Ring Master. If you accidentally enable more than one EDS-510A to be the Ring Master, these EDS-510A switches will auto-negotiate to determine which one will be the Ring Master.

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NOTE

The Turbo Ring Ports and Coupling Ports will be added to all VLANs if you enable the “Turbo Ring DIP Switch” and set Turbo Ring DIP Switch from OFF to ON.

If you enable the Hardware DIP Switch for Turbo Ring and set the Turbo Ring DIP Switch from ON to OFF, then the Ring Ports and Coupling Ports which are added to all VLANs are restored to their previous software settings. (For details on how to do this, please refer to “Using Virtual LAN.”)

System File Update—By Remote TFTP

The EDS-510A supports saving your configuration file to a remote TFTP server or local host to allow other EDS-510A switches to use the same configuration at a later time, or saving the Log file for future reference. Loading pre-saved firmware or a configuration file from the TFTP server or local host is also supported for easy upgrading or confi gurat i o n of the EDS -5 10A .

TFTP Server IP/Name

Setting Description Factory Default

IP Address of TFTP Server

Configuration Files Path and Name

Setting Description Factory Default

Max. 40 Characters The path and file name of the EDS-510A’s

Firmware Files Path and Name

Setting Description Factory Default

Max. 40 Characters The path and file name of the EDS-510A’s

Log Files Path and Name

Setting Description Factory Default

Max. 40 Characters The path and file name of the EDS-510A’s log file None

The IP or name of the remote TFTP server. Must be set up before downloading or uploading file s.

configuration file in the TFTP server.

firmware file.

None

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After setting up the desired path and file name, click Activate to save the setting, and then click Download to download the prepared file from the remote TFTP server, or click Upload to upload

the desired file to the remote TFTP server.

System File Update—By Local Import/Export

Configuration File

To export the configuration file of this EDS-510A, click Export to save it to the local host.

Log File

To export the Log file of this EDS-510A, click Export and save it to the local host.

NOTE

Some operating systems will open the configuration file and log file directly in the web page. In such cases, right click Export to save as a file.

Upgrade Firmware

To import the firmware file of this EDS-510A, click Browse to select the firmware file already saved on your computer. The upgrade procedure will pro ceed automatically after clicking Import.

Upload Configuration Data

To import the configuration file of this EDS-510A, click Browse to select the configuration file already saved on your computer. The upgrade procedure will proceed automatically after clicking Import.

System File Update—By Backup Media

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Auto load system configurations when system boots up

Setting Description Factory Default

Enable

Disable

Save the current configurations to ABC

To export the current configuration file of the EDS-510A, click on Save to save it to the ABC.

Load the ABC’s configurations to the Switch

To import the configuration file of the EDS-510A, click on Load to load it to the Switch.

Enables Auto load system configurations when system boots up

Disables Auto load system configurations when system boots up

Enable

Restart

Click “Activate” to reboot the EDS-510A.

Factory Default

The Factory Default function is included to give users a quick way of restoring EDS-510A’s configuration settings to their factory default values. This function is available in the Conso le utility (serial or Telnet), and Web Browser interface.

NOTE

After activating the Factory Default function, you will need to use the default network settings to re-establish a web-browser or Telnet connection with your EDS-510A.

Using Port Trunking

Link Aggregation allows one or more links to be aggregated together to form a Link Aggregation Group. A MAC client can treat Link Aggregation Groups as if they were a single link.

The EDS-510A’s Port Trunking feature allows devices to communicate by aggregating up to 4 trunk groups, with a maximum of 8 ports for each group (due to the interface limitation, there is a limit of 3 gigabit ports or 7 10/100 Mbps ports for each Trk trunk group). If one of the 8 ports fails,

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the other seven ports will provide back up and share the traffic automatically. Port trunking can be used to combine up to 8 ports between two EDS-510A switches. If all ports

on both switch units are configured as 100BaseTX and they are operating in full duplex, the potential bandwidth of the connection will be 800 Mbps.

The Port Trunking Concept

Moxa has developed a proprietary Port Trunking protocol that provides the following benefits:

y Gives you more flexibility in setting up your network connections, since the bandwidth of a

link can be doubled, tripled, or qua dr u pl e d.

y Provides redundancy—if one link is broken, the remaining trunked ports share the traffic

within this trunk group.

y Load sharing—MAC Client traffic may be distributed across multiple links. y To avoid broadcast storms or loops in your network while configuring a trunk, first disable or

disconnect all ports that you want to add to the trunk or remove from the trunk. After you finish configuring the trunk, enable or re-connect the ports.

If all ports on both switch units are configured as 100BaseTX and they are operating in full duplex, the potential bandwidth of the connection will be up to 800 Mbps on the EDS-510A. This means that users can connect one EDS to another EDS by Port Trunking to double, triple, or quadruple the bandwidth of the connection.

When configuring Port Trunking, note that Each EDS-510A can set a maximum of 4 Port Trunking groups (designated Trk1, Trk2, Trk3, Trk4)

When you activate Port Trunking settings, some advanced functions that you set up with the original ports will either be set to factory default values, or disabled:

y Communication Redundancy will be set to the factory default y Traffic Prioritization will be set to the factory default y Port-based VLAN or 802.1Q VLAN will be set to the factory default y Multicast Filtering will be set to the factory default y Rate Limiting will be set to the factory default y Port Access Control will be set to the factory default y Email and Relay Warning will be set to the factory default y Set Device IP will be set to the factory default y Mirror Port will be set to the factory default

You can setup these features again on your Trunking Port.

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Configuring Port Trunking

The Port Trunking Settings page is used to assign ports to a Trunk Group.

Step 1: Select Trk1, Trk2, Trk3, or Trk4 from the Trunk Group drop-down box. Step 2: Select Static, or LACP from the Trunk Type drop-down box. Step 3: Under Member Ports and Available Ports, select the specific ports. Step 4: Use the Up / Down buttons to add/remove designated ports to/from a trunk group.

Trunk Group (Maximum of 3 trunk groups)

Setting Description Factory Default

Trk1, Trk2, Trk3, Trk4 Display or designate the Trunk Type and Member

Ports for Trunk Group 1, 2, 3, 4.

Trunk Type

Setting Description Factory Default

Static Designated Moxa proprietary trunking protocol Static LACP

Designated LACP (IEEE 802.3ad, Link Aggregation Control Protocol)

Trk1

Static

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Available Ports/Member Port

Setting Description Factory Default

Member/Available Ports

Check box Check to designate which ports to add or remove. Unchecked Port Port number N/A Port description Displays the media type for each module’s port N/A Name Max. 63 Characters N/A

Speed

FDX Flow Control

Down

Use Up/Down buttons to add/remove specific ports from available ports to/from trunk group.

Indicates the transmission speed (100M-Full, 100M-Half, 10M-Full, or 10M-Half )

Indicates if the FDX flow control of this port is “Enabled” or “Disabled.”

Add designated ports into trunk group from available ports.

Remove designated ports from trunk group t o available port.

N/A

Trunk Table

Setting Description

Trunk Group Displays the Trunk Type and Trunk Group. Member Port Display which member ports belong to the trunk group. Status Success means po rt trunking is working properly.

Configuring SNMP

The EDS-510A supports SNMP V1/V2c/V3. SNMP V1, and SNMP V2c use a community string match for authentication, which means that SNMP servers access all objects with read-only or read/write permissions using the community string public/private (default value). SNMP V3, which requires you to select an authentication level of MD5 or SHA, is the most secure protocol. You can also enable data encryption to enhance data security.

SNMP security modes and security levels supported by the EDS-510A are shown in the following table. Select the security mode and level that will be used to communicate between the SNMP agent and manager.

Fail means port trunking is not working properly. Standby means port trunking is working as a standby port. When there

are more than eight ports trunked as a trunking group, the 9 be the standby port.

port will

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Protocol

Version

SNMP V1, V2c

SNMP V3

These parameters are configured on the SNMP page. A more detailed explanation of each parameter follows.

UI Setting

V1, V2c Read Community

V1, V2c Write/Read Community

No-Auth No No

MD5 or SHA

Authentication

Type

Community string

Authentication based on MD5 or SHA

Data

Encryption

Data encryption key

Method

Use a community string match for authentication

Use account with admin or user to access objects

Provides authentication based on HMAC-MD5, or HMAC-SHA algorithms. 8-character passwords are the minimum requirement for authentication.

Provides authentication based on HMAC-MD5 or HMAC-SHA algorithms, and data encryption key. 8-character passwords and a data encryption key are the minimum requirements for authentication and encryption.

SNMP Read/Write Settings

SNMP Versions

Setting Description Factory Default

V1, V2c, V3, or V1, V2c, or V3 only

V1, V2c Read Community

Setting Description Factory Default

V1, V2c Read Community

V1, V2c Write/Read Community

Setting Description Factory Default

V1, V2c Read/Write Community

For SNMP V3, there are two levels of privileges for different accounts to access the EDS-510A. Admin privilege allows access, and authorization to read and write the MIB file. User privilege

Select the SNMP protocol version used to

manage the switch.

Use a community string match with a

maximum of 30 characters for

authentication. The SNMP agent accesses

all objects with read-only permissions

using the community string public.

Uses a community string match with a maximum of 30 characters for authentication. The SNMP servers access all objects with read/write permissions using the community string private.

V1, V2c

public

private

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only allows reading the MIB file, but does not have authorization to write.

Admin Auth. Type (for SNMP V1, V2c, V3, and V3 only)

Setting Description Factory Default

No-Auth

MD5-Auth

SHA-Auth

Admin Data Encryption Key (for SNMP V1, V2c, V3, and V3 only)

Setting Description Factory Default

Enable

Disable No data encryption No

Use admin. account to access objects.

No authentication

Provide authentication based on the

HMAC-MD5 algorithms. 8-character

passwords are the minimum requirement

for authentication.

Provide authentication based on the

HMAC-SHA algorithms. 8-character

passwords are the minimum requirement

for authentication.

8-character data encryption key is the

minimum requirement for data encryption

(maximum of 30 characters)

User Auth. Type (for SNMP V1, V2c, V3 and V3 only)

No-Auth

MD5-Auth

SHA-Auth

User Data Encryption Key (for SNMP V1, V2c, V3 and V3 only)

Enable

Disable No data encryption No

Trap Settings

1st Trap Server IP/Name

IP or Name

Setting Description Factory Default

Use admin account or user account to

access objects. No authentication.

Provides authentication based on the

HMAC-MD5 algorithms. 8-character

passwords are the minimum requirement

for authentication.

Provides authentication based on the

HMAC-SHA algorithms. 8-character

passwords are the minimum requirement

for authentication.

Setting Description Factory Default

8-character data encryption key is the minimum requirement for data encryption (maximum of 30 characters)

Setting Description Factory Default

Enter the IP address or name of the 1

Trap Server used by your network.

None

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1st Trap Community

Setting Description Factory Default

Use a community string match for

character string

2nd Trap Server IP/Name

Setting Description Factory Default

IP or Name

2nd Trap Community

Setting Description Factory Default

character string

authentication (maximum of 30

characters).

Enter the IP address or name of the 2

Trap Server used by your network.

Use a community string match for

authentication (maximum of 30

characters).

public

None

public

Private MIB information

Switch Object ID

Setting Description Factory Default

8691.7.10 EDS-510A’s enterprise value Fixed

NOTE: The Switch Object ID cannot be changed.

Using Communication Redundancy

Setting up Communication Redundancy on your network helps protect critical links against failure, protects against network loops, and keeps network downtime at a minimum.

The Communication Redundancy function allows the user to set up redundant loops in the network to provide a backup data transmission route in the event that a cable is inadvertently disconnected or damaged. This is a particularly important feature for industrial applications, since it could take several minutes to locate the disconnected or severed cable. For example, if the EDS-510A is used as a key communications component of a production line, several minutes of downtime could cause a big loss in production and revenue. The EDS-510A supports two different protocols for this communication redundancy function—Rapid Spanning Tree Protocol (IEEE-802.1w) and Turbo Ring.

Turbo Ring and STP/RSTP cannot both be used on the network at the same time. The following table lists the key differences between each feature. Use this information to evaluate the benefits of each, and then determine which features are most suitable for your network.

Turbo Ring STP RSTP Topology Ring Ring, Mesh Ring, Mesh Recovery Time < 300 ms Up to 30 sec. Up to 5 sec

Gigabit Ethernet Redundant Ring Capability (< 300 ms)

Ethernet has become the default data communications medium for industrial automation applications. In fact, Ethernet is often used to integrate video, voice, and high-rate industrial application data transfers into one network. The EDS-510A, which comes equipped with a redundant gigabit Ethernet protocol called Gigabit Turbo Ring, gives system maintainers a convenient means of setting up a versatile yet stable gigabit Ethernet network. With Gigabit Turbo

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Ring, if any segment of the network gets disconnected, your automation system will be back to normal in less than 300 ms.

NOTE

Port trunking and Turbo Ring can be enabled simultaneously to form a back bone. Doing so will increase the bandwidth of the backbone, and also provide redundancy. For example, suppose that two physical ports, 1 and 2, are trunked to form trunk group Trk1, and then Trk1 is set as one Turbo Ring path, if port 1 gets disconnected, the remaining trunked port, port 2, will share the traffic. If port 1 and port 2 are both disconnected, Turbo Ring will create the back up path within 300 ms.

The Turbo Ring Concept

The proprietary Turbo Ring protocol was developed by Moxa to optimize communication redundancy and achieve a faster recovery time on the network.

Turbo Ring protocol identifies one switch as the “master” of the network, and then automatically blocks packets from traveling through any of the network’s redundant loops. In the event that one branch of this ring gets disconnected from the rest of the network, the Turbo Ring protocol automatically readjusts the ring (if possible) so that the part of the network that was disconnected reestablishes contact with the rest of the network.

Initial Setup

1. Select any two ports as redundant ports.

2. Connect the redundant ports to form the

Turbo Ring

You do not need to set the Master to use Turbo Ring. Master is only needed to identify which segment acts as the backup path. The actual topology of the redundant ring, i.e., which segment will be blocked, is determined by the number of EDS-510A switches that make up the ring, and where the “Ring Master” is located.

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When the number of EDS-510A units in the Turbo Ring is even.

Master

If there are 2N EDS-510A units (an even number) in the Turbo Ring, then the backup segment is one of the two segments connected to the (N+1)st EDS-510A (i.e., the EDS-510A unit directly opposite the Master).

When the number of EDS-510A units in the Turbo Ring is odd.

Master

If there are 2N+1 EDS-510A units (an odd number) in the Turbo Ring, with EDS-510A units and segments labeled counterclockwise, then segment N+1 will serve as the backup path.

For the example shown here, N=1, and therefore N+1=2.

Segment N+1

For some systems, it may not be convenient to connect all devices in the system to make one BIG redundant ring, since some devices could be located in a remote area. The “Ring Coupling” function of Turbo Ring can help you separate those distributed devices into different smaller redundant rings, but in such a way that they can still communicate with each other. The following figure illustrates how to couple two Turbo Rings.

ATTENTION

In a VLAN environment, you must set “Redundant Port,” “Coupling Port,” and “Coupling Control Port” as “Trunk Port,” since these ports act as the “backbone” to transmit all packets of different VLANs to different EDS-510A units.

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Ring Coupling

Switch B

Main Path

Coupling Control Port

Backup Path

Coupling Port

Switch A: "Coupler"

Switch D

Switch C

To support the Ring Coupling function, select two EDS-510A (e.g., Switch A and B in the above figure) in the Turbo Ring and another two EDS-510A in the adjacent Turbo Ring (e.g., Switch C and D).

Decide appropriate coupling ports in each switch and link them together. Next, assign one switch (e.g., Switch A) as coupler and set the proper coupling control port with another switch (e.g., Switch B) in the same Turbo Ring, and then connect them. The Coupler switch (e.g., Switch A) will monitor switch B through the coupling control port to decide if the coupling port’s backup path should be recovered or not.

NOTE

ATTENTION

The user only needs to enable the “Ring Coupling” functi o n on one EDS- 51 0 A (not on the opposing EDS-510A or an adjacent EDS-510A). The Redundant Port, Coupling Port, and Coupling Control Port must all be assigned to different ports.

Ring Coupling and Ring Master do not need to be set up on the same EDS-510A.

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Configuring Turbo Ring

Use the Communication Redundancy page to configure Turbo Ring.

NOTE

Now Active

This field shows which communication protocol is in use: Turbo Ring, RSTP, or neither.

Master/Slave

This field appears only when Turbo Ring mode is selected for Redundancy Protocol. It indicates if this EDS-510A is or is not the Master of the Turbo Ring.

The user does not need to set the master to use Turbo Ring, only to assign which segment serves as the backup path.

The master will be determined automatically if the user does not set a dedicated master for the Turbo Ring.

Redundant Port Status

This field indicates the current status of redundant ports. The state is “Forwarding” for normal transmission, “Blocked” for transmission that is stopped if this port is the backup path, and “Link down” for non-connection.

Ring Coupling

Indicates if the Ring Coupling function is “Enabled” or “Disabled.”

Coupling Port Status

This indicates the current status of coupling ports. The state is “Forwardin g” fo r no rmal transmission, “Blocked” for transmission that is stopped if this port is the backup path, and “Link down” for non-connection.

At the bottom of the page, the user can configure this function’s “Settings.” For Turbo Ring, the user can configure:

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Redundancy Protocol

Setting Description Factor y Def au l t

Turbo Ring RSTP (IEEE

802.1W/1D)

Set as Master

Setting Description Factor y Def au l t

Enable/Disable Select this EDS-510A as Master None

Redundant Ports

Setting Description Factor y Def au l t

1st Port

Select this item to change to the Turbo Ring configuration page.

Select this item to change to the RSTP configuration page.

Select any port of EDS-510A to be one of the redundant ports.

None

Port G2 if enabled for Turbo Ring

2nd Port

Enable Ring Coupling

Setting Description Factor y Def au l t

Enable/Disable Select this EDS-510A as Coupler None

Coupling Ports

Setting Description Factor y Def au l t

Coupling Port

Coupling Control Port

The STP/RSTP Concept

Spanning Tree Protocol (STP) was designed to help reduce link failures in a network, and provide protection from loops. Networks that have a complicated architecture are prone to broadcast storms caused by unintended loops in the network. Moxa EDS-510A’s STP feature is disabled by default. To be completely effective, you must enable RSTP/STP on every EDS-510A connected to your network.

Rapid Spanning Tree Protocol (RSTP) implements the Spanning Tree Algorithm and Protocol defined by IEEE Std 802.1w-2001. RSTP provides the following benefits:

y The topology of a bridged network will be determined much more quickly compared to STP. y RSTP is backward compatible with STP, making it relatively easy to deploy. For example:

¾ Defaults to sending 802.1D style BPDUs if packets with this format are received. ¾ STP (802.1D) and RSTP (802.1w) can operate on different ports of the same EDS-510A.

This feature is particularly helpful when EDS-510A ports connect to older equipment, such as legacy switches.

Select any port of EDS-510A to be one of the redundant ports.

Select any port of EDS-510A to be the coupling port

Select any port of EDS-510A to be the coupling control port

Port G3 if enabled for Turbo Ring

Port 7 if enabled for Ring Coupling

Port G1 if enabled for Ring Coupling

You get essentially the same functionality with RSTP and STP. To see how the two systems differ, see the Differences between RSTP and STP section in this chapter.

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NOTE

What is STP?

The STP protocol is part of the IEEE Std 802.1D, 1998 Edition bridge specification. The following explanation uses bridge instead of switch.

STP (802.1D) is a bridge-based system that is used to implement parallel paths for network traffic. STP uses a loop-detection process to:

y Locate and then disable less efficient paths (i.e., paths that have a lower bandwidth). y Enable one of the less efficient paths if the most efficient path fails.

The figure below shows a network made up of three LANs separated by three bridges. Each segment uses at most two paths to communicate with the other segments. Since this configuration can give rise to loops, the network will overload if STP is NOT enabled.

LAN 1

Bridge B

Bridge A

LAN 2

Bridge C

LAN 3

If STP is enabled, it will detect duplicate paths and prevent, or block, one of them from forwarding traffic. In the following example, STP determined that traffic from LAN segment 2 to LAN segment 1 should flow through Bridges C and A because this path has a greater bandwidth and is therefore more efficient.

LAN 1

Bridge B

Bridge A

LAN 2

Bridge C

LAN 3

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What happens if a link failure is detected? As shown in next figure, the STP process reconfigures the network so that traffic from LAN segment 2 flows through Bridge B.

LAN 1

Bridge B

Bridge A

STP will determine which path between each bridged segment is most efficient, and then assigns a specific reference point on the network. When the most efficient path has been identified, the other paths are blocked. In the previous 3 figures, STP first determined that the path through Bridge C was the most efficient, and as a result, blocked the path through Bridge B. After the failure of Bridge C, STP re-evaluated the situation and opened the path through Bridge B.

LAN 2

Bridge C

LAN 3

How STP Works

When enabled, STP determines the most appropriate path for traffic through a network. The way it does this is outlined in the sections below.

STP Requirements

Before STP can configure the network, the system must satisfy the following requirements: y Communication between all the bridges. This communication is carried out using Bridge

Protocol Data Units (BPDUs), which are transmitted in packets with a known multicast address.

y Each bridge must have a Bridge Identifier that specifies which bridge acts as the central

reference point, or Root Bridge, for the STP system—bridges with a lower Bridge Identifier are more likely to be designated as the Root Bridge. The Bridge Identifier is calculated using the MAC address of the bridge and a priority defined for the bridge. The default priority of EDS-510A is 32768.

y Each port has a cost that specifies the efficiency of each link. The efficiency cost is usually

determined by the bandwidth of the link, with less efficient links assigned a higher cost. The following table shows the default port costs for a switch:

Port Speed Path Cost 802.1D,

1998 Edition

10 Mbps 100 2,000,000 100 Mbps 19 200,000 1000 Mbps 4 20,000

STP Calculation

The first step of the STP process is to perform calculations. During this stage, each bridge on the network transmits BPDUs. The following items will be calculated:

Path Cost

802.1w-2001

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y Which bridge should be the Root Bridge. The Root Bridge is the central reference point from

which the network is configured.

y The Root Path Costs for each bridge. This is the cost of the paths from each bridge to the Root

Bridge.

y The identity of each bridge’s Root Port. The Root Port is the port on the bridge that connects

to the Root Bridge via the most efficient path. In other words, the port connected to the Root Bridge via the path with the lowest Root Path Cost. The Root Bridge, however, does not have a Root Port.

y The identity of the Designated Bridge for each LAN segment. Th e Designated Bridge is the

bridge with the lowest Root Path Cost from that segment. If several bridges have the same Root Path Cost, the one with the lowest Bridge Identifier becomes the Designated Bridge. Traffic transmitted in the direction of the Root Bridge will flow through the Designated Bridge. The port on this bridge that connects to the segment is called the Designated Bridge Port.

STP Configuration

After all the bridges on the network agree on the identity of the Root Bridge, and all other relevant parameters have been established, each bridge is configured to forward traffic only between its Root Port and the Designated Bridge Ports for the respective network segments. All other ports are blocked, which means that they will not be allowed to receive or forward traffic.

STP Reconfiguration

Once the network topology has stabilized, each bridge listens for Hello BPDUs transmitted from the Root Bridge at regular intervals. If a bridge does not receive a Hello BPDU after a certain interval (the Max Age time), the bridge assumes that the Root Bridge, or a link between itself and the Root Bridge, has gone down. This will trigger the bridge to reconfigure the network to account for the change. If you have configured an SNMP trap destination, when the topology of your network changes, the first bridge to detect the change sends out an SNMP trap.

Differences between RSTP and STP

RSTP is similar to STP, but includes additional information in the BPDUs that allow each bridge to confirm that it has taken action to prevent loops from forming when it decides to enable a link to a neighboring bridge. Adjacent bridges connected via point-to-point links will be able to enable a link without waiting to ensure that all other bridges in the network have had time to react to the change. The main benefit of RSTP is that the configuration decision is made locally rather than network-wide, allowing RSTP to carry out automatic configuration and restore a link faster than STP.

STP Example

The LAN shown in the following figure has three segments, with adjacent segments connected using two possible links. The various STP factors, such as Cost, Root Port, Designated Bridge Port, and Blocked Port are shown in the figure.

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LAN Segment 1

Port 1 (Designated Bridge Port)

Bridge A

Port 2 (Root Bridge)

Cost =100

Bridge B

Port 1 (Root Port)

Cost =100

Bridge C

Port 2 (Designated Bridge Port)

Port 1 (Root Port)

Port 2 (Designated Bridge Port)

LAN Segment 2

LAN Segment 3

Cost =200

Bridge Y

Port 1 (Root Port)

Cost =100

Bridge X

Port 2 (Blocked Port)

Port 1 (Root Port)

Port 2 (Blocked Port)

y Bridge A has been selected as the Root Bridge, since it was determined to have the lowest

Bridge Identifier on the network.

y Since Bridge A is the Root Bridge, it is also the Designated Bridge for LAN segment 1. Port 1

on Bridge A is selected as the Designated Bridge Port for LAN Segment 1.

y Ports 1 of Bridges B, C, X, and Y are all Root Ports sine they are nearest to the Root Bridge,

and therefore have the most efficient path.

y Bridges B and X offer the same Root Path Cost for LAN segment 2. However, Bridge B was

selected as the Designated Bridge for that segment since it has a lower Bridge Identifier. Port 2 on Bridge B is selected as the Designated Bridge Port fo r LAN Segment 2.

y Bridge C is the Designated Bridge for LAN segment 3, because it has the lowest Root Path

Cost for LAN Segment 3:

¾ The route through Bridges C and B costs 200 (C to B=100, B to A=100) ¾ The route through Bridges Y and B costs 300 (Y to B=200, B to A=100)

y The Designated Bridge Port for LAN Segment 3 is Port 2 on Bridge C.

Using STP on a Network with Multiple VLANs

IEEE Std 802.1D, 1998 Edition, does not take into account VLANs when calculating STP information—the calculations only depend on the physical connections. Consequently, some network configurations will result in VLANs being subdivided into a number of isolated sections by the STP system. You must ensure that every VLAN configuration on your network takes into account the expected STP topology and alternative topologies that may result from link failures.

The following figure shows an example of a network that co ntains VLANs 1 and 2. The VLANs are connected using the 802.1Q-tagged link between Switch B and Switch C. By default, this link has a port cost of 100 and is automatically blocked because the other Switch-to-Switch connections have a port cost of 36 (18+18). This m eans that both VLANs are now subdivided—VLAN 1 on Switch units A and B cannot communicate with VLAN 1 on Switch C, and VLAN 2 on Switch units A and C cannot communicate with VLAN 2 on Switch B.

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Switch A

100BaseTX full-duplex Link; only carries VLAN1 (path cost = 18)

VLAN1 VLAN2

To avoid subdividing VLANs, all inter-switch connections should be made members of all available 802.1Q VLANs. This will ensure connectivity at all times. For example, the connections between Switches A and B, and between Switches A and C should be 802.1Q tagged and carrying VLANs 1 and 2 to ensure connectivity.

See the “Configuring Virtual LANs” section for more information about VLAN Tagging.

Configuring STP/RSTP

The following figures indicate which Spanning Tree Pr ot o col pa rameters can be configured. A more detailed explanation of each parameter follows.

VLAN1 VLAN2

Switch B Switch C

Block

802.1Q tagged, 10BaseTx half-duplex Link carries VLAN1, 2 (path cost = 100)

VLAN1 VLAN2

100BaseTX full-duplex Link; only carries VLAN2 (path cost = 18)

At the top of this page, the user can check the “Current Status” of this function. For RSTP, you will see:

Now Active:

This will show which communication protocol is being used—Turbo Ring, RSTP, or neither.

Root/Not Root

This field will appear only when selected to operate in RSTP mode. It indicates whether or not this EDS-510A is the Root of the Spanning Tree (the root is determined automatically).

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At the bottom of this page, the user can configure the “Settings” of this function. For RSTP, you can configure:

Protocol of Redundancy

Setting Description Factory Default

Turbo Ring Select this item to change to the Turbo Ring

configuration page.

RSTP (IEEE 802.1W/1D) Select this item to change to the RSTP

configuration page.

Bridge priority

Setting Description Factory Default

Numerical value selected by user

Forwarding Delay

Setting Description Factory Default

Numerical value input by user

Increase this device’s bridge priority by selecting a lower number. A device with a higher bridge priority has a greater chance of being established as the root of the Spanning Tree topology.

The amount of time this device waits before checking to see if it should change to a different state.

None

32768

15 (sec.)

Hello time (sec.)

Setting Description Factory Default

Numerical value input by user

Max. Age (sec.)

Setting Description Factory Default

Numerical value input by user

Enable STP per Port

Setting Description Factory Default

Enable/Disable Select to enable the port as a node on the

The root of the Spanning Tree topology periodically sends out a “hello” message to other devices on the network to check if the topology is healthy. The “hello time” is the amount of time the root waits between sending hello messages.

If this device is not the root, and it has not received a hello message from the root in an amount of time equal to “Max. Age,” then this device will reconfigure itself as a root. Once two or more devices on the network are recognized as a root, the devices will renegotiate to set up a new Spanning Tree topology.

Spanning Tree topology.

Disabled

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NOTE

We suggest not enabling the Spanning Tree Protocol once the port is connected to a device (PLC, RTU, etc.) as opposed to network equipment. The reason is that it will cause unnecessary negotiation.

Port Priority

Setting Description Factory Default

Numerical value selected by user

Port Cost

Setting Description Factory Default

Numerical value input by user

Port Status

Indicates the current Spanning Tree status of this port. “Forwarding” for normal transmission, or “Blocking” to block transmission.

Configuration Limits of RSTP/STP

The Spanning Tree Algorithm places limits on three of the configuration items described previously:

[Eq. 1]: 1 sec ≦ Hello Time ≦ 10 sec [Eq. 2]: 6 sec ≦ Max. Age ≦ 40 sec [Eq. 3]: 4 sec ≦ Forwarding Delay ≦ 30 sec

Increase this port’s priority as a node on the Spanning Tree topology by entering a lower number.

Input a higher cost to indicate that this port is less suitable as a node for the Spanning Tree topology.

128

200000

These three variables are further restricted by the following two inequalities: [Eq. 4]: 2 * (Hello Time + 1 sec) ≦ Max. Age ≦ 2 * (Forwarding Dela y – 1 se c)

Moxa EDS-510A’s firmware will alert you immediately if any of these restrictions are violated. For example, setting

Hello Time = 5 sec, Max. Age = 20 sec, and Forwarding Delay = 4 sec does not violate Eqs. 1 through 3, but does violate Eq. 4, since in this case,

2 * (Hello Time + 1 sec) = 12 sec, and 2 * (Forwarding Delay – 1 sec) = 6 sec. You can remedy the situation in many ways. One solution is simply to increase the Forwarding

Delay value to at least 11 sec. HINT: Perform the following steps to avoid guessing: Step 1: Assign a value to “Hello Time” and then calculate the left most part of Eq. 4 to get the

lower limit of “Max. Age.” Step 2: Assign a value to “Forwarding Delay” and then calculate the right most part of Eq. 4 to get

the upper limit for “Max. Age.” Step 3: Assign a value to “Forwarding Delay” that satisfies the conditions in Eq. 3 and Eq. 4.

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Using Traffic Prioritization

EDS-510A’s traffic prioritization capability provides Quality of Service (QoS) to your network by making data delivery more reliable. You can prioritize traffic on your network to ensure that high priority data is transmitted with minimum delay. Traffic can be controlled by a set of rules to obtain the required Quality of Service for your network. The rules define different types of traffic and specify how each type should be treated as it passes through the switch. Moxa EDS-510A can inspect both IEEE 802.1p/1Q layer 2 CoS tags, and even layer 3 TOS information to provide consistent classification of the entire network. EDS-510A’s QoS capability improves the performance and determinism of industrial networks for mission critical applications.

The Traffic Prioritization Concept

What is Traffic Prioritization?

Traffic prioritization allows you to prioritize data so that time-sensitive and system-critical data can be transferred smoothly and with minimal delay over a network. The benefits of using traffic prioritization are:

y Improve network performance by controlling a wide variety of traffic and managing

congestion.

y Assign priorities to different categories of traffic. For example, set higher priorities for

time-critical or business-critical applications.

y Provide pred ictable throughput for multimedia applications, such as video conferencing or

voice over IP, and minimize traffic delay and jitter.

y Improve network performance as the amount of traffic grows. This will save cost by reducing

the need to keep adding bandwidth to the network.

How Traffic Prioritization Works

Traffic prioritization uses the four traffic queues that are present in your EDS-510A to ensure that high priority traffic is forwarded on a different queue from lower priority traffic. This is what provides Quality of Service (QoS) to your network.

EDS-510A traffic prioritization depends on two industry-standard methods:

y IEEE 802.1D—a layer 2 marking scheme. y Differentiated Services (DiffServ)—a layer 3 marking scheme.

IEEE 802.1D Traffic Marking

The IEEE Std 802.1D, 1998 Edition marking scheme, which is an enhancement to IEEE Std

802.1D, enables Quality of Service on the LAN. Traffic service levels are defined in the IEEE

802.1Q 4-byte tag, which is used to carry VLAN identification as well as IEEE 802.1p priority information. The 4-byte tag immediately follows the destination MAC address an d Source MAC address.

The IEEE Std 802.1D, 1998 Edition priority marking scheme assigns an IEEE 802.1p priority level between 0 and 7 to each frame. This determines the level of service that that type of traffic should receive. Refer to the table below for an example of how different traffic types can be mapped to the eight IEEE 802.1p priority levels.

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IEEE 802.1p Priority Level IEEE 802.1D Traffic Type

0 Best Effort (default) 1 Background 2 Standard (spare) 3 Excellent Effort (business critical) 4 Controlled Load (streaming multimedia) 5 Video (interactive media); less than 100 milliseconds

of latency and jitter

6 Voice (interactive voice); less than 10 milliseconds of

latency and jitter

7 Network Control Reserved traffic

Even though the IEEE 802.1D standard is the most widely used prioritization scheme in the LAN environment, it still has some restrictions:

y It requires an additional 4-byte tag in the frame, which is normally optional in Ethernet

networks. Without this tag, the scheme cannot work.

y The tag is part of the IEEE 802.1Q header, so to implement QoS at layer 2, the entire network

must implement IEEE 802.1Q VLAN tagging.

It is only supported on a LAN and not routed across WAN links, since the IEEE 802.1Q tags are removed when the packets pass through a router.

Differentiated Services (DiffServ) Traffic Marking

DiffServ is a Layer 3 marking scheme that uses the DiffServ Code Point (DSCP) field in the IP header to store the packet priority information. DSCP is an advanced intelligent method of traffic marking as you can choose how your network prioritizes diff erent types of traffic. DSCP uses 64 values that map to user-defined service levels, allowing you to establish more control over network traffic.

Advantages of DiffServ over IEEE 802.1D are: y Configure how you want your switch to treat selected applications and types of traffic by

assigning various grades of network service to them.

y No extra tags are required in the packet. y DSCP uses the IP header of a packet and therefore priority is preserved across the Internet. y DSCP is backward compatible with IPV4 TOS, which allows operation with existing devices

that use a layer 3 TOS enabled prioritization scheme.

Traffic Prioritization

EDS-510A classifies traffic based on layer 2 of the OSI 7 layer model, and the switch prioritizes received traffic according to the priority information defined in the received packet. Incoming traffic is classified based upon the IEEE 802.1D frame and is assigned to the appropriate priority queue based on the IEEE 802.1p service level value defined in that packet. Service level markings (values) are defined in the IEEE 802.1Q 4-byte tag, and consequently traffic will only contain

802.1p priority markings if the network is configured with VLANs and VLAN tagging. The traffic flow through the switch is as follows:

1. A packet received by the EDS-510A may or may not have an 802.1p tag associated with it. If

it does not, then it is given a default 802.1p tag (which is usually 0). Alternatively, the packet may be marked with a new 802.1p value, which will result in all knowledge of the old 802.1p tag being lost.

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2. As the 802.1p priority levels are fixed to the traffic queues, the packet will be placed in the

appropriate priority queue, ready for transmission through the appropriate egress port. When the packet reaches the head of its queue and is about to be transmitted, the device determines whether or not the egress port is tagged for that VLAN. If it is, then the new 802.1p tag is used in the extended 802.1D header.

The EDS-510A will check a packet received at the ingress port for IEEE 802.1D traffic classification, and then prioritize it based upon the IEEE 802.1p value (service levels) in that tag. It is this 802.1p value that determines to which traffic queue the packet is mapped.

Traffic Queues

The EDS-510A hardware has multiple traffic queues that allow packet prioritization to occur. Higher priority traffic can pass through the EDS-510A without being delayed by lower priority traffic. As each packet arrives in the EDS-510A, it passes through any ingress processing (which includes classification, marking/re-marking), and is then sorted into the appropriate queue. The switch then forwards packets from each queue.

EDS-510A supports two different queuing mech anisms: y Weight Fair: This method services all the traffic queues, giving priority to the higher priority

queues. Under most circumstances, this method gives high priority precedence over low-priority, but in the event that high-priority traffic exceeds the link capacity, lower priority traffic is not blocked.

y Strict: This method services high traffic queues first; low priority queues are delayed until no

more high priority data needs to be sent. This method always gives precedence to high priority over low-priority.

Configuring Traffic Prioritization

Quality of Service (QoS) provides a traffic prioritization capability to ensure that important data is delivered consistently and predictably. EDS-510A Series can inspect IEEE 80 2.1p/1Q layer 2 CoS tags, and even layer 3 TOS information, to provide a consistent classification of the entire network. EDS-510A Series’ QoS capability improves your industrial network’s performance and determinism for mission critical applications.

QoS Classification

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Moxa EDS-510A supports inspection of layer 3 TOS and/or layer 2 CoS tag information to determine how to classify traffic packets.

Queuing Mechanism

Setting Description Factory Default

Weighted Fair EDS-510A has 4 priority queues. In the weighted fair

scheme, an 8, 4, 2, 1 weighting is applied to the four priorities. This approach prevents the lower priority frames from being starved of opportuni t y for transmission with only a slight delay to the higher priority frames.

Strict In the Strict-priority scheme, all top-priority frames

egress a port until that priority’s queue is empty, and then the next lower priority queue’s frames egress. This approach can cause the lower priorities to be starved of opportunity for transmitting any frames but ensures all high priority frames to egress the switch as soon as possible.

Port Highest Priority

Setting Description Factory Default

Enable/Disable Set the Port Priority of the ingress frames to “High”

queues.

Weight Fair

Disable

NOTE

Inspect TOS

Setting Description Factory Default

Enable/Disable Select the option to enable EDS-510A to inspect the

Type of Service (TOS) bits in IPV4 frame to determine the priority of each frame.

Inspect COS

Setting Description Factory Default

Enable/Disable Select the option to enable EDS-510A to inspect the

802.1p COS tag in the MAC frame to determine the priority of each frame.

The priority of an ingress frame is determined in order by:

1. Port Highest Priority

2. Inspect TOS

3. Inspect CoS

The designer can enable these classifications individually or in combination. For instance, if a ‘hot,’ higher priority port is required for a network design, “Inspect TOS” and “Inspect CoS” can be disabled. This setting leaves only port default priority active, which results in all ingress frames being assigned the same priority on that port.

Enable

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CoS Mapping

Setting Description Factory

Low/Normal/ Medium/High

Set the mapping table of different CoS values to 4 different egress queues.

0: Low 1: Low 2: Normal 3: Normal 4: Medium 5: Medium 6: High 7: High

TOS/DiffServ Mapping

Setting Description Factory Default

Low/Normal/ Medium/High

Set the mapping table of different TOS values to 4 different egress queues.

1 to 16: Low 17 to 32: Normal 33 to 48: Medium 49 to 64: High

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Using Virtual LAN

Setting up Virtual LANs (VLANs) on your EDS-510A increases the eff iciency of your network by dividing the LAN into logical segments, as opposed to physical segments. In general, VLANs are easier to manage.

The Virtual LAN (VLAN) Concept

What is a VLAN?

A VLAN is a group of devices that can be located anywhere on a network, but which communicate as if they are on the same physical segment. With VLANs, you can segment your network without being restricted by physical connections—a limitation of traditional network design. As an example, with VLANs you can segment your network according to:

y Departmental groups—You could have one VLAN for the Marketing department, another

for the Finance department, and another for the Development department.

y Hierarchical groups—You could have one VLAN for directors, another for managers, and

another for general staff.

y Usage groups—You could have one VLAN for e-mail users, and another for multimedia

users.

Switch A

1 2

3 4

5 6

7 8

Department 1 VLAN 1

Benefits of VLANs

The main benefit of VLANs is that they provide a network segmentation system that is far more flexible than traditional networks. Using VLANs also provides you with three other benefits:

y VLANs ease the relocation of devices on networks: With traditional networks, network

administrators spend most of their time dealing with moves and changes. If users move to a different subnetwork, the addresses of each host must be updated manually. With a VLAN setup, if a host on VLAN Marketing, for example, is moved to a port in another part of the network, and retains its original subnet membership, you only need to specify that the new port is on VLAN Marketing. You do not need to carry out any re-cabling.

Backbone connects multiple switches

1 2

Department 2 VLAN 2

3 4

5 6

Switch B

7 8

Department 3 VLAN 3

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y VLANs provide extra security: Devices within each VLAN can only communicate with

other devices on the same VLAN. If a device on VLAN Marketing needs to communicate with devices on VLAN Finance, the traffic must pass through a routing device or Layer 3 switch.

y VLANs help control traffic: With traditional networks, congestion can be caused by

broadcast traffic that is directed to all network devices, regardless of whether or not they need it. VLANs increase the efficiency of your network because each VL AN can be set up to contain only those devices that need to communicate with each other.

VLANs and Moxa EtherDevice Switch

Your EDS-510A provides support for VLANs using IEEE Std 802.1Q-1998. This standard allows traffic from multiple VLANs to be carried across one physical link. The IEEE Std 802.1Q-1998 standard allows each port on your EDS-510A to be placed in:

y Any one VLAN defined on the EDS-510A. y Several VLANs at the same time using 802.1Q tagging.

The standard requires that you define the 802.1Q VLAN ID for each VLAN on your EDS-510A before the switch can use it to forward traffic:

Managing a VLAN

A new or initialized EDS-510A contains a single VLAN—the Default VLAN. This VLAN has the following definition:

y VLAN Name—Management VLAN y 802.1Q VLAN ID—1 (if tagging is required)

All the ports are initially placed on this VLAN, and it is the only VLAN that allows you to access the management software of the EDS-510A over the network.

Communication Between VLANs

If devices connected to a VLAN need to communicate to devices on a different VLAN, a router or Layer 3 switching device with connections to both VLANs needs to be installed. Communication between VLANs can only take place if they are all connected to a routing or Layer 3 switching device.

VLANs: Tagged and Untagged Membership

The EDS-510A supports 802.1Q VLAN tagging, a system that allows traffic for multiple V LANs to be carried on a single physical (backbone, trunk) link. When setting up VLANs you need to understand when to use untagged and tagged membership of VLANs. Simply put, if a port is on a single VLAN it can be an untagged member, but if the port needs to be a member of multiple VLANs, tagged membership must be defined.

A typical host (e.g., clients) will be untagged members of one VLAN, defined as “Access Port” in the EDS-510A, while inter-switch connections will be tagged members of all VLANs, defined as “Trunk Port” in the EDS-510A.

The IEEE Std 802.1Q-1998 defines how VLANs ope rat e wit hi n an open packet -switched network. An 802.1Q compliant packet carries additional information that allows a switch to determine which VLAN the port belongs. If a frame is carrying the additional information, it is known as a tagged frame.

To carry multiple VLANs across a single physical (backbone, trunk) link, each packet must be tagged with a VLAN identifier so that the switches can identify which packets belong to which VLAN. To communicate between VLANs, a router must be used.

The EDS-510A supports two types of VLAN port settings:

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y Access Port: The port connects to a single device that is not tagged. The user must define the

default port PVID that determines to which VLAN the device belongs. Once the ingress packet of this Access Port egresses to another Trunk Port (the port needs all packets to carry tag information), the EDS-510A will insert this PVID into this packet to help the next 802.1Q VLAN switch recognize it.

y Trunk Port: The port connects to a LAN that consists of untagged devices/tagged devices

and/or switches and hubs. In general, the traffic of the Trunk Port must have a Tag. Users can also assign PVID to a Trunk Port. The untagged packet on the Trunk Port will be assigned the port default PVID as its VID.

The following section illustrates how to use these ports to set up different applications.

Sample Applications of VLANs using Moxa EDS-510A

Device A Switch A Switch B

VLAN 5 Untagged Device

Port 3 (Trunk Port, PVID 1)

Port 1 (Access Port PVID 5)

Port 2 (Trunk Port PVID 2, Fixed VLAN (Tagged)=3,4)

Port 4 (Access Port PVID 2)

HUB

Device E

VLAN 4 Tagged Device, VID 4

Device B

VLAN 2 Untagged Device

Device C

VLAN 2 Untagged Device

In this application, y Port 1 connects a single untagged device and assigns it to VLAN 5; it should be configured as

“Access Port” with PVID 5.

y Port 2 connects a LAN with tw o untagged devices belonging to VLAN 2. One tagged device

with VID 3 and one tagged device with VID 4. It should be configured as “Trunk Port” with PVID 2 for untagged device and Fixed VLAN (Tagged) with 3 and 4 for tagged device. Since each port can only have one unique PVID, all untagged devices on the same port can only belong to the same VLAN.

y Port 3 connects with another switch. It should be configured as “Trunk Port.” GVRP protocol

will be used through the Trunk Port.

y Port 4 connects a single untagged device and assigns it to VLAN 2; it should be configured as

“Access Port” with PVID 2.

y Port 5 connects a single untagged device and assigns it to VLAN 3; it should be configured as

“Access Port” with PVID 3.

Device D

VLAN 3 Tagged Device, VID 3

Port 7 (Access Port PVID 4)

Port 5 (Access Port

PVID 3)

Device F

VLAN 2 Untagged Device

Device I

VLAN 4 Untagged Device

Device H

VLAN 3 Untagged Device

Port 6 (Access Port PVID 5)

Device G

VLAN 5 Untagged Device

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y Port 6 connect a single untagged device and assigns it to VLAN 5; it should be configured as

“Access Port” with PVID 5.

y Port 7 connects a single untagged device and assigns it to VLAN 4; it should be configured as

“Access Port” with PVID 4.

After proper configuration: y Packets from device A will travel through “Trunk Port 3” with tagged VID 5. Switch B will

recognize its VLAN, pass it to port 6, and then remove tags received successfully by device G, and vice versa.

y Packets from device B and C will travel through “Trunk Port 3” with tagged VID 2. Switch B

recognizes its VLAN, passes it to port 4, and then removes tags received successfully by device F, and vice versa.

y Packets from device D will travel through “Trunk Port 3” with tagged VID 3. Switch B will

recognize its VLAN, pass to port 5, and then remove tags received successfully by device H. Packets from device H will travel through “Trunk Port 3” with PVID 3. Switch A will recognize its VLAN and pass it to port 2, but will not remove tags received successfully by device D.

y Packets from device E will travel through “Trunk Port 3” with tagged VID 4. Switch B will

recognize its VLAN, pass it to port 7, and then remove tags received successfully by device I. Packets from device I will travel through “Trunk Port 3” with tagged VID 4. Switch A will recognize its VLAN and pass it to port 2, but will not remove tags received successfully by device E.

Configuring Virtual LAN

VLAN Settings

To configure the EDS-510A’s 802.1Q VLAN, use the VLAN Settings page to configur e the ports.

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VLAN Mode

Setting Description Factory Default

802.1Q VLAN Set VLAN mode to 802.1Q VLAN Port-based VLAN Set VLAN mode to Port-based VLAN

Management VLAN ID

Setting Description Factory Default

VLAN ID ranges from 1 to 4094

Port Type

Setting Description Factory Default

Access This port type is used to connect single devices without

Trunk Select “Trunk” port type to connect another 802.1Q

Set the management VLAN of this EDS-510A. 1

tags.

VLAN aware switch or another LAN that combines tagged and/or untagged de vi ces and/ o r ot her switches/hubs.

802.1Q VLAN

Access

ATTENTION

For communication redundancy in the VLAN environment, set “Redundant Port,” “Coupling Port,” and “Coupling Control Port” as “Trunk Port,” since these ports act as the “backbone” to transmit all packets of different VLANs to different EDS-510A units.

Port PVID

Setting Description Factory Default

VID range from 1 to 4094

Fixed VLAN List (Tagged)

Setting Description Factory Default

VID range from 1 to 4094

Forbidden VLAN List

Setting Description Factory Default

VID range from 1 to 4094

Set the port default VLAN ID for untagged devices that connect to the port.

This field will be active only when selecting the “Trunk” port type. Set the other VLAN ID for tagged devices that connect to the “Trunk” port. Use commas to separate different VIDs.

This field will be active only when selecting the “Trunk” port type. Set the VLAN IDs that will not be supported by this trunk port. Use commas to separate different VIDs.

None

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To configure the EDS-510A’s Port-based VLAN, use the VLAN Setting page to configure the ports.

VLAN Mode

Setting Description Factory Default

802.1Q VLAN Set VLAN mode to 802.1Q VLAN Port-based VLAN Set VLAN mode to Port-based VLAN

802.1Q VLAN

Port

Setting Description Factory Default

Enable/Disable Set port to specific VLAN Group. Enable

(all ports belong to VLAN1)

VLAN Table

In 802.1Q VLAN table, you can review the VLAN groups that were created, Joined Access Ports, and Trunk Ports, and in Port-based VLAN table, you can review the VLAN group and Joined port.

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NOTE

The physical network can have a maximum of 64 VLAN settings.

Using Multicast Filtering

Multicast filtering improves the performance of networks that carry multicast traffic. This section explains multicasts, multicast filtering, and how multicast filtering can be implemented on your EDS-510A.

The Concept of Multicast Filtering

What is an IP Multicast?

A multicast is a packet sent by one host to multiple hosts. Only those hosts that belong to a specific multicast group will receive the multicast. If the network is set up correctly, a multicast can only be sent to an end-station or a subset of end-stations on a LAN or VLAN that belong to the multicast group. Multicast group members can be distributed across multiple subnets, so that multicast transmissions can occur within a campus LAN or over a WAN. In addition, networks that support IP multicast send only one copy of the desired information across the network until the delivery path that reaches group members diverges. To make more efficient use of network bandwidth, it is only at these points that multicast packets are duplicated and forwarded. A multicast packet has a multicast group address in the destination address field of the packet’s IP header.

Benefits of Multicast

The benefits of using IP multicast are that it: y Uses the most efficient, sensible method to deliver the same information to many receivers

with only one transmission.

y Reduces the load on the source (for example, a server) since it will not need to produce

several copies of the same data.

y Makes efficient use of network bandwidth and scales well as the number of multicast group

members increases.

y Works with other IP protocols and services, such as Quality of Service (QoS). Multicast transmission makes more sense and is more efficient than unicast transmission for some

applications. For example, multicasts are often used for video-conferencing, since high volumes of traffic must be sent to several end-stations at the same time, but where broadcasting the traffic to all end-stations would cause a substantial reduction in network performance. Furthermore, several industrial automation protocols, such as Allen-Bradley, EtherNet/IP, Siemens Profibus, and Foundation Fieldbus HSE (High Speed Ethernet), use multicast. These industrial Ethernet protocols use publisher/subscr iber c om munications models by multicasting packets that could flood a network with heavy traffic. IGMP Snooping is used to prune multicast traffic so that it travels only to those end destinations that require the traffic, reducing the amount of traffic on the Ethernet LAN.

Multicast Filtering

Multicast filtering ensures that only end-stations that have joined certain groups receive multicast traffic. With multicast filtering, network devices only forward multicast traffic to the ports that are connected to registered end-stations. The following two figures illustrate how a network behaves without multicast filtering, and with multicast filtering.

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Network without multicast filtering

Group 1 Multicast Stream Group 2 Multicast Stream

Serial ports

12345678

910111213141516

IGMP Group2

Console LAN

IGMP Group1 IGMP Group2 IGMP Group1

All hosts receive the multicast traffic, even if they don’t need it. Network with multicast filtering

Group 1 Multicast Stream Group 2 Multicast Stream

IGMP Group2

IGMP Group1 IGMP Group2 IGMP Group1

Hosts only receive dedicated traffic from other hosts belonging to the same group.

Multicast Filtering and Moxa EtherDevice Switch

The EDS-510A has three ways to achieve multicast filtering: IGMP (Internet Group Management Protocol) Snooping, GMRP (GARP Multicast Registration Protocol), and adding a static multicast MAC manually to filter multicast traffic automatically.

IGMP (Internet Group Management Protocol) Snooping Mode

Snooping Mode allows your switch to forward multicast packets only to the appropriate ports. The switch “snoops” on exchanges between hosts and an IGMP device, such as a router, to find those ports that want to join a multicast group, and then configures its filters accordingly.

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Query Mode

Query mode allows the EDS-510A to work as the Querier if it has the lowest IP address on the subnetwork to which it belongs. IGMP querying is enabled by default on the EDS-510A to help prevent interoperability issues with some multicast routers that may not follow the lowest IP address election method. Enable query mode to run multicast sessions on a network that does not contain IGMP routers (or queriers).

NOTE

The EDS-510A is compatible with any device that conforms to the IGMP v2 and IGMP v3 device protocol.

IGMP Multicast Filtering

IGMP is used by IP-supporting network devices to register hosts with multicast groups. It can be used on all LANs and VLANs that contain a multicast capable IP router, and on other network devices that support multicast filtering. IGMP works as follows:

1. The IP router (or querier) periodically sends query packets to all end-stations on the LANs or

VLANs that are connected to it. For networks with more than one IP router, the router with the lowest IP address is the querier. A switch with IP address lower th an the IP address of any other IGMP queriers connected to the LAN or VLAN can become the IGMP querier.

2. When an IP host receives a query packet, it sends a report packet back that identifies the

multicast group that the end-station would like to join.

3. When the report packet arrives at a port on a switch with IGMP Snooping enabled, the switch

knows that the port should forward traffic for the multicast group, and then proceeds to forward the packet to the router.

4. When the router receives the report packet, it registers that the LAN or VLAN requires traffic

for the multicast groups.

5. When the router forwards traffic for the multicast group to the LAN or VLAN, the switches

only forward the traffic to ports that received a report packet.

GMRP (GARP Multicast Registration Protocol)

The EDS-510A supports IEEE 802.1D-1998 GMRP (GARP Multicast Registration Protocol), which differs from IGMP (Internet Group Management Protocol). GMRP is a MAC-based multicast management protocol, whereas IGMP is IP-based. GMRP provides a mechanism that allows bridges and end stations to register or de-register Group membership information dynamically. GMRP functions similarly to GVRP, except that GMRP registers multicast addresses on ports. When a port receives a GMRP-join message, it will register the multicast address to its database if the multicast address is not registered, and all the multicast packets with that multicast address are able to be forwarded from this port. When a port receives a GMRP-leave message, it will de-register the multicast address from its database, and all the multicast packets with this multicast address are not able to be forwarded from this port.

Static Multicast MAC

Some devices may only support multicast packets, but not support either IGMP Snooping or GMRP. The EDS-510A supports adding multicast groups manually to enable multicast filtering.

Enabling Multicast Filtering

Use the serial console or Web interface to enable or disable IGMP Snooping and IGMP querying. If IGMP Snooping is not enabled, then IP multicast traffic is always forwarded, flooding the network.

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Configuring IGMP Snooping

IGMP Snooping provides the ability to prune multicast traffic so that it travels only to those end destinations that require that traffic, thereby reducing the amount of traffic on the Ethernet LAN.

IGMP Snooping Settings

IGMP Snooping Enable

Setting Description Factory Default

Enable/Disable Select the option to enable the IGMP Snooping function

globally.

Query Interval

Setting Description Factory Default

Numerical value input by user

IGMP Snooping

Setting Description Factory Default

Enable/Disable Select the option to enable the IGMP Snooping function

Querier

Setting Description Factory Default

Enable/Disable Select the option to enable the EDS-510A’s querier

Static Multicast Router Port

Setting Description Factory Default

Select/Deselect Select the option to select which ports will connect to

Set the query interval of the Querier function globally. Valid settings are from 20 to 600 seconds.

per VLAN.

function.

the multicast routers. It’s active only when IGMP Snooping is enabled.

Disabled

125 seconds

Enabled if IGMP Snooping Enabled Globally

Enabled if IGMP Snooping is Enabled Globally

Disabled

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NOTE

At least one switch must be designated the Querier or enable IGMP snooping and GMRP when enabling Turbo Ring and IGMP snooping simultaneously.

IGMP Table

The EDS-510A displays the current active IGMP groups that were detected.

The information includes VID, Auto-learned Multicast Router Port, Static Multicast Router Port, Querier Connected Port, and the IP and MAC addresses of active IGMP groups.

Add Static Multicast MAC

If required, the EDS-510A also supports adding multicast groups manually.

Add New Static Multicast Address to the List

Setting Description Factory Default

MAC Address Input the multicast MAC address of this host. None

MAC Address

Setting Description Factory Default

integer Input the number of the VLAN to which the host with

this MAC Address belongs.

Join Port

Setting Description Factory Default

Select/Deselect Select the appropriate options to select the join ports for

this multicast group.

None

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Configuring GMRP

GMRP is a MAC-based multicast management protocol, whereas IGMP is IP-based. GMRP provides a mechanism that allows bridges and end stations to register or un-register Group membership information dynamically.

GMRP enable

Setting Description Factory Default

Enable/Disable Select the option to enable the GMRP function for the

port listed in the Port column

GMRP Table

The EDS-510A displays the current active GMRP groups that were detected.

Setting Description

Fixed Ports This multicast address is defined by static multicast. Learned Ports This multicast address is learned by GMRP.

Using Bandwidth Management

In general, one host should not be allowed to occupy unlimited bandwidth, particularly when the device malfunctions. For example, so-called “broadcast storms” could be caused by an incorrectly configured topology, or a malfunctioning device. The EDS-510A series not only prevents broadcast storms, but can also be configured to a different ingress rate for all packets, giving administrators full control of their limited bandwidth to prevent undesirable effects caused by unpredictable faults.

Disable

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Traffic Rate Limiting Settings

Ingress

Setting Description Factory Default

Ingress rate Select the ingress rate for all packets from the following

options: not limited, 3%, 5%, 10%, 15%, 25%, 35%, 50%, 65%, 85%

N/A

Using Port Access Control

The EDS-510A provides two kinds of Port-Based Access Controls. One is Static Port Lock and the other is IEEE 802.1X.

Static Port Lock

The EDS-510A can also be configured to protect static MAC addresses for a specific port. With the Port Lock function, these locked ports will not learn any additional addresses, but only allow traffic from preset static MAC addresses, helping to block crackers and careless usage.

IEEE 802.1X

The IEEE 802.1X standard defines a protocol for client/server-based access control and authentication. The protocol restricts unauthorized clients from connecting to a LAN through ports that are open to the Internet, and which otherwise would be readily accessible. The purpose of the authentication server is to check each client that requests access to the port. The client is only allowed access to the port if the client’s permission is authenticated.

The IEEE 802.1X Concept

Three components are used to create an authentication mechanism based on 802.1X standards: Client/Supplicant, Authentication Server, and Authenticator.

Supplicant: The end station that requests access to the LAN and switch services and resp onds to the requests from the switch.

Authentication server: The server that performs the actual authentication of the supplicant. Authenticator: Edge switch or wireless access point that acts as a proxy between the supplicant

and the authentication server, requesting identity information from the supplicant, verifying the information with the authentication server, and relaying a response to the supplicant.

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The EDS-510A acts as an authenticator in the 802.1X environment. A supplicant and an authenticator exchange EAPOL (Extensible Authentication Protocol over LAN) frames with each other. We can either use an external RADIUS server as the authentication server, or implement the authentication server in the EDS-510A by using a Local User Database as the authentication look-up table. When we use an external RADIUS server as the authentication server, the authenticator and the authentication server exchange EAP frames between each other.

Authentication can be initiated either by the supplicant or the authenticato r. When the supplicant initiates the authentication process, it sends an “EAPOL-Start” frame to the authenticator. When the authenticator initiates the authentication process or when it receives an “EAPOL Start” frame, it sends an “EAP Request/Identity” frame to ask for the username of the supplicant. The following actions are described below:

Message Exchange

Authentication

Client

EAPOL-Start

EAP-Request/Identity

server

(RADIUS)

EAP-Response/Identity

EAP-Request/OTP

EAP-Response/OTP

EAP-Success

Port Authorized

EAPOL-Logoff

Port Unauthorized

1. When the supplicant receives an “EAP Request/Identity” frame, it sends an “EAP

Response/Identity” frame with its username back to the authenticator.

2. If the RADIUS server is used as the authentication server, the authenticator relays the “EAP

Response/Identity” frame from the supplicant by encapsulating it into a “RADIUS Access-Request” frame and sends to the RADIUS server. When the authentication server receives the frame, it looks up its database to check if the username exists. If the username is not present, the authentication server replies with a “RADIUS Access-Reject” frame to the authenticator if the server is a RADIUS server or just indicates failure to the authenticator if the Local User Database is used. The authenticator sends an “EAP-Failure” frame to the supplicant.

3. The RADIUS server sends a “RADIUS Access-Challenge,” which contains an “EAP Request”

with an authentication type to the authenticator to ask for the password from the client. RFC 2284 defines several EAP authentication types, such as “MD5-Challenge,” “One-Time Password,” and “Generic Token Card.” Currently, only “MD5-Challeng e” is supported. If the Local User Database is used, this step is skipped.

4. The authenticator sends an “EAP Request/MD5-Challenge” frame to the supplicant. If the

RADIUS server is used, the “EAP Request/MD5-Challenge” frame is retrieved directly from the “RADIUS Access-Challenge” frame.

RADIUS Access-Request

RADIUS Access-Challenge

RADIUS Access-Request

RADIUS Access-Accept

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5. The supplicant responds to the “EAP Request/MD5-Challenge” by sending an “EAP

Response/MD5-Challenge” frame that encapsulates the user’s password using the MD5 hash algorithm.

6. If the RADIUS server is used as the authentication server, the authenticator relays the “EAP

Response/MD5-Challenge” frame from the supplicant by encapsulating it into a “RADIUS Access-Request” frame along with a “Shared Secret,” which must be the same within the authenticator and the RADIUS server, and sends the frame to the RADIUS server. The RADIUS server checks against the password with its database, and replies with “RADIUS Access-Accept” or “RADIUS Access-Reject” to the authenticator. If the Local User Database is used, the password is checked against its database and indicates success or failure to the authenticator.

7. The authenticator sends “EAP Success” or “EAP Failure” based on the reply from the

authentication server.

Configuring Static Port Lock

The EDS-510A supports adding unicast groups manually if required.

Setting Description Factory Default

MAC Address Add the static unicast MAC address into the address

table.

Port Fix the static address with a dedicated port. 1

Configuring IEEE 802.1X

None

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Database Option

Setting Description Factory Default

Local (Max. 32 users)

Radius Select this option to set an external RADIUS server as

Radius, Local Select this option to make an external RADIUS server as

Radius Server

Setting Description Factory Default

IP address or domain name

Server Port

Setting Description Factory Default

Numerical The UDP port of the RADIUS Server 1812

Select this option when setting the Local User Database as the authentication database.

the authentication database. The authentication mechanism is “EAP-MD5.”

the authentication database with first priority. The authentication mechanism is “EAP-MD5.” The first priority is to set the Local User Database as the authentication database.

The IP address or domain name of the RADIUS server localhost

Local

Shared Key

Setting Description Factory Default

alphanumeric (Max. 40 characters)

Re-Auth

Setting Description Factory Default

Enable/Disable Select to require re-authentication of the client after a

Re-Auth Period

Setting Description Factory Default

Numerical (60-65535 sec.)

802.1X

Setting Description Factory Default

Enable/Disable Select the option under the 802.1X column to enable

A key to be shared between the external RADIUS server and the EDS-510A. Both ends must be configured to use the same key.

preset time period of no activity has elapsed.

Specify how frequently the end stations need to reenter usernames and passwords in order to stay connected.

IEEE 802.1X for one or more ports. All end stations must enter usernames and passwords before access to these ports is allowed.

None

Disable

3600

Disable

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802.1X Re-Authentication

The EDS-510A can force connected devices to be re-authorized manually.

802.1X Re-Authentication

Setting Description Factory Default

Enable/Disable Select the option to enable 802.1X Re-Authentication Disable

Local User Database Setup

When setting the Local User Database as the authentication database, set the database first.

Local User Database Setup

Setting Description Factory Default

User Name (Max. 30 characters)

Password (Max. 16 characters)

User Name for Local User Database None

Password for Local User Database None

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Description (Max. 30 characters)

NOTE

The user name for the Local User Database is case-insensitive.

Port Access Control Table

The port status will indicate whether the access is authorized or unauthorized.

Description for Local User Database None

Using Auto Warning

Since industrial Ethernet devices are often located at the endpoints of a system, these devices will not always know what is happening elsewhere on the network. This means that an industrial Ethernet switch that connects to these devices must provide system maintainers with real-time alarm messages. Even when control engineers are out of the control room for an extended period of time, they can still be informed of the status of devices almost instantaneously when exceptions occur. The EDS-510A supports different approaches to warn engineers automatically, such as by using email and relay output. It also supports two digital inputs to integrate sensors into your system to automate alarms using email and relay output.

Configuring Email Warning

The Auto Email Warning function uses e-mail to alert the user when certain user-configured events take place.

Three basic steps are required to set up the Auto Warning function:

1. Configuring Email Event Types

Select the desired Event types from the Console or Web Browser Event type page (a description of each event type is given later in the Email Alarm Events setting subsection).

2. Configuring Email Settings

To configure the EDS-510A’s email setup from the Console interface or browser interface, enter your Mail Server IP/Name (IP address or name), Account Name, Account Password, Retype New Password, and the email address to which warning messages will be sent.

3. Activate your settings and if necessary, test the email

After configuring and activating your EDS-510A’s Event Type s and Email Setup, you can use the Test Email function to see if your e-mail addresses and mail server address have been properly configured.

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Event Type

Event Types can be divided into two basic groups: System Events and Port Events. System Events are related to the overall function of the switch, whereas Port Events are related to the activity of a specific port.

System Events Warning e-mail is sent when…

Switch Cold Start Power is cut off and then reconn ected. Switch Warm Start The EDS-510A is rebooted, such as when network

parameters are changed (IP address, subnet mask,

etc.). Power Transition (OnÆOff) The EDS-510A is powered down. Power Transition (OffÆOn) The EDS-510A is powered up. DI1 (OnÆOff) Digital Input 1 is triggered by on to off transition DI1 (OffÆOn) Digital Input 1 is triggered by off to on transition DI2 (OnÆOff) Digital Input 2 is triggered by on to off transition DI2 (OffÆOn) Digital Input 2 is triggered by off to on transition Configuration Change Activated A configuration item has been changed. Authentication Failure An incorrect password is entered. Comm. Redundancy Topology

Changed

Port Events Warning e-mail is sent when…

Link-ON The port is connected to another device. Link-OFF Traffic-Overload The port’s traffic surpasses the Traffic-Threshold for

Spanning Tree Protocol switches have changed their

position (applies only to the root of the tree).

The Master of the Turbo Ring has changed or the

backup path is activated.

The port is disconnected (e.g., the cable is pulled out,

or the opposing device shuts down).

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that port (provided this item is Enabled). Traffic-Threshold (%)

Traffic-Duration (sec.)

Enter a non-zero number if the port’s

Traffic-Overload item is Enabled.

A Traffic-Overload warning is sent every

Traffic-Duration seconds if the average

Traffic-Threshold is surpassed during that time

period.

NOTE

The Traffic-Overload, Traffic-Threshold (%), and Traffic-Duration (sec.) Port Event items are related. If you Enable the Traffic-Overload event, then be sure to enter a non-zero Traffic-Threshold percentage, as well as a Traffic-Durat io n bet ween 1 and 300 seconds.

Warning e-mail messages will have the sender field formatted in the form:

where Moxa_EtherDevice_Switch is the default Switch Name, 0001 is the EDS-510A’s serial number, and Switch_Location is the default Server Location.

Refer to the Basic Settings section to see how to modify Switch Name and Switch Location.

Email Setup

Moxa_EtherDevice_Switch_0001@Switch_Location

Mail Server IP/Name

Setting Description Factory Default

IP address The IP Address of your email server. None

Account Name

Setting Description Factory Default

Max. 45 Characters

Password Setting

Setting Description Factory Default

Disable/Enable to To reset the Password from the Web Browser interface, Disable

Your email account name (typically your user name) None

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change Password click the Change password check-box, type the Old

Password, type the New Password, retype the New

password, and then click Activate; Max. 45 Characters. Old Password Type the current password when changing the password None New Password Type new password when enabled to change password;

Max. 45 Characters. Retype Password If you type a new password in the Password field, you

will be required to retype the password in the Retype

new password field before updating the new passwor d.

Email Address

Setting Description Factory Default

Max. 30 characters

Send Test Email

After configuring the email settings, you should first click Activate to activate those settings, and then click Send Test Email to verify that the settings are correct.

You can set up to 4 email addresses to receive alarm

emails from the EDS-510A.

None

NOTE

Auto warning e-mail messages will be sent through an authentication protected SMTP server that supports the CRAM-MD5, LOGIN, and PLAIN methods of SASL (Simple Authentication and Security Layer) authentication mechanism.

We strongly recommend not entering your Account Name and Account Password if auto warning e-mail messages can be delivered without using an authentication mechanism.

Configuring Relay Warning

The Auto Relay Warning function uses relay output to alert the user when certain user-configured events take place. There are two basic steps required to set up the Relay Warning function:

1. Configuring Relay Event Types

Select the desired Event types from the Console or Web Browser Event type page (a description of each event type is given later in the Relay Alarm Events setting subsection).

2. Activate your settings

After completing the configuration procedure, you will need to activate your EDS-510A’s Relay Event Types.

Event Setup

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The EDS-510A supports two relay outputs. You can configure which relay output is related to which events. This helps administrators identify the importance of the different events.

System Events Warning Relay output is triggered when…

Power Transition (OnÆOff) The EDS-510A is powered on. Power Transition (OffÆOn) The EDS-510A is powered down. DI1 (OnÆOff) Digital Input 1 is triggered by on to off transition DI1 (OffÆOn) Digital Input 1 is triggered by off to on transition DI2 (OnÆOff) Digital Input 2 is triggered by on to off transition DI2 (OffÆOn) Digital Input 2 is triggered by off to on transition Turbo Ring Break (Ring Master

Only)

Port Events Warning e-mail is sent when…

Link-ON The port is connected to another device. Link-OFF

Traffic-Overload

Traffic-Threshold (%)

Traffic-Duration (sec.)

When the EDS-510A is the Master of this Turbo Ring, and the Turbo Ring is disconnected.

The port is disconnected (e.g., the cable is pulled out, or the opposing device shuts down).

The port’s traffic surpasses the Traffic-Threshold for that port (provided this item is Enabled).

Enter a non-zero number if the port’s Traffic-Overload item is Enabled.

A Traffic-Overload warning is sent every Traffic-Duration seconds if the average Traffic-Threshold is surpassed during that time period.

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NOTE

The Traffic-Overload, Traffic-Threshold (%), and Traffic-Duration (sec) Port Event items are related. If you Enable the Traffic-Overload event, then be sure to enter a non-zero Traffic-Threshold percentage, as well as a Traffic-Durat io n bet ween 1 and 300 seconds.

Override relay alarm settings

Select this option to override the relay warning setting temporarily. Releasing the relay output will allow administrators to fix any problems with the warning condition.

Warning List

Use this table to see if any relay alarms have been issued.

Using Line-Swap-Fast-Recovery

The Line-Swap Fast Recovery function, which is enabled by default, allows the EDS-510A to return to normal operation extremely quickly after devices are unplugged and then re-plugged into different ports. The recovery time is on the order of a few milliseconds (compare this with standard commercial switches for which the recovery time could be on the order of several minutes). To disable the Line-Swap Fast Recovery function, or to re-enable the function after it has already been disabled, access either the Console utility’s Line-Swap recovery page, or the Web Browser interface’s Line-Swap fast recovery page, as the following figure shows:

Configuring Line-Swap Fast Recovery

Enable Line-Swap-Fast-Recovery

Setting Description Factory Default

Enable/Disable Select this option to enable the

Line-Swap-Fast-Recovery function

Using Set Device IP

To reduce the effort required to set up IP addresses, the EDS-510A series comes equipped with DHCP/BOOTP server and RARP protocol to set up IP addresses of Ethernet-enabled devices automatically.

When enabled, the Set device IP function allows th e EDS-510A to assign specific IP addresses automatically to connected devices that are equIPped with DHCP Client or RARP protocol. In

Enable

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effect, the EDS-510A acts as a DHCP server by assigning a connected device with a specific IP address stored in its internal memory. Each time the connected device is switched on or rebooted, the EDS-510A sends the device the desired IP address.

Perform the following steps to use the Set device IP function: STEP 1—set up the connected devices Set up those Ethernet-enabled devices connected to

the EDS-510A for which you would like IP addresses to be assigned automatically. The devices must be configured to obtain their IP address automatically.

The devices’ configuration utility should include a setup page that allows you to choose an option similar to Obtain an IP address automatically.

For example, Windows’ TCP/IP Properties window is shown at the right. Although your device’s configuration utility may look quite a bit different, this figure should give you some idea of what to look for.

You also need to decide to which of the EDS-510A’s ports your Ethernet-enabled devices will be connected. You will need to set up each of these ports separately, as described in the following step.

STEP 2 Configure the EDS-510A’s Set device IP function, either from the Console utility or from the

Web Browser interface. In either case, you simply need to enter the Desired IP for each port that needs to be configured.

STEP 3 Be sure to activate your settings before exiting.

• When using the Web Browser interface, activate by clicking Activate.

• When using the Console utility, activate by first highligh ting the Activate menu option, and

then press Enter. You should receive the Set device IP settings are now active! (Press any key to continue) message.

Configuring Set Device IP

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Desired IP Address

Setting Description Factory Default

IP Address Set the desired IP of connected devices. None

Using Diagnosis

The EDS-510A provides two important tools for administrators to diagnose network systems.

Mirror Port

The Mirror port function can be used to monitor data being transmitted through a specific port. This is done by setting up another port (the mirror port) to receive the same data being transmitted from, or both to and from, the port under observation. This allows the network administrator to “sniff” the observed port and thus keep tabs on network activity.

Perform the following steps to set up the Mirror Port function: STEP 1

Configure the EDS-510A’s Mirror Port function from either the Console utility or Web Browser interface. You will need to configure three settings:

Monitored Port

Mirror Port

Watch Direction

STEP 2

Be sure to activate your settings before exiting.

• When using the Web Browser interface, activate by clicking Activate.

• When using the Console utility, activate by first highligh ting the Activate menu option, and

then press Enter. You should receive the Mirror port settings are now active! (Press any key to continue) message.

Select the port number of the port whose network activity will be monitored.

Select the port number of the port that will be used to monitor the activity of the monitored port.

Select one of the following two watch direction options:

y Output data stream

Select this option to monitor only those data packets being sent out through the EDS-510A’s port.

y Bi-directional

Select this option to monitor data packets both coming into, and being sent out through, the EDS-510A’s port.

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Ping

The Ping function uses the ping command to give users a simple but powerful tool for troubleshooting network problems. The function’s most unique feature is that even though the ping command is entered from the user’s PC keyboard, the actual ping command originates from the EDS-510A itself. In this way, the user can essentially control the EDS-510A and send ping commands out through its ports.

To use the Ping function, type in the desired IP address, and then press Enter from the Console utility, or click Ping when using the Web Browser interface.

Using Monitor

You can monitor statistics in real time from the EDS-510A’s web console and serial console.

Monitor by Switch

Access the Monitor by selecting “System” from the left selection bar. Monitor by System allows the user to view a graph that shows the combined data transmission activity of all the EDS-510A’s 18 ports. Click one of the four options—Total Packets, TX Packets, RX Packets, or Error Packets—to view transmission activity of specific types of packets. Recall that TX Packets are packets sent out from the EDS-510A, RX Packets are packets received from connected devices, and Error Packets are packets that did not pass TCP/IP’s error checking algorithm. The Total Packets option displays a graph that combines TX, RX, and TX Error, RX Error Packets activity. The graph displays data transmission activity by showing Packets/s (i.e., packets per second, or pps) versus sec. (seconds). In fact, three curves are displaye d on the same graph: Unicast packets (in red color), Multicast packets (in green color), and Broadcast packets (in blue color). The graph is updated every few seconds, allowing the user to analyze data transmission activity in real-time.

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Monitor by Port

Access the Monitor by Port function by selecting ALL 10/100M or 1G Ports or Port i, in which i= 1, 2, …, G2, from the left pull-down list. The Port i options are identical to the Monitor by

System function discussed above, in that users can view graphs that show All Packets, TX Packets, RX Packets, or Error Packets activity, but in this case, only for an individual port. option is essentially a graphical display of the individual port activity that can be viewed with the Console Monitor function discussed above. The All Ports option shows three vertical bars for each port. The height of the bar represents Packets/s for the type of packet, at the instant the bar is being viewed. That is, as time progresses, the height of the bar moves up or down so that the user can view the change in the rate of packet transmission. The blue colored bar shows Unicast packets, the red colored bar shows Multicast packets, and the orange colored bar shows Broadcast packets. The graph is updated every few seconds, allowing the user to analyze data transmission activity in real-time.

The All Ports

Using the MAC Address Table

This section explains the information provided by the EDS-510A’s MAC address table.

The MAC Address table can be configured to display the following EDS-510A MAC address groups.

ALL Select this item to show all EDS-510A MAC ad dresses ALL Learned Select this item to show all EDS-510A Learned MAC addresses ALL Static Lock Select this item to show all EDS-510A Static Lock MAC addresses ALL Static Select this item to show all EDS-510A Static/Static Lock /Static

Multicast MAC addresses

ALL Static Multicast

Port x Select this item to show all MAC addresses of dedicated ports

Select this item to show all EDS-510A Static Multicast MAC addresses

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The table will display the following information: MAC This field shows the MAC address

Type This field shows the type of this MAC address Port This field shows the port that this MAC address belongs to

Using Event Log

NOTE

Bootup This field shows how many times the EDS-510A has been rebooted or cold started. Date The date is updated based on how the current date is set in the “Basic Setting” page. Time The time is updated based on how the current time is set in the “Basic Setting” page. System

Startup Time

Events Events that have occu rre d.

The following events will be recorded into the EDS-510A’s Event Log table:

1. Cold start

2. Warm start

3. Configuration change activated

4. Power 1/2 transition (Off Æ On), Power 1/2 transition (On Æ Off)

5. Authentication fail

6. Topology changed

7. Master setting is mismatched

8. DI 1/2 transition (Off Æ On), DI 1/2 transition (On Æ Off)

9. Port traffic overload

10. dot1x Auth Fail

11. Port link off / on

The system startup time related to this event.

3-64

EDS-510A Series User’s Manual Featured Functions

Using Syslog

This function provides the event logs for the syslog server. The function supports 3 configurable syslog servers and syslog server UDP port numbers. When an event occurs, the ev ent will be sent as a syslog UDP packet to the specified syslog servers.

Syslog Settings

Setting Description Factory Default

Syslog server # The IP address of the syslog server None Port Definition UDP port number (from 1 to 65535) 514

Using HTTPS/SSL

To secure your HTTP access, the EDS-510A supports HTTPS/SSL to encrypt all HTTP traffic. Perform the following steps to access the EDS-510A’s web browser interface via HTTPS/SSL.

1. Open Internet Explorer and type https://EDS-510A’s IP address in the address field. Press

Enter to establish the connection.

2. Warning messages will pop out to warn the user that the security certificate was issued by a

company they have not chosen to trust.

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EDS-510A Series User’s Manual Featured Functions

3. Select Yes to enter the EDS-510A’s web browser interface and access the web browser

interface secured via HTTPS/SSL.

NOTE

Moxa provides a Root CA certificate .After installing this certificate into your PC or notebook, you can access the web browser interface directly and will not see any warning messages again. You may download the certificate from the EDS-510A’s CD-ROM.

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Chapter 4 EDS Configurator GUI

EDS Configurator is a comprehensive Windows-based GUI that is used to configure and maintain multiple EDS-510A switches. A suite of useful utilities is available to help you locate the EDS-510A switches attached to the same LAN as the PC host (regardless of whether or not you know the IP addresses of the switches), connect to an EDS-510A who se IP address is known, modify the network configurations of one or multiple EDS-510A switches, and update the firmware of one or more EDS-510A switches. EDS Configurator is designed to provide you with instantaneous control of all of your EDS-510A switches, regardless of location. You may download the EDS Configurator software from Moxa’s website free of charge.

This chapter includes the following sections:

 Starting EDS Configurator  Broadcast Search  Search by IP address  Upgrade Firmware  Modify IP Address  Export Configuration  Import Configuration  Unlock Server

EDS-510A Series User’s Manual EDS Configurator GUI

Starting EDS Configurator

To start EDS Configurator, locate and then run the executable file edscfgui.exe.

NOTE

You may download the EDS Configurator software from Moxa’s website at www.moxa.com.

For example, if the file was placed on the Windows desktop, it should appear as follows. Simply double click on the icon to run the program.

The Moxa EtherDevice Server Configurator window will open, as shown below.

Broadcast Search

Use the Broadcast Search utility to search the LAN for all EDS-510A switches that are connected to the LAN. Note that since the search is done by MAC address, Broadcast Search will not be able to locate Moxa EtherDevice Servers connected outside the PC host’s LAN. Start by clicking the

Broadcast Search icon The Broadcast Search window will open, displaying a list of all switches located on the network,

as well as the progress of the search.

, or by selecting Broadcast Search under the List Server menu.

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EDS-510A Series User’s Manual EDS Configurator GUI

Once the search is complete, the Configurator window will display a list of all switches that were located.

Search by IP address

This utility is used to search for EDS-510A switches one at a time. Note that the search is conducted by IP address, so you should be able to locate any EDS-510A that is properly connected

to your LAN, WAN, or even the Internet. Start by clicking the Specify by IP address icon by selecting Specify IP address under the List Server menu.

The Search Server with IP Address window will open. Enter the IP address of the switch you wish to search for, and then click OK.

, or

Once the search is complete, the Configurator window will add the switch to the list of switches.

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EDS-510A Series User’s Manual EDS Configurator GUI

Upgrade Firmware

Keep your EDS-510A up to date with the latest firmware from Moxa. Perform the following steps to upgrade the firmware:

1. Download the updated firmware (*.rom) file from the Moxa website (www.moxa.com).

2. Click the switch (from the Moxa EtherDevice Server Configurator window) whose

firmware you wish to upgrade to highlight it.

3. Click the Upgrade Firmware toolbar icon

If the switch is Locked, you will be prompted to input the switch’s User Name and Password.

4. Use the Open window to navigate to the folder that contains the firmware upgrade file, and

then click the correct “*.rom” file (eds.rom in the example shown below) to select the file. Click Open to activate the upgrade process.

, or select Upgrade under the Firmware menu.

Modify IP Address

You may use the Modify IP Address function to reconfigure EDS-510A’s network settings. Start by clicking the Modify IP address icon

Configuration menu. The Setup Configuration window will open. Checkmark the box to the left of those items that

you wish to modify, and then Disable or Enable DHCP, and enter IP Address, Subnet mask, Gateway, and DNS IP. Click OK to accept the changes to the configuration.

, or by selecting Modify IP address under the

4-4

EDS-510A Series User’s Manual EDS Configurator GUI

Export Configuration

The Export Configuratio n utility is used to save the entire configuration of a particular EDS-510A to a text file. Take the following steps to export a configuration:

1. Highlight the switch (from the Server list in the Configurator window’s left pane), and then

click the Export toolbar icon menu. Use the Open window to navigate to the folder in which you want to store the configuration, and then type the name of the file in the File name input box. Click Open.

2. Click OK when the Export configuration to file OK message appears.

or select Export Configuration from the Configuration

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EDS-510A Series User’s Manual EDS Configurator GUI

3. You may use a standard text editor, such as Notepad under Windows, to view and modify the

newly created configuration file.

Import Configuration

The Import Configuration function is used to import an entire configuration from a text file to the EDS-510A. This utility can be used to transfer the configuration from one EDS-510A to another, by first using the Export Configuration function (described in the previous section) to save a switch configuration to a file, and then using the Import Configuration function. Perform the following steps to import a configuration:

1. Highlight the server (from the Moxa EtherDevice Switch list in the Configurator window’s

left pane), and then click the Import toolbar icon the Configuration menu.

2. Use the Open window to navigate to the text file that contains the desired configuration. Once

the file is selected, click Open to initiate the import procedure.

, or select Import Configuration from

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EDS-510A Series User’s Manual EDS Configurator GUI

3. The Setup Configuration window will be displayed, with a special note attached at the

bottom. Parameters that have been changed will be activated with a checkmark. You may make more changes if necessary, and then click OK to accept the changes.

4. Click Yes in response to the following warning message to accept the new settings.

Unlock Server

The Unlock Server function is used to open a password protected switch so that the user can modify its configuration, import/export a configuration, etc. There are six possible responses under the Status column. The Status of an EDS-510A indicates how the switch was located (by Moxa EtherDevice Switch Configurator), and what type of password protection it has.

The six options are as follows (note that the term Fixed is borrowed from the standard fixed IP address networking terminology):

y Locked

The switch is password protected, “Broadcast Search” was used to locate it, and the password has not yet been entered from within the current Configurator session.

y Unlocked

The switch is password protected, “Broadcast Search” was used to locate it, and the password has been entered from within the current Configurator session. Henceforth during this Configurator session, activating various utilities for this switch will not require re-entering the server password.

y Blank

The EDS-510A is not password protected, and “Broadcast Search” was used to locate it.

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EDS-510A Series User’s Manual EDS Configurator GUI

y Fixed

The EDS-510A is not password protected, and “Search by IP address” was used to locate it manually.

y Locked Fixed

The EDS-510A is password protected, “Search by IP address” was used to locate it manually, and the password has not yet been entered from within the current Configurator session.

y Unlocked Fixed

The EDS-510A is password protected, “Search by IP address” was used to locate it manually, and the password has been entered from within the current Configurator session. Henceforth during this Configurator session, activating various utilities for this EDS-510A will not require re-entering the server password.

Follow the steps given below to unlock a locked EDS-510A (i.e., an EDS-510A with Status “Locked” or “Locked Fixed”). Highlight the server (from the Moxa EtherDevice Switch list in the

Configurator window’s left pane), and then click the Unlock toolbar icon from the Configuration menu.

1. Enter the switch’s User Name and Password when prompted, and then click OK.

, or select Unlock

2. When the Unlock status window reports Progress as OK, click the Close button in the upper

right corner of the window.

3. The status of the switch will now read either Unlocked or Unlocked Fixed.

4-8

Appendix A MIB Groups

The EDS-510A comes with built-in SNMP (Simple Network Management Protocol) agent software that supports cold/warm start trap, line up/down trap, and RFC 1213 MIB-II.

The standard MIB groups that the EDS-510A series support are:

MIB II.1 – System Group

sysORTable

MIB II.2 – Interfaces Group

ifTable

MIB II.4 – IP Group

ipAddrTable ipNetToMediaTable IpGroup IpBasicStatsGroup IpStatsGroup

MIB II.5 – ICMP Group

IcmpGroup IcmpInputStatus IcmpOutputStats

MIB II.6 – TCP Group

tcpConnTable TcpGroup TcpStats

MIB II.7 – UDP Group

udpTable UdpStats

EDS-510A Series User’s Manual MIB Groups

MIB II.10 – Transmission Group

dot3 dot3StatsTable

MIB II.11 – SNMP Group

SnmpBasicGroup SnmpInputStats SnmpOutputStats

MIB II.17 – dot1dBridge Group

dot1dBase dot1dBasePortTable dot1dStp dot1dStpPortTable dot1dTp dot1dTpFdbTable dot1dTpPortTable dot1dTpHCPortTable dot1dTpPortOverflowTable pBridgeMIB dot1dExtBase dot1dPriority dot1dGarp qBridgeMIB dot1qBase dot1qTp dot1qFdbTable dot1qTpPortTable dot1qTpGroupTable dot1qForwardUnregisteredTable dot1qStatic dot1qStaticUnicastTable dot1qStaticMulticastTable dot1qVlan dot1qVlanCurrentTable dot1qVlanStaticTable dot1qPortVlanTable

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EDS-510A Series User’s Manual MIB Groups

The EDS-510A also provides a private MIB file, located in the file “Moxa-EDS510A-MIB.my” on the EDS-510A Series utility CD-ROM.

Public Traps:

1. Cold Start

2. Link Up

3. Link Down

4. Authentication Failure

5. dot1dBridge New Root

6. dot1dBridge Topology Changed

Private Traps:

1. Configuration Changed

2. Power On

3. Power Off

4. Traffic Overloaded

5. Turbo Ring Topology Changed

6. Turbo Ring Coupling Port Changed

7. Turbo Ring Master Mismatch

A-3

Appendix B Specifications

Technology

Standards IEEE802.3, 802.3u, 802.3x, 802.1D, 802.1w, 802.1Q, 802.1p Protocols IGMP V1/V2/V3 device, GVRP, SNMP V1/V2c/V3, DHCP

MIB MIB-II, Ethernet-Like MIB, P-BRIDGE MIB, Q-BRIDGE

Interface

RJ45 Ports 10/100/1000BaseT(X) auto negotiation speed, F/H duplex

Fiber Ports Optional 1000BaseSX/LX/LHX/ZX (LC connector) Console RS-232 (RJ45) LED Indicators PWR1, PWR2, FAULT, 10/100M (TP port), 100 0M, Ring

Alarm Contact Two relay outputs with current carrying capacity of 1A @ 24

Digital Input Two inputs with the same ground, but electrically isolated from

1000BaseSX/LX/LHX/ZX Distance: Multi mode: ‧1000BaseSX

0 to 275m, 850 nm (62.5/125 µm, 200 MHz*km) ‧1000BaseLX 0 to 550m, 1310 nm (62.5.125 µm, 500 MHz*km) Single mode:

‧1000BaseLX ‧1000BaseLHX ‧1000BaseZX

Server/Client, BOOTP, TFTP, SNTP, SMTP, RARP and EDS-SNMP OPC server Pro (Optional)

MIB, Bridge MIB, RSTP MIB, RMON MIB Group 1,2.3,9

mode, and auto MDI/MDI-X connection

Master, and Ring Coupler

VDC

the electronics

• For state “1”: +13 to +30V

• For state “0”: -30 to +3V

• Max. input current: 8 mA

0 to 500m, 850 nm (50/125 µm, 400 MHz*km)

0 to 1100m, 1310 nm (50/125 µm, 800 MHz*km)

0 to 10 km, 1310 nm (9/125 µm, 3.5 PS/(nm*km)) 0 to 40 km, 1310 nm ((9/125 µm, 3.5 PS/(nm*km))) 0 to 80 km, 1550 nm ((9/125 µm, 19 PS/(nm*km))

EDS-510A Series User’s Manual Specifications

Power Input Voltage 24 VDC(12 to 45 VDC), redundant inputs Input Current (@24V) 0.47A: (EDS-510A-3GT)

0.38A: (EDS-510A-1GT2SF P ,

0.34A: (EDS-510A-3SFP) Connection Two removable 6-pin terminal blocks Overload Current Protection Present Reverse Polarity Protection Present

Mechanical

Casing IP30 protection, metal case Dimensions (W x H x D)

Weight 1.17 kg Installation DIN-Rail, Wall Mounting (optional kit)

Environmental

Operating Temperature 0 to 60°C (32 to 140°F), standard models

Storage Temperature -40 to 85°C (-40 to 185°F) Ambient Relative Humidity 5% to 95% (non-condensing)

Regulatory Approvals

Safety UL60950, UL 508(Pending), CSA C22.2 No. 60950,

Hazardous Location UL/cUL Class I, Division 2, Groups A, B, C,

EMI FCC Part 15, CISPR (EN55022) class A EMS EN61000-4-2 (ESD), Level 3

Shock IEC60068-2-27 Freefall IEC60068-2-32 Vibration IEC60068-2-6 WARRANTY 5 years

80.5 × 135 × 105 mm

(3.17 × 5.31 × 4.13 in)

-40 to 75°C (-40 to 185°F), wide temp. models

EN60950

and D, ATEX Class I, Zone 2, EEx nC IIC (Pending)

EN61000-4-3 (RS), Level 3 EN61000-4-4 (EFT), Level 2 EN61000-4-5 (Surge), Level 3 EN61000-4-6 (CS), Level 3 EN61000-4-8 EN61000-4-11 EN61000-4-12

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Appendix C Service Information

This appendix shows you how to contact Moxa for information about this and other products, and how to report problems.

In this appendix, we cover the following topics.

 Moxa Internet Services  Problem Report Form  Product Return Procedure

EDS-510A Series User’s Manual Service Information

Moxa Internet Services

Customer satisfaction is our primary concern. To ensure that customers receive the full benefit of our products, Moxa Internet Services has been set up to provide technical support, driver updates, product information, and user’s manual updates.

The following services are provided

E-mail for technical support................................

...............................

Website for product information:

...............................

support@moxanet.com (Worldwide) support@usa.moxa.com (The Americas)

http://www.moxa.com

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EDS-510A Series User’s Manual Service Information

Problem Report Form

Moxa EDS-510A Series

Customer name: Company: Tel: Fax: Email: Date:

Serial Number: ___ ______________

Problem Description: Please describe the symptoms of the problem as clearly as possible, including any error

messages you see. A clearly written description of the problem will allow us to reproduce the symptoms, and expedite the repair of your product.

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EDS-510A Series User’s Manual Service Information

Product Return Procedure

For product repair, exchange, or refund, the customer must:

 Provide evidence of original purchase.  Obtain a Product Return Agreement (PRA) from the sales representative or dealer.  Fill out the Problem Report Form (PRF). Include as much detail as possible for a shorter

product repair time.

 Carefully pack the product in an anti-static package, and send it, pre-paid, to the dealer. The

PRA should be visible on the outside of the package, and include a description of the problem, along with the return address and telephone number of a technical contact.

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Moxa Technologies EDS-510A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Chapter 1 Introduction

Overview

Package Checklist

Features

Industrial Networking Capability

Designed for Industrial Applications

Useful Utility and Remote Configuration

Recommended Software and Accessories

Chapter 2 Getting Started

RS-232 Console Configuration (115200, None, 8, 1, VT100)

Configuration using a Telnet Console

Configuration using a Web Browser

Disabling Telnet and Browser Access

Chapter 3 Featured Functions

Configuring Basic Settings

System Identification

Password

Accessible IP

Port

Network

Time

Turbo Ring DIP Switch

System File Update—By Remote TFTP

System File Update—By Local Import/Export

System File Update—By Backup Media

Restart

Factory Default

Using Port Trunking

The Port Trunking Concept

Configuring Port Trunking

Configuring SNMP

SNMP Read/Write Settings

Trap Settings

Private MIB information

Using Communication Redundancy

Gigabit Ethernet Redundant Ring Capability (< 300 ms)

The Turbo Ring Concept

Configuring Turbo Ring

The STP/RSTP Concept

Configuring STP/RSTP

Using Traffic Prioritization

The Traffic Prioritization Concept

Configuring Traffic Prioritization

Using Virtual LAN

The Virtual LAN (VLAN) Concept

Sample Applications of VLANs using Moxa EDS-510A

Configuring Virtual LAN

Using Multicast Filtering

The Concept of Multicast Filtering

Configuring IGMP Snooping

Add Static Multicast MAC

Configuring GMRP

GMRP Table

Using Bandwidth Management

Traffic Rate Limiting Settings

Using Port Access Control

Configuring Static Port Lock

Configuring IEEE 802.1X

Using Auto Warning

Configuring Email Warning

Event Type

Email Setup

Configuring Relay Warning

Event Setup

Warning List

Using Line-Swap-Fast-Recovery

Configuring Line-Swap Fast Recovery

Using Set Device IP

Configuring Set Device IP

Using Diagnosis

Mirror Port

Ping

Using Monitor

Monitor by Switch

Monitor by Port

Using the MAC Address Table