Moxa Technologies EDS-726 User Manual

MOXA EtherDevice™ Switch
EDS-726 Series User’s Manual
www.moxa.com/product
First Edition, July 2005
Moxa Networking Co., Ltd.
Web:
MOXA Technical Support
Worldwide: The Americas
www.moxa.com
support@moxanet.tw support@moxa.com
MOXA EtherDevice™ Switch
EDS-726 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.
Copyright Notice
Copyright © 2005 Moxa Networking Co., Ltd.
All rights reserved.
Reproduction without permission is prohibited.
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 by Telnet Console.......................................................................................... 2-5
Configuration by Web Browser ............................................................................................ 2-6
Disabling Telnet and Browser Access .................................................................................. 2-8
Chapter 3 Featured Functions ...................................................................................3-1
Overview .............................................................................................................................. 3-2
Configuring Basic Settings................................................................................................... 3-2
System Identification................................................................................................. 3-2
Password ................................................................................................................... 3-3
Accessible IP............................................................................................................. 3-5
Port ............................................................................................................................ 3-6
Network..................................................................................................................... 3-7
Time .......................................................................................................................... 3-9
System File Update—By Remote TFTP ................................................................. 3-10
System File Update—By Local Import/Export....................................................... 3-11
System File Update—By CF Card .......................................................................... 3-12
Factory Default........................................................................................................ 3-12
Using Port Trunking ........................................................................................................... 3-12
The Port Trunking Concept..................................................................................... 3-13
Configuring Port Trunking...................................................................................... 3-14
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-726 ....................................... 3-39
Configuring 802.1Q VLAN .................................................................................... 3-40
Using Multicast Filtering.................................................................................................... 3-42
The Concept of Multicast Filtering ......................................................................... 3-42
Configuring IGMP Snooping .................................................................................. 3-45
Add Static Multicast MAC...................................................................................... 3-47
Configuring GMRP................................................................................................. 3-48
Using Bandwidth Management .......................................................................................... 3-49
Configuring Bandwidth Management..................................................................... 3-49
Using Port Access Control.................................................................................................. 3-50
Configuring IEEE 802.1X....................................................................................... 3-52
Static Port Lock....................................................................................................... 3-55
Using Auto Warning........................................................................................................... 3-56
Configuring Email Warning.................................................................................... 3-56
Email Alarm Events Settings .................................................................................. 3-56
Email Settings ......................................................................................................... 3-58
Configuring Relay Warning .................................................................................... 3-59
Relay Alarm Events Settings................................................................................... 3-59
Relay Alarm List ..................................................................................................... 3-60
Using Line-Swap-Fast-Recovery........................................................................................ 3-61
Configuring Line-Swap Fast Recovery................................................................... 3-61
Using Set Device IP............................................................................................................ 3-61
Configuring Set Device IP ...................................................................................... 3-62
Using Diagnosis.................................................................................................................. 3-63
Mirror Port .............................................................................................................. 3-63
Ping ......................................................................................................................... 3-64
Using Monitor .................................................................................................................... 3-64
Monitor by Switch................................................................................................... 3-64
Monitor by Port ....................................................................................................... 3-65
Using the MAC Address Table ........................................................................................... 3-65
Using Event Log................................................................................................................. 3-66
Chapter 4 EDS Configurator GUI...............................................................................4-1
Starting EDS Configurator ................................................................................................... 4-2
Broadcast Search .................................................................................................................. 4-2
Search by IP address............................................................................................................. 4-3
Upgrade Firmware................................................................................................................ 4-3
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
1
1

Chapter 1 Introduction

Welcome to MOXA EtherDevice Switch EDS-726 Series, the modular managed Gigabit Ethernet Switch designed especially for connecting Ethernet-enabled devices in industrial field applications.
The following topics are covered in this chapter:
Overview Package Checklist Features
EDS-726 Series User’s Manual Introduction

Overview

Network planning is easy and flexible with EDS-726, which has a modular design that lets you install up to 2 Gigabit ports and 24 fast Ethernet ports in one switch. Choose from three 1-port Gigabit modules with copper or fiber optic connectors, and eight 4-port Fast Ethernet modules with copper or fiber optic (SC/ST) connectors. EDS-726 is suitable for any industrial application, and leaves room for future expansion. Features include an angled LED display for convenient viewing from any vertical angle, pluggable CompactFlash for configuration back-up, network redundancy, and intelligent network management. EDS-726 provides more flexibility, reliability, and application-oriented functions to meet the demands of any harsh industrial application.

Package Checklist

MOXA EDS-726 is shipped with the following items. If any of these items is missing or damaged, please contact your customer service representative for assistance.
y 1 MOXA EDS-726 modular switch system or Interface Module y Hardware Installation Guide y CD-ROM with User’s Manual and Windows Utility (for EDS-726 modular switch system
only)
y Moxa Product Warranty booklet y RJ45 to DB9 Console port cable (for EDS-726 modular switch system only)
NOTE: Please notify your Moxa sales representative if any of the above items is missing or damaged.

Features

Industrial Networking Capability

y Redundant Gigabit Ethernet Ring Capability (recovery time < 300 ms at full load) y IGMP Snooping and GMRP for filtering multicast traffic from industrial Ethernet Protocols y Supports IEEE 802.1Q VLAN and GVRP protocol to ease network planning y Supports QoSIEEE 802.1p/1Q and TOS/DiffServ to increase determinism
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

Designed for Industrial Applications

y Modular Managed Switch with up to 26 ports. Choose from the following modules:
¾ Three 1-port Gigabit modules, with 10/100/1000BaseT(X) (RJ45 connector), or
1000BaseSX/LX (SC connector)
¾ Eight 4-port fast Ethernet Modules with a combination of 10/100BaseT(X) (RJ45
connectors) and 100BaseFX (Single/Multimode, SC/ST connectors)
y CompactFlash card for upgrading firmware and loading or saving configurations y Long-haul transmission distance of 40 km or 80 km y Redundant, dual DC power inputs y IP 30, rugged high-strength metal case y DIN-Rail or panel mounting ability y Bandwidth management to prevent unpredictable network status
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EDS-726 Series User’s Manual Introduction
y Lock port for authorized MAC address access 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 by Web browser, Telnet/Serial console, Windows utility y Send ping commands to identify network segment integrity

Recommended Software and Accessories

y EDS-SNMP OPC Server Pro y DR-4524, DR-75-24, DR-120-24 DIN-Rail 24 VDC Power Supply Series y WK-32: Wall Mounting Kit
1-3
2
2

Chapter 2 Getting Started

This chapter explains how to access EDS-726 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 EDS-726 to a PC’s COM port, can be used if you do not know EDS-726’s IP address. The Telnet console and web browser connection methods can be used to access EDS-726 over an Ethernet LAN, or over the Internet.
The following topics are covered:
RS-232 Console Configuration (115200, None, 8, 1, VT100) Configuration by Telnet Console Configuration by Web Browser Disabling Telnet and Browser Access
EDS-726 Series User’s Manual Getting Started

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

NOTE
NOTE
Connection Caution!
1. You cannot connect to EDS-726 simultaneously by serial console and Telnet.
2. You can connect to EDS-726 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-726.
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 EDS-726’s RS-232 Console port to your PC’s COM port (generally COM1 or COM2, depending on how your system is set up).
After installing PComm Terminal Emulator, take the following steps to access the RS-232 Console utility.
1. From the Windows desktop, click on 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-726 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 on the Terminal tab, and select VT100 for Terminal Type. Click on OK to continue.
5. Type 1 to select ansi/VT100 terminal type, and then press Enter.
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EDS-726 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. EDS-726’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-726 Series User’s Manual Getting Started

Configuration by Telnet Console

You may use Telnet to access EDS-726’s console utility over a network. To be able to access EDS’s functions over the network (by Telnet or Web Browser) from a PC host that is connected to the same LAN as EDS-726, you need to make sure that the PC host and EDS-726 are on the same logical subnetwork. To do this, check your PC host’s IP address and subnet mask. By default, EDS-726’s IP address is 192.168.127.253 and EDS-726’s subnet mask is 255.255.0.0 (for a Class B 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 have the form 192.168.127.xxx.
NOTE
NOTE
NOTE
To use EDS-726’s management and monitoring functions from a PC host connected to the same LAN as EDS-726, you must make sure that the PC host and EDS-726 are on the same logical subnetwork.
Before accessing the console utility via Telnet, first connect one of EDS-726’s RJ45 Ethernet ports to your Ethernet LAN, or directly to your PC’s Ethernet NIC. You can establish a connection with either a straight-through or cross-over Ethernet cable.
EDS-726’s default IP is 192.168.127.253.
Follow the steps below to access the console utility via Telnet.
1. Click on Start Æ Run, and then telnet to EDS-726’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.
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EDS-726 Series User’s Manual Getting Started
3. 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.
4. When the Main Menu of EDS-726’s console utility opens, click on Terminal Æ
references… from the menu at the top of the window.
5. When the Terminal Preferences window opens, make sure that the VT100 Arrows box is
checked.
NOTE
The Telnet Console looks and operates in precisely the same manner as the RS-232 Console.

Configuration by Web Browser

MOXA EDS-726’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 EDS-726.
NOTE
NOTE
To use EDS-726’s management and monitoring functions from a PC host connected to the same LAN as EDS-726, you must make sure that the PC host and EDS-726 are on the same logical subnetwork.
If EDS-726 is configured for other VLAN settings, you must make sure your PC host is on the management VLAN. Refer to the “Configuring 802.1Q VLAN” in Chapter 3 for the VLAN settings.
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EDS-726 Series User’s Manual Getting Started
NOTE
NOTE
Before accessing EDS-726’s web browser interface, first connect one of its RJ45 Ethernet ports to your Ethernet LAN, or directly to your PC’s Ethernet NIC. You can establish a connection with either a straight-through or cross-over Ethernet cable.
MOXA EDS-726’s default IP is 192.168.127.253.
Follow the steps below to access EDS-726’s web browser interface.
1. Open Internet Explorer and type EDS-726’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, EDS-726’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 MOXA EtheDevice Switch’s functions.
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EDS-726 Series User’s Manual Getting Started

Disabling Telnet and Browser Access

If you are connecting EDS-726 to a public network, but do not intend to use its management functions over the network, then we suggest disabling both Telnet Console and Web Configuration from the RS-232 Console’s Basic Settings Æ System Identification page, as shown in the following figure.
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3
3

Chapter 3 Featured Functions

This chapter explains how to access EDS-726’s various configuration, monitoring, and 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 EDS-726 to a PC’s COM port, can be used if you do not know EDS-726’s IP address. The Telnet console and web browser connection methods can be used to access EDS-726 over an Ethernet LAN, or over the Internet.
The Web Console is the most user-friendly way to configure EDS-726. 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:
Overview 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
EDS-726 Series User’s Manual Featured Functions

Overview

A real-time simulation of the front-view of your EDS-726 is shown on the Overview web page. You should see the same view that you would see if you were standing right in front of the EDS-726. Position the cursor over the toggle switch and then click the left mouse button to see the different mode statuses of the interface module LED. You can use this figure to view and update status of each EDS-726 on the network.
Active ports will be shown as green in the figure. Inactive ports are shown as black.
PWR
P3P1P4
P2
Note that the module name shown in the figure should match the module used with the switch.
34
12
IM-4TX

Configuring Basic Settings

The Basic Settings group includes the most commonly used settings required by administrators to maintain and control EDS-726.

System Identification

The system identification items are displayed at the top of the web page, and will be included in alarm emails. Setting system identification items makes it easier to identify the different switches connected to your network.
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EDS-726 Series User’s Manual Featured Functions
Switch Name
Setting Description Factory Default
Max. 30 Characters
Switch Location
Setting Description Factory Default
Max. 80 Characters
This option is useful for specifying the role or application of different EDS-726 units. E.g., Factory Switch 1.
To specify the location of different EDS-726 units. E.g., production line 1.
Industrial Redundant Switch [Serial No. of this switch]
Switch Location
Switch Description
Max. 30 Characters
Maintainer Contact Info
Max. 30 Characters

Password

EDS-726 provides two levels of access privilege: admin privilege gives read/write access of all EDS-726 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.
Setting Description Factory Default
Use this space to record a more a detailed description of the EDS-726 unit.
Setting Description Factory Default
To provide information about whom to contact in order to resolve problems. Use this space to record contact information of the person responsible for maintaining this EDS-726.
None
None
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EDS-726 Series User’s Manual Featured Functions
ATTENTION
EDS-726’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 either 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-726 configurations.
user “user” privilege only allows viewing EDS-726
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 updating the new password.
admin
None
None
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EDS-726 Series User’s Manual Featured Functions

Accessible IP

Moxa EDS-726 uses an IP address-based filtering method to control access to EDS-726 units.
Accessible IP Settings allows you to add or remove “Legal” remote host IP addresses to prevent unauthorized access. Access to EDS-726 is controlled by IP address. That is, if a host’s IP address is in the accessible IP table, then the host will be allowed access to the EDS-726. 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-726
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-726
E.g., enter “192.168.1.0/255.255.255.0” to allow access to all IPs on the subnetwork defined by this IP address/subnet mask combination.
y Any host can access the EDS-726
Disable this function by not checkmarking the “Enable the accessible IP list” checkbox.
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-726 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 is given below.
Enable
Setting Description Factory Default
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 Default
Media type Displays the media type for each module’s port N/A
Name
Setting Description Factory Default
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-726 Series User’s Manual Featured Functions
Port Transmission Speed
Setting Description Factory Default
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 Control
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 EDS-726 and connected devices.
Setting Description Factory Default
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 for line speed.
auto-nego mode.
auto-nego mode.
Auto-nego
Enable

Network

Port Type
Setting Description Factory Default
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 is given below.
Choose the MDI or MDIX option if the opposing Ethernet device has trouble auto-negotiating for port type.
Auto
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EDS-726 Series User’s Manual Featured Functions
Auto IP Configuration
Setting Description Factory Default
Disable Set up EDS-726’s IP address manually.
By DHCP EDS-726’s IP address will be assigned
automatically by the network’s DHCP server.
By BootP EDS-726’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-726 Identifies the EDS-726 on a TCP/IP network. 192.168.127.253
Switch Subnet Mask
Setting Description Factory Default
Subnet mask of the EDS-726
Default Gateway
Setting Description Factory Default
Default Gateway of the EDS-726
Identifies the type of network to which the EDS-726 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 EDS-726’s url (e.g.,
www.eds.company.com) in your browser’s
address field, instead of entering the IP address.
The IP address of the DNS Server used by your network. EDS-726 will try to locate the 2nd DNS Server if the 1st DNS Server fails to connect.
None
None
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EDS-726 Series User’s Manual Featured Functions

Time

EDS-726 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
NOTE
EDS-726 does not have a real time clock. The user must update the Current Time and Current Date to set the initial time for EDS-726 after each reboot, especially when the network doesn’t
have an Internet connection for 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 EDS-726’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.
Changing the time zone will automatically correct the current time. You should configure the time zone before setting the time.
00h:00m:00s
1970/01/01
GMT (Greenwich Mean Time)
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EDS-726 Series User’s Manual Featured Functions
Time Server IP/Name
Setting Description Factory Default
1st Time Server IP/Name IP or Domain address (e.g., 192.168.1.1 or
time.stdtime.gov.tw or time.nist.gov).
2nd Time Server IP/Name
Time Server Query Period
Setting Description Factory Default
Query Period This parameter determines how frequently the
EDS-726 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

System File Update—By Remote TFTP

MOXA EDS-726 supports saving your configuration file to a remote TFTP server or local host to allow other EDS-726 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 configuration of EDS-726.
TFTP Server IP/Name
Setting Description Factory Default
IP Address of TFTP Server
Configuration file path and name
Setting Description Factory Default
Max. 40 Characters The path and file name of EDS-726’s configuration
Firmware file path and name
Setting Description Factory Default
Max. 40 Characters The path and file name of EDS-726’s firmware file. None
The IP or name of the remote TFTP server. Must be set up before downloading or uploading files.
file in the TFTP server.
None
None
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EDS-726 Series User’s Manual Featured Functions
Log file path and name
Setting Description Factory Default
Max. 40 Characters The path and file name of EDS-726’s log file None
After setting up the desired path and file name, click on Activate to save the setting, and then click on Download to download the prepared file from the remote TFTP server, or click on Upload to upload the desired file to the remote TFTP server.

System File Update—By Local Import/Export

NOTE
Configuration File
To export the configuration file of this EDS-726, click on Export to save it to the local host.
Log File
To export the Log file of this EDS-726, click on Export and save it to the local host.
Some operating systems will open the configuration file and log file directly in the web page. In such cases, right click on the “Export” button to save a file.
Upgrade Firmware
To import the firmware file of this EDS-726, click on Browse to select the firmware file already saved on your computer. The upgrade procedure will proceed automatically after clicking on Import.
Upload Configure Data
To import the configuration file of this EDS-726, click on Browse to select the configuration file already saved on your computer. The upgrade procedure will proceed automatically after clicking on Import.
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EDS-726 Series User’s Manual Featured Functions

System File Update—By CF Card

Setting Description Factory Default
Enable CF Save/Load Enable saving and loading configuration and/or
firmware from the CF card.
Configuration Check to enable saving and loading the
configuration from the CF card (this option is selected by default if Enable CF Save/Load is checked).
Firmware Check to enable saving and loading the firmware
from the CF card.
Unchecked
N/A
N/A

Factory Default

The Factory Default function is included to give users a quick way of restoring EDS-726’s configuration settings to their factory default values. This function is available in the Console 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-726.

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.
EDS-726’s Port Trunking feature allows devices to communicate by aggregating up to four links in parallel, with a maximum of eight ports for each link. If one of the eight ports fails, the other seven ports will provide back up and share the traffic automatically.
Port trunking can be used to combine up to eight ports between two EDS-726 switches. If all ports on both switch units are configured as 100BASE-TX and they are operating in full duplex, the potential bandwidth of the connection will be 1600 Mbps.
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EDS-726 Series User’s Manual Featured Functions

The Port Trunking Concept

EDS-726 allows a maximum of 4 trunk groups, with a maximum of 8 trunk ports for each trunk group. You can configure the trunk group to be “Static” or “LACP.” Once the trunk group is set to “LACP,” all of the ports making up that group will be set to LACP enabled. The ports in the “Static” trunk groups, and all the non-trunk ports that do not belong to any trunk group, will be set to LACP disabled. When the port is set to LACP enabled, it will exchange LACPDU with its link partner, and will result in “Forwarding.” If all of the ports in the same group are “Blocked” or “Disabled” or “Down” (link-down), the trunk group will not work, and the user will see “LACP Failed” for that trunk group in the user interface.
EDS-726 allows you to set more than 8 ports in one trunk group. Those ports that exceed the port limit (i.e., 8) will be set as “Standby” ports, as defined by the IEEE 802.3ad protocol. A “Standby” port is an LACP enabled port that is attached to a trunk group, but is not functioning yet. The port state of such ports will be listed as “Blocking.” A trunk group on “Standby” cannot be used by another trunk group, or be activated as an individual link. The standby port will start working as a normal trunk port whenever any other trunk port in the same group stops functioning, such as when a port fails to transmit or receive packets due to a physical fault. EDS-726 allows a maximum of 4 “Standby” ports for each LACP trunk group, so that a maximum of 12 ports can be assigned to each LACP trunk group. A Static trunk group cannot have “Standby” ports. This means that a Static trunk group can only have a maximum of 8 ports in the group.
Port Trunking applies to connections between backbone devices as well as to connections in other network areas where traffic bottlenecks exist. Port Trunking provides the following benefits:
y Gives you more flexibility in setting up your network connections, since the bandwidth of a
link can be expanded to 8 times the original bandwidth.
y Provides redundancy—if one link is broken, the remaining trunked ports share the traffic
within this link. EDS-726 allows a maximum of 4 “Standby” ports for each LACP trunk group. In another words, a maximum of 12 ports can belong to each LACP trunk group. These four standby ports provide redundancy to a normal 8-port trunk whenever any other trunk port in the same group does not function properly, such as when the port fails to transmit or receive packets due to a physical fault
y Load sharing—MAC Client traffic may be distributed across multiple links.
Keep the following points in mind when configuring port trunking:
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.
y Up to 4 port trunking groups (designated Trk1, Trk2, Trk3, Trk4) can be used for each
EDS-726.
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EDS-726 Series User’s Manual Featured Functions
y Up to 8 ports can be inserted into each port trunk group. EDS-726 allows a maximum of 4
“Standby” ports for each LACP trunk group. In another words, a maximum of 12 ports can belong to each LACP trunk group.
y The same transmission speed must be assigned to all ports belonging to one port trunking
group. E.g., 100M Full, 100M Half, 10M Full, or 10M Half. The auto-negotiation function should be disabled for these ports.
y Full duplex operation only—Link Aggregation is supported only on point-to-point links with
MACs operating in full duplex mode.
y Multipoint AggregationsThe mechanisms specified in this clause do not support
aggregations among more than two systems.
When you activate port trunking settings, some advanced functions will either be set to factory default values, or disabled:
y Port stat, such as transmitting speed, duplex, and flow control will be set to the factory
defaults.
y Communication Redundancy will be set to the factory default. y 802.1Q VLAN will be set to the factory default and will be disabled. y Multicast Filtering will be set to the factory default. y Port Lock will be set to the factory default and will be disabled. y Set Device IP will be set to the factory default y Mirror Port will be set to the factory default and will be disabled.

Configuring Port Trunking

The Port Trunking Settings page is used to assign ports to a Trunk Group.
Step 1: Select Trk1, Trk2, Trk3, or Trk 4 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, checkmark to select specific ports. Step 4: Use the Up / Down buttons to add/remove designated ports to/from a trunk group.
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EDS-726 Series User’s Manual Featured Functions
Trunk Group (Maximum of 4 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, or 4.
Trunk Type
Setting Description Factory Default
Static Designated Moxa proprietary trunking protocol Static
LACP
Member Ports/Available Ports
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
Up
Down
Designated LACP (IEEE 802.3ad, Link Aggregation Control Protocol)
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 to available port.
Trk1
Static
N/A
N/A
N/A
N/A
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 port trunking is working properly.
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.
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th
port will
EDS-726 Series User’s Manual Featured Functions

Configuring SNMP

EDS-726 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 EDS-726 are shown in the following table. Select the security mode and level that will be used to communicate between the SNMP agent and manager.
Protocol
Version
SNMP V1, V2c
SNMP V3
These parameters are configured on the SNMP page. A more detailed explanation of each parameter is given below the figure.
UI Setting
V1, V2c Read Community
V1, V2c Write/Read Community
No-Auth No No
MD5 or SHA
MD5 or SHA
Authentication
Type
Community string
Community string
Authentication based on MD5 or SHA
Authentication based on MD5 or SHA
Data
Encryption
No
No
No
Data encryption key
Method
Use a community string match for authentication
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.
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EDS-726 Series User’s Manual Featured Functions

SNMP Read/Write Settings

SNMP Versions
Setting Description Factory Default
V1, V2c, V3, or V1, V2c, or V3 only
Select the SNMP protocol version used to manage the switch.
V1, V2c
V1, V2c Read Community
Setting Description Factory Default
Use a community string match with a
maximum of 30 characters for V1, V2c Read Community
V1, V2c Write/Read Community
Setting Description Factory Default
V1, V2c Read/Write Community
authentication. This means that 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. This means that SNMP servers access all objects with read/write permissions using the community string private.
public
private
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EDS-726 Series User’s Manual Featured Functions
For SNMP V3, there are two levels of privilege for different accounts to access the EDS-726. Admin privilege allows access, and authorization to read and write the MIB file. User privilege only allows reading the MIB file, but not authorization to write.
Admin Auth. Type (for SNMP V1, V2c, V3, and V3 only)
Setting Description Factory Default
No-Auth
MD5­Auth
SHA­Auth
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)
No
No
No
No
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

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 Trap
Server used by your network.
No
No
No
No
None
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EDS-726 Series User’s Manual Featured Functions
Trap Community
Setting Description Factory Default
Use a community string match for character string
authentication (maximum of 30
characters).
public

Private MIB information

Switch Object ID
Setting Description Factory Default
8691.7.1 EDS-726’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 MOXA EDS-726 is used as a key communications component of a production line, several minutes of downtime could cause a big loss in production and revenue. MOXA EDS-726 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 table below 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. MOXA EDS-726, 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 Ring, if any segment of the network gets disconnected, your automation system will be back to normal in under 300 ms.
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EDS-726 Series User’s Manual Featured Functions
NOTE
Port trunking and Turbo Ring can be enabled simultaneously to form a backbone. 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
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
LNK/ACT
STAT
PWR
RING
COUPLER
COUPLERCF
MASTER
PORT
PORT
MODE
EtherDevice Switch
EDS-726
34
12
IM-4TX
IM-1GSXSCIM-1GTX
P3P1P4
1. Select any two ports as redundant ports.
P3P1P4
P3P1P4
P3P1P4
P3P1P4
PWR
PWR
PWR
PWR
PWR
P2
P2
P2
P2
P2
P2
3 4
3 4
3 4
4
34
3
TX
TX
TX
TX
TX
RX
RX
RX
RX
RX
1 2
1 2
12
12
12
TX
TX
RX
RX
IM-4MST
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4MSC
2. Connect the redundant ports to form the
Turbo Ring
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
COUPLERCF
MASTER
MODE
EtherDevice Switch
EDS-726
P3P1P4
PWR
PWR
PWR
PWR
PWR
PWR
RING
COUPLER
P2
P2
P2
P2
P2
P2
PORT
PORT
4
3 4
34
34
34
34
3
TX
TX
TX
TX
TX
RX
RX
RX
RX
RX
12
1 2
12
12
12
12
TX
TX
RX
RX
IM-4MST
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4MSC
IM-4TX
IM-1GSXSCIM-1GTX
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
PWR
PWR
PWR
PWR
PWR
PWR
RING
COUPLER
COUPLERCF
MASTER
P2
P2
P2
P2
P2
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
4
3 4
34
34
34
34
3
TX
TX
TX
TX
TX
RX
RX
RX
RX
RX
12
1 2
12
12
12
12
TX
TX
RX
RX
IM-4MST
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4MSC
IM-4TX
IM-1GSXSCIM-1GTX
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-726 switches that make up the ring, and where the “Ring Master” is located.
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EDS-726 Series User’s Manual Featured Functions
When the number of EDS-726 units in the Turbo Ring is even.
PWR1 FAULT
PWR2
STAT
COUPLERCF
MASTER
MODE
EtherDevice Switch
EDS-726
Master
FDX/HDX
SPEED
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
PWR
PWR
PWR
RING
COUPLER
P2
P2
PORT
PORT
34
3 4
34
TX
TX
RX
RX
1 2
12
12
TX
TX
RX
RX
IM-4MST
IM-4MSC
IM-4TX
IM-1GSXSCIM-1GTX
P3P1P4
P3P1P4
P3P1P4
PWR
PWR
PWR
P2
P2
P2
P2
34
34
4
3
TX
TX
TX
RX
RX
RX
12
12
12
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
If there are 2N EDS-726 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-726 (i.e., the EDS-726 unit directly opposite the Master).
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
COUPLERCF
MASTER
MODE
EtherDevice Switch
EDS-726
P3P1P4
PWR
PWR
PWR
PWR
PWR
PWR
RING
COUPLER
P2
P2
P2
P2
P2
PORT
IM-1GSXSCIM-1GTX
P2
PORT
3 4
34
34
34
4
34
3
TX
TX
TX
TX
TX
RX
RX
RX
RX
RX
1 2
12
12
12
12
12
TX
TX
RX
RX
IM-4MST
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4MSC
IM-4TX
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
PWR
PWR
PWR
PWR
PWR
PWR
RING
COUPLER
MASTER
COUPLERCF
P2
P2
P2
P2
P2
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
34
34
34
34
4
34
3
TX
TX
TX
TX
TX
RX
RX
RX
RX
RX
12
12
12
12
12
12
TX
TX
RX
RX
IM-4MST
IM-4MSC
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4TX
IM-1GSXSCIM-1GTX
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
PWR
PWR
PWR
PWR
PWR
PWR
RING
COUPLER
COUPLERCF
MASTER
P2
P2
P2
P2
P2
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
3 4
34
34
34
4
34
3
TX
TX
TX
TX
TX
RX
RX
RX
RX
RX
1 2
12
12
12
12
12
TX
TX
RX
RX
IM-4MST
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4MSC
IM-4TX
IM-1GSXSCIM-1GTX
When the number of EDS-726 units in the Turbo Ring is odd.
PWR1 FAULT
PWR2
STAT
COUPLERCF
MASTER
MODE
EtherDevice Switch
EDS-726
Master
FDX/HDX
SPEED
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
PWR
PWR
PWR
RING
COUPLER
P2
P2
PORT
PORT
3 4
3 4
34
TX
TX
RX
RX
1 2
1 2
12
TX
TX
RX
RX
IM-4TX
IM-4MST
IM-4MSC
IM-1GSXSCIM-1GTX
P3P1P4
P3P1P4
P3P1P4
PWR
PWR
PWR
P2
P2
P2
P2
3 4
3 4
4
3
TX
TX
TX
RX
RX
RX
12
12
12
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
If there are 2N+1 EDS-726 units (an odd number) in the Turbo Ring, with EDS-726 units and segments labeled counterclockwise, then segment N+1 will serve as the backup path.
For the example shown here, N=1, and therefore
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
COUPLERCF
MASTER
MODE
EtherDevice Switch
EDS-726
P3P1P4
PWR
PWR
PWR
PWR
PWR
PWR
RING
COUPLER
P2
P2
P2
P2
P2
PORT
IM-1GSXSCIM-1GTX
P2
PORT
3 4
3 4
3 4
4
3 4
34
3
TX
TX
TX
TX
TX
RX
RX
RX
RX
RX
1 2
1 2
12
12
12
12
TX
TX
RX
RX
IM-4TX
IM-4MST
IM-4MSC
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
PWR
PWR
PWR
RING
COUPLER
COUPLERCF
MASTER
P2
P2
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
3 4
3 4
34
TX
TX
RX
RX
1 2
1 2
12
TX
TX
RX
RX
IM-4TX
IM-4MST
IM-4MSC
IM-1GSXSCIM-1GTX
N+1=2.
P3P1P4
P3P1P4
P3P1P4
PWR
PWR
PWR
P2
P2
P2
3 4
3 4
4
3
TX
TX
TX
RX
RX
RX
12
12
12
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
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 figure below 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-726 units.
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EDS-726 Series User’s Manual Featured Functions
Ring Coupling
Switch B
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
PWR
PWR
PWR
PWR
PWR
PWR
RING
COUPLER
COUPLERCF
MASTER
P2
P2
P2
P2
P2
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
3 4
34
34
34
4
34
3
TX
TX
TX
TX
TX
RX
RX
RX
RX
RX
1 2
12
12
12
12
12
TX
TX
RX
RX
IM-4MST
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4MSC
IM-4TX
IM-1GSXSCIM-1GTX
Main Path
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
PWR
PWR
PWR
PWR
PWR
PWR
RING
COUPLER
COUPLERCF
MASTER
P2
P2
P2
P2
P2
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
3 4
34
34
34
4
34
3
TX
TX
TX
TX
TX
RX
RX
RX
RX
RX
1 2
12
12
12
12
12
TX
TX
RX
RX
IM-4MST
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4MSC
IM-4TX
IM-1GSXSCIM-1GTX
P3P1P4
P3P1P4
PWR
PWR
P2
34
34
TX
TX
RX
RX
12
12
IM-2MST/2TX
IM-2MSC/2TX
P3P1P4
PWR
P2
P2
4
3
TX
RX
12
IM-1LSC/3TX
Coupling Control Port
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
PWR
PWR
PWR
RING
COUPLER
COUPLERCF
MASTER
P2
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
34
34
34
TX
TX
RX
RX
12
12
12
TX
TX
RX
RX
IM-4MST
IM-4MSC
IM-4TX
IM-1GSXSCIM-1GTX
Switch A: "Coupler"
P3P1P4
P3P1P4
P3P1P4
PWR
PWR
PWR
P2
P2
P2
P2
34
34
4
3
TX
TX
TX
RX
RX
RX
12
12
12
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
Backup Path
Coupling Port
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
LNK/ACT
STAT
PWR
PWR
RING
COUPLER
COUPLERCF
MASTER
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
34
12
IM-4TX
IM-1GSXSCIM-1GTX
Switch C
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
PWR
PWR
PWR
PWR
P2
P2
P2
P2
P2
34
34
34
34
4
3
TX
TX
TX
TX
TX
RX
RX
RX
RX
RX
12
12
12
12
12
TX
TX
RX
RX
IM-4MST
IM-4MSC
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
PWR
PWR
PWR
RING
COUPLER
COUPLERCF
MASTER
P2
P2
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
3 4
34
34
TX
TX
RX
RX
1 2
1 2
12
TX
TX
RX
RX
IM-4MST
IM-4MSC
IM-4TX
IM-1GSXSCIM-1GTX
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
COUPLERCF
MASTER
MODE
EtherDevice Switch
EDS-726
P3P1P4
PWR
PWR
PWR
PWR
PWR
PWR
RING
COUPLER
P2
P2
P2
P2
P2
P2
PORT
PORT
3 4
34
34
34
4
34
3
TX
TX
TX
TX
TX
RX
RX
RX
RX
RX
1 2
1 2
12
12
12
12
TX
TX
RX
RX
IM-4MST
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4MSC
IM-4TX
IM-1GSXSCIM-1GTX
To support the Ring Coupling function, select one EDS-726 (e.g., Switch A in the above figure) in the Turbo Ring and enter the Communication Redundancy page to enable “Ring Coupling.” Select one port as “coupling port” and then connect any port of the opposing EDS-726 (e.g., Switch C) in the adjacent Turbo Ring. Select another port as “coupling control port,” and connect this port to any port of the adjacent EDS-726 (e.g., Switch B) in the same Turbo Ring. The “Coupler” switch (Switch A above) will monitor switch B’s order from the “coupling control port” to decide if the coupling port’s backup path should be recovered.
ATTENTION
You only need to enable the “Ring Coupling” function on one EDS-726 (not on the opposing EDS-726 or an adjacent EDS-726). The Redundant Port, Coupling Port, and Coupling Control Port must all be assigned to different ports.
NOTE
A particular EDS-726 does not need to be configured for both Ring Coupling and Ring Master.
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EDS-726 Series User’s Manual Featured Functions

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-726 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” to stopped transmission 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 field indicates the current status of coupling ports. The state is “Forwarding” for normal transmission, “Blocked” to stop transmission 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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EDS-726 Series User’s Manual Featured Functions
Redundancy Protocol
Setting Description Factory Default
Turbo Ring
RSTP (IEEE
802.1W/1D)
Set as Master
Setting Description Factory Default
Enable/Disable Select this EDS-726 as Master None
Redundant Ports
Setting Description Factory Default
1st Port
2nd Port
Enable Ring Coupling
Setting Description Factory Default
Enable/Disable Select this EDS-726 as Coupler None
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-726 to be one of the redundant ports.
Select any port of EDS-726 to be one of the redundant ports.
None
None
Port 7 if enabled for Turbo Ring
Port 8 if enabled for Turbo Ring
Coupling Ports
Setting Description Factory Default
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-726’s STP feature is disabled by default. To be completely effective, you must enable RSTP/STP on every EDS-726 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-726.
This feature is particularly helpful when EDS-726 ports connect to older equipment, such as legacy switches.
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.
Select any port of EDS-726 to be the coupling port
Select any port of EDS-726 to be the coupling control port
Port 5 if enabled for Ring Coupling
Port 6 if enabled for Ring Coupling
NOTE
The STP protocol is part of the IEEE Std 802.1D, 1998 Edition bridge specification. The explanation given below uses bridge instead of switch.
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EDS-726 Series User’s Manual Featured Functions
What is STP?
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
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.
Bridge A
LAN 2
Bridge C
LAN 3
LAN 1
Bridge B
LAN 2
Bridge C
LAN 3
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EDS-726 Series User’s Manual Featured Functions
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 assign a specific reference point on the network. When the most efficient path has been identified, the other paths are blocked. In the above 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-726 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
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Path Cost
802.1w-2001
EDS-726 Series User’s Manual Featured Functions
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:
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. The 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 can carry out automatic configuration and restore a link faster than STP.
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EDS-726 Series User’s Manual Featured Functions
STP Example
The LAN shown below 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.
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 for 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.
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EDS-726 Series User’s Manual Featured Functions
The following figure shows an example of a network that contains 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 means 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.
Switch A
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
PWR
PWR
PWR
PWR
PWR
P2
P2
P2
P2
P2
4
3 4
34
34
34
3
TX
TX
TX
TX
RX
12
TX
RX
IM-4MST
TX
RX
RX
RX
RX
1 2
12
12
12
TX
RX
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4MSC
100BaseTX full-duplex Link; only carries VLAN2 (path cost = 18)
100BaseTX full-duplex Link; only carries VLAN1 (path cost = 18)
LNK/ACT
STAT
PWR
RING
COUPLER
COUPLERCF
MASTER
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
34
12
IM-4TX
IM-1GSXSCIM-1GTX
Switch B Switch C
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
PWR
PWR
PWR
PWR
RING
COUPLER
COUPLERCF
MASTER
P2
P2
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
34
34
34
TX
TX
RX
RX
1
12
2
12
TX
TX
RX
RX
IM-4TX
IM-4MST
IM-4MSC
IM-1GSXSCIM-1GTX
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 Protocol parameters can be configured. A more detailed explanation of each parameter is given below the figure.
P3P1P4
P3P1P4
P3P1P4
PWR
PWR
P2
P2
P2
34
34
4
3
TX
TX
TX
RX
RX
RX
12
12
12
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
Block
802.1Q tagged,
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
PWR
RING
COUPLER
COUPLERCF
MASTER
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
34
12
IM-4TX
IM-1GSXSCIM-1GTX
P3P1P4
PWR
PWR
PWR
PWR
PWR
P2
P2
P2
P2
P2
34
34
34
34
4
3
TX
TX
TX
TX
RX
1
TX
RX
IM-4MST
TX
RX
RX
RX
RX
12
2
12
12
12
TX
RX
IM-4MSC
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
10BaseTx half-duplex Link carries VLAN1, 2 (path cost = 100)
At the top of this page, the user can check the “Current Status” of this function. For RSTP, you will see:
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EDS-726 Series User’s Manual Featured Functions
Now Active:
This field 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-726 is the Root of the Spanning Tree (the root is determined automatically).
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
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.
None
None
32768
Forwarding Delay
Setting Description Factory Default
Numerical value input by user
Hello time (sec.)
Setting Description Factory Default
Numerical value input by user
Max. Age (sec.)
Setting Description Factory Default
Numerical value input by user
The amount of time this device waits before checking to see if it should change to a different state.
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.
15 (sec.)
2
20
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EDS-726 Series User’s Manual Featured Functions
Enable STP per Port
Setting Description Factory Default
Enable/Disable Select to enable the port as a node on the
Spanning Tree topology.
Disabled
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 above: [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 inputting 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 Delay – 1 sec)
MOXA EDS-726’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 any number of ways. One solution is simply to increase the Forwarding Delay value to at least 11 sec.
HINT: Take 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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EDS-726 Series User’s Manual Featured Functions

Using Traffic Prioritization

EDS-726’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-726 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-726’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 predictable 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-726 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-726 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 and 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 across routed 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 because you can choose how your network prioritizes different 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-726 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-726 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. Because 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-726 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 which traffic queue the packet is mapped to.
Traffic Queues
The EDS-726 hardware has multiple traffic queues that allow packet prioritization to occur. Higher priority traffic can pass through the EDS-726 without being delayed by lower priority traffic. As each packet arrives in the EDS-726, 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-726 supports two different queuing mechanisms: 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-726 Series can inspect IEEE 802.1p/1Q layer 2 CoS tags, and even layer 3 TOS information, to provide a consistent classification of the entire network. EDS-726 Series’ QoS capability improves your industrial network’s performance and determinism for mission critical applications.
QoS Classification
MOXA EDS-726 supports inspection of layer 3 TOS and/or layer 2 CoS tag information to determine how to classify traffic packets.
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Queuing Mechanism
Setting Description Factory Default
Weighted Fair EDS-726 has 4 priority queues. In the weight 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 opportunity 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.
Inspect TOS
Setting Description Factory Default
Enable/Disable Check the checkbox to enable EDS-726 to inspect the
Type of Service (TOS) bits in IPV4 frame to determine the priority of each frame.
Weight Fair
Enable
NOTE
NOTE
Inspect COS
Setting Description Factory Default
Enable/Disable Check the check box to enable EDS-726 to inspect the
802.1p COS tag in the MAC frame to determine the priority of each frame.
Default Port Priority
Setting Description Factory Default
Low/Normal/ Medium/High
The priority of an ingress frame is determined in order by:
1. Inspect TOS
2. Inspect CoS
3. Default Port Priority
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.
Set the Port Default Priority of the ingress frames to different priority queues. If the received packets are not equipped with any tag information (CoS, TOS) the default port priority will take effect.
Enable
Normal
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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
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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

Using Virtual LAN

Setting up Virtual LANs (VLANs) on your EDS-726 increases the efficiency 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
Department 1 VLAN 1
3 4
5 6
7 8
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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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 much 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.
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 VLAN can be set up to contain only those devices that need to communicate with each other.
VLANs and MOXA EtherDevice Switch
Your EDS-726 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-726 to be placed in:
y Any one VLAN defined on the EDS-726. y Several VLANs at the same time using 802.1Q tagging.
The standard requires that you define the 802.1Q VLAN ID about each VLAN on your EDS-726 before the switch can use it to forward traffic:
Managing a VLAN
A new or initialized EDS-726 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 in this VLAN, and it is the only VLAN that allows you to access the management software of the EDS-726 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
Your EDS-726 supports 802.1Q VLAN tagging, a system that allows traffic for multiple VLANs 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 EDS-726, while inter-switch connections will be tagged members of all VLANs, defined as “Trunk Port” in EDS-726.
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The IEEE Std 802.1Q-1998 defines how VLANs operate within an open packet-switched network. An 802.1Q compliant packet carries additional information that allows a switch to determine which VLAN the port belongs to. 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 in which VLAN. To communicate between VLANs, a router must be used.
MOXA EDS-726 supports two types of VLAN port settings:
y Access Port: The port connects to a single device that is not tagged. The user must define the
default port PVID that assigns which VLAN the device belongs to. Once the ingress packet of this Access Port egresses to another Trunk Port (the port needs all packets to carry tag information), EDS-726 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-726

Device A
VLAN 5 Untagged Device
Port 1 (Access Port PVID 5)
Device B
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
y Port 2 connects a LAN with two untagged devices belonging to VLAN 2. One tagged device
Device I
VLAN 4 Untagged Device
Device H
VLAN 3 Untagged Device
Device G
Switch A Switch B
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
PWR
RING
COUPLER
COUPLERCF
MASTER
PORT
PORT
MODE
EtherDevice Switch
EDS-726
IM-1GSXSCIM-1GTX
P3P1P4
PWR
PWR
PWR
PWR
PWR
P2
P2
P2
P2
P2
P2
Port 3 (Trunk Port, PVID 1)
4
3 4
34
34
34
34
3
TX
TX
TX
TX
TX
RX
RX
RX
RX
RX
1 2
1 2
12
12
12
12
TX
TX
RX
RX
IM-4MST
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4MSC
IM-4TX
Port 2 (Trunk Port PVID 2, Fixed VLAN (Tagged)=3,4)
FDX/HDX
SPEED
PWR1 FAULT
PWR2
LNK/ACT
STAT
RING
COUPLER
COUPLERCF
MASTER
PORT
PORT
MODE
EtherDevice Switch
EDS-726
IM-1GSXSCIM-1GTX
Port 4 (Access Port PVID 2)
HUB
P3P1P4
P3P1P4
P3P1P4
P3P1P4
PWR
PWR
PWR
PWR
P2
P2
P2
3 4
34
34
34
TX
TX
TX
RX
RX
RX
1 2
1 2
12
12
TX
TX
RX
RX
IM-4MST
IM-2MST/2TX
IM-4MSC
IM-4TX
Port 7 (Access Port PVID 4)
P3P1P4
P3P1P4
PWR
PWR
P2
P2
P2
Port 5 (Access Port
4
34
3
TX
TX
RX
RX
12
12
PVID 3)
IM-2MSC/2TX
IM-1LSC/3TX
Device F
VLAN 2 Untagged Device
Port 6 (Access Port PVID 5)
VLAN 5 Untagged Device
Device E
Device D
VLAN 4 Tagged Device, VID 4
Device C
VLAN 2 Untagged Device
VLAN 3 Tagged Device, VID 3
“Access Port” with PVID 5.
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.
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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.
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 802.1Q VLAN

VLAN Port Settings
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To configure EDS-726 VLANs, use the VLAN Port Setting page to configure the ports.
Port Type
Setting Description Factory Default
Access This port type is used to connect single devices without
tags.
Trunk Select “Trunk” port type to connect another 802.1Q
VLAN aware switch or another LAN that combines tagged and/or untagged devices and/or other switches/hubs.
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-726 units.
Management VLAN ID
Setting Description Factory Default
VLAN ID ranges from 1 to 4094
Set the management VLAN of this EDS-726. 1
Access
Port PVID
Setting Description Factory Default
VID range from 1 to 4094
Port Fixed VLAN List (Tagged)
Setting Description Factory Default
VID range from 1 to 4094
Port 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.
1
None
None
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VLAN Table
In this table, you can review the VLAN groups that were created, Joined Access Ports, and Trunk Ports.
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-726.

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 subnetworks, 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
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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/subscriber communications 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.
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.
MASTER
EtherDevice Switch
PWR1 FAULT
FDX/HDX
SPEED
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
PWR
PWR
RING
COUPLER
COUPLERCF
P2
P2
PORT
PORT
MODE
EDS-726
34
34
TX
RX
1 2
12
TX
RX
IM-4MST
IM-4TX
IM-1GSXSCIM-1GTX
P3P1P4
PWR
PWR
PWR
PWR
P2
P2
P2
P2
4
3 4
34
34
3
TX
TX
TX
TX
RX
RX
RX
1 2
RX
12
12
12
TX
RX
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4MSC
Network with multicast filtering
Group 1 Multicast Stream Group 2 Multicast Stream
STAT
IGMP Group2
IGMP Group1 IGMP Group2 IGMP Group1
Hosts only receive dedicated traffic from other hosts belonging to the same group.
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Multicast Filtering and MOXA EtherDevice Switch
EDS-726 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.
Query Mode
Query mode allows the EDS-726 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-726 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
EDS-726 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 than 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)
EDS-726 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
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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. MOXA EDS-726 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.

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
Querier Interval
Setting Description Factory Default
Numerical value input by user
IGMP Snooping Enable
Setting Description Factory Default
Enable/Disable Click the checkbox to enable the IGMP Snooping
Set the query interval of the Querier function globally. Valid settings are from 20 to 600 seconds.
function globally.
125 seconds
Disabled
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IGMP Snooping
Setting Description Factory Default
Enable/Disable Click the checkbox to enable the IGMP Snooping
function per VLAN.
Static Multicast Router Port
Setting Description Factory Default
Select/Deselect Click the checkbox to select which ports will connect to
the multicast routers. It’s active only when IGMP Snooping is enabled.
Querier
Setting Description Factory Default
Enable/Disable Click the checkbox to enable EDS-726’s querier
function.
Enabled if IGMP Snooping Enabled Globally
Disabled
Enabled if IGMP Snooping is Enabled Globally
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
EDS-726 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.
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Add Static Multicast MAC

If required, MOXA EDS-726 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
VLA
Setting Description Factory Default
integer Input the number of the VLAN that the host with this
MAC Address belongs to.
Join Port
Setting Description Factory Default
Select/Deselect Checkmark the appropriate check boxes to select the
join ports for this multicast group.
None
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.
Port
Setting Description Factory Default
x-y Displays the module (x) and port No. by module (y) of
all ports that can enable the GMRP function
GMRP enable
Setting Description Factory Default
Enable/Disable Click the check box to enable the GMRP function for
the port listed in the Port column
Port Mode
Setting Description Factory Default
Forward All Select to forward all multicast frames unless an explicit
Static Filtering Entry specifies filtering (Add Static Multicast MAC).
Forward Unknown (Unregister)
Filter Unknown (Unregister)
Select to forward the multicast frames unless (1) an explicit Static Filtering Entry specifies filtering (Add Static Multicast MAC), or (2) an applicable Group Registration Entry specifies filtering.
Select to filter the multicast frames unless (1) an explicit Static Filtering Entry specifies filtering (Add Static Multicast MAC), or (2) an applicable Group Registration Entry specifies filtering.
None
Disable
Forward Unknown
Forward Unknown
Forward Unknown
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GMRP Table
EDS-726 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-726 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.

Configuring Bandwidth Management

Broadcast Storm Protection
Setting Description Factory Default
Enable/Disable
Enable or disable the Broadcast Storm Protection for broadcast and unknown unicast packets globally.
Check the check box to include multicast packets when enabled for Broadcast Storm Protection.
N/A
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Traffic Rate Limiting Settings
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

EDS-726 provides two kinds of Port-Base Access Control. One is IEE 802.1X and the other is Static Port Lock.
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.
Static Port Lock
EDS-726 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 hackers and careless usage.
The IEEE802.1X 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 responds to the requests from the switch.
Authentication server: The server that performs the actual authentication of the supplicant.
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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.
EDS-726 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 EDS-726 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 authenticator. 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
FDX/HDX
SPEED
PWR1 FAULT
PWR2
P3P1P4
P3P1P4
P3P1P4
P3P1P4
P3P1P4
LNK/ACT
STAT
PWR
PWR
RING
COUPLER
COUPLERCF
MASTER
P2
PORT
PORT
MODE
EtherDevice Switch
EDS-726
34
12
IM-4TX
IM-1GSXSCIM-1GTX
P3P1P4
PWR
PWR
PWR
PWR
P2
P2
P2
P2
3 4
TX
RX
1 2
TX
RX
IM-4MST
P2
3 4
3 4
4
3 4
3
TX
TX
TX
TX
RX
RX
RX
RX
1 2
12
12
12
TX
RX
IM-2MST/2TX
IM-2MSC/2TX
IM-1LSC/3TX
IM-4MSC
server
(RADIUS)
EAP-Request/Identity
EAP-Response/Identity
EAP-Request/OTP
EAP-Response/OTP
EAP-Success
RADIUS Access-Request
RADIUS Access-Challenge
RADIUS Access-Request
RADIUS Access-Accept
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-Challenge” is supported. If the Local User Database is used, this step is skipped.
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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.
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” by the received indication from the
authentication server.

Configuring IEEE 802.1X

802.1X
Setting Description Factory Default
Enable/Disable Click the checkbox(es) under the 802.1X column to
enable IEEE 802.1X for one or more ports. All end stations must enter usernames and passwords before access to these ports is allowed.
Disable
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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 using an external RADIUS
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.”
server as the authentication database the 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
Local
Local
Shared Key
Setting Description Factory Default
alphanumeric (Max. 40 characters)
Re-Auth Period
Setting Description Factory Default
Enable/Disable Select to require re-authentication of the client after a
Re-Auth
Setting Description Factory Default
Numerical (60-65535 sec.)
A key to be shared between the external RADIUS server and EDS-726. 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.
None
Disable
3600 seconds
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802.1X Re-Authentication
EDS-726 can force connected devices to be re-authorized manually.
802.1X Re-Authentication
Setting Description Factory Default
Enable/Disable Click the check box 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.
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Local User Database Setup
Setting Description Factory Default
User Name (Max. 30 characters)
Password (Max. 16 characters)
Description (Max. 30 characters)
User Name for Local User Database None
Password for Local User Database None
Description for Local User Database None
NOTE
802.1X Table
The user name for the Local User Database is case-insensitive.
The port status will show authorized or unauthorized.

Static Port Lock

MOXA EDS-726 also supports adding multicast groups manually if required.
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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. 1-1
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. MOXA EDS-726 supports different approaches to warn engineers automatically, such as email and relay output. It also supports two digital inputs to integrate sensors into your system to automate alarms by 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 EDS-726’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(es) to which warning messages will be sent.
3. Activate your settings and if necessary, test the email
After configuring and activating your EDS-726’s Event Types 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.

Email Alarm Events Settings

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Event Types
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 Event Warning e-mail is sent when…
Switch Cold Start Power is cut off and then reconnected.
Switch Warm Start EDS-726 is rebooted, such as when network
parameters are changed (IP address, subnet mask, etc.).
Power Transition (OnÆOff) EDS-726 is powered down. Power Transition (OffÆOn) EDS-726 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 Any configuration item has been changed.
Comm. Redundancy Topology Changed
Authentication Failure An incorrect password is entered.
Port Event Warning e-mail is sent when…
Link-on The port is connected to another device.
Link-off
Traffic-Overload
Traffic-Threshold (%)
Traffic-Duration (sec.)
If any Spanning Tree Protocol switches have changed their position (applies only to the root of the tree). If 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).
The port’s traffic surpasses the Traffic-Threshold for that port (provided this item is Enabled).
Enter a nonzero 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
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 nonzero Traffic-Threshold percentage, as well as a Traffic-Duration between 1 and 300 seconds.
Warning e-mail messages will have sender given in the form:
Moxa_EtherDevice_Switch_0001@Switch_Location
where Moxa_EtherDevice_Switch is the default Switch Name, 0001 is EDS-726’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.
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Email Settings

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 Charters Your email account. None
Password Setting
Setting Description Factory Default
Disable/Enable to change Password
Old Password Type the current password when changing the password None
New Password Type new password when enabled to change password;
Retype Password If you type a new password in the Password field, you
Email Address
Setting Description Factory Default
Max. 30 characters
Send Test Email
After finishing with the email settings, you should first press the “Activate” button to activate those settings, and then press the “Send Test Email” button to verify that the settings are correct.
To reset the Password from the Web Browser interface, click the Change password check-box, type the Old Password, type the New Password, retype the New password, and then click on Activate; Max. 45 Characters.
Max. 45 Characters.
will be required to retype the password in the Retype new password field before updating the new password.
You can set up to 4 email addresses to receive alarm emails from EDS-726.
Disable
None
None
None
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NOTE
Auto warning e-mail messages will be sent through an authentication protected SMTP server that supports the CRAM-MD5, LOGIN, and PAIN 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-726’s Relay Event Types.

Relay Alarm Events Settings

Event Types
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.
MOXA EDS-726 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.
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System Event Warning Relay output is triggered when…
Power Transition (OnÆOff) EDS-726 is powered on. Power Transition (OffÆOn) EDS-726 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
Port Event Warning e-mail is sent when…
Link-on The port is connected to another device.
Link-off
Traffic-Overload
Traffic-Threshold (%)
Traffic-Duration (sec.)
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 nonzero 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 nonzero Traffic-Threshold percentage, as well as a Traffic-Duration between 1 and 300 seconds.
Override relay alarm settings
Click the checkbox to override the relay warning setting temporarily. Releasing the relay output will allow administrators to fix any problems with the warning condition.

Relay Alarm List

Use this table to see if any relay alarms have been issued.
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Using Line-Swap-Fast-Recovery

The Line-Swap Fast Recovery function, which is enabled by default, allows EDS-726 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 shown below.

Configuring Line-Swap Fast Recovery

Enable Line-Swap-Fast-Recovery
Setting Description Factory Default
Enable/Disable Check-mark the check box to enable the
Line-Swap-Fast-Recovery function
Enable

Using Set Device IP

To reduce the effort required to set up IP addresses, the EDS-726 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 EDS-726 to assign specific IP addresses automatically to connected devices that are equipped with DHCP Client or RARP protocol. In effect, EDS-726 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, EDS-726 sends the device the desired IP address.
Take the following steps to use the Set device IP function:
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STEP 1—set up the connected devices Set up those Ethernet-enabled devices connected to
EDS-726 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 which of EDS-726’s ports your Ethernet-enabled devices will be connected to. You will need to set up each of these ports separately, as described in the following step.
STEP 2 Configure EDS-726’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 on the Activate button.
When using the Console utility, activate by first highlighting 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

MOXA EDS-726 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.
Take the following steps to set up the Mirror Port function:
STEP 1 Configure EDS-726’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 on the Activate button.
When using the Console utility, activate by first highlighting 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 EDS-726’s port.
y Bi-directional
Select this option to monitor data packets both coming into, and being sent out through, EDS-726’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 EDS-726 itself. In this way, the user can essentially “sit on top of EDS-726” 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 on Ping when using the Web Browser interface.

Using Monitor

You can monitor statistics in real time from EDS-726’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 of EDS-726’s 8 ports. Click on one of the four options—All 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 EDS-726, RX Packets are packets received from connected devices, and Error Packets are packets that did not pass TCP/IP’s error checking algorithm. The All Packets option displays a graph that combines TX, RX, and Error Packet activity. The four graphs (All Packets, TX Packets, RX Packets, and Error Packets) have the same form, so we only show the All Packets graph. 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 displayed on the same graph: Uni-cast packets (in red color), Multi-cast packets (in green color), and Broad-cast 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 Ports or Porti, in which i= 1, 2, …, 8, from the left pull-down list. The Porti 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. 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 red colored bar shows Uni-cast packets, the green colored bar shows Multi-cast packets, and the blue colored bar shows Broad-cast packets. The graph is updated every few seconds, allowing the user to analyze data transmission activity in real-time.
The All Ports option is

Using the MAC Address Table

This section explains the information provided by EDS-726’s MAC address table.
The MAC Address table can be configured to display the following EDS-726 MAC address groups.
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ALL Select this item to show all EDS-726 MAC addresses
ALL Learned Select this item to show all EDS-726 Learned MAC addresses
ALL Static Lock Select this item to show all EDS-726 Static Lock MAC addresses
ALL Static Select this item to show all EDS-726 Static/Static Lock /Static
Multicast MAC addresses
ALL Static Multicast
Port x Select this item to show all MAC addresses of dedicated ports
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
Priority This field shows the priority of this MAC address
Select this item to show all EDS-726 Static Multicast MAC addresses

Using Event Log

Bootup This field shows how many times the EDS-726 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 occurred.
The system startup time related to this event.
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4

Chapter 4 EDS Configurator GUI

EDS Configurator is a comprehensive Windows-based GUI that is used to configure and maintain multiple EDS-726 switches. A suite of useful utilities is available to help you locate EDS-726 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-726 whose IP address is known, modify the network configurations of one or multiple EDS-726 switches, and update the firmware of one or more EDS-726 switches. EDS Configurator is designed to provide you with instantaneous control of all of your EDS-726 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-726 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-726 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 on 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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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-726 switches one at a time. Note that the search is conducted by IP address, so you should be able to locate any EDS-726 that is properly connected to your
LAN, WAN, or even the Internet. Start by clicking on the Specify by IP address icon 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 by
Once the search is complete, the Configurator window will add the switch to the list of switches.

Upgrade Firmware

Keep your EDS-726 up to date with the latest firmware from Moxa. Take the following steps to upgrade the firmware:
1. Download the updated firmware (*.rom) file from the Moxa website (www.moxa.com).
2. Click on the switch (from the MOXA EtherDevice Server Configurator window) whose
firmware you wish to upgrade to highlight it.
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3. Click on the Upgrade Firmware toolbar icon , or select Upgrade under the Firmware
menu. 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 on the correct “*.rom” file (eds.rom in the example shown below) to select the file. Click on Open to activate the upgrade process.

Modify IP Address

You may use the Modify IP Address function to reconfigure EDS-726’s network settings. Start by clicking on the Modify IP address icon
Configuration menu.
, or by selecting Modify IP address under the
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.
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Export Configuration

The Export Configuration utility is used to save the entire configuration of a particular EDS-726 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 on the Export toolbar icon Configuration 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 on Open.
2. Click on OK when the Export configuration to file OK message appears.
or select Export Configuration from the
3. You may use a standard text editor, such as Notepad under Windows, to view and modify the
newly created configuration file.
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Import Configuration

The Import Configuration function is used to import an entire configuration from a text file to EDS-726. This utility can be used to transfer the configuration from one EDS-726 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. Take 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 on the Import toolbar icon from 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 on Open to initiate the import procedure.
, or select Import Configuration
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 on OK to accept the changes.
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4. Click on 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-726 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
EDS-726 is not password protected, and “Broadcast Search” was used to locate it.
y Fixed
EDS-726 is not password protected, and “Search by IP address” was used to locate it manually.
y Locked Fixed
EDS-726 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
EDS-726 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-726 will not require re-entering the server password.
Follow the steps given below to unlock a locked EDS-726 (i.e., an EDS-726 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 on 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
4-7
EDS-726 Series User’s Manual EDS Configurator GUI
2. When the Unlock status window reports Progress as OK, click on 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
MOXA EDS-726 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 MOXA EDS-726 series support are:
MIB II.1 – System Group
sysORTable
MIB II.2 – Interfaces Group
ifTable
A
A
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-726 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
A-2
EDS-726 Series User’s Manual MIB Groups
EDS-726 also provides a private MIB file, located in the file “MOXA-EDS726-MIB.my” on the EDS-726 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
8. CF Save
9. CF Load
10. Module Inserted
11. Module Removed
A-3
Appendix B Specifications
Modular Managed Switch System, EDS-72610G
Modular Managed Switch System with 6 slots, and up to 26 ports.
FDX/HDX
MODE
LNK/ACT
SPEED
RING
PORT
COUPLER
PORT
PWR1 FAULT
STAT
MASTER
EtherDevice Switch
PWR2
COUPLER CF
EDS-726
B
B
Technology
Standards IEEE802.3, 802.3u, 802.3x, 802.1D, 802.1w, 802.1Q,
802.1p, 802.1X, 802.3ad, 802.3z
Protocols IGMP Snooping, GMRP, GVRP, SNMP V1/V2C/V3, DHCP
Server/Client, BOOTP, TFTP, SNTP, SMTP, RARP, RMON and EDS-SNMP OPC Server Pro (Optional)
MIB MIB-II, Ethernet-Like MIB, P-BRIDGE MIB, Q-BRIDGE
MIB, Bridge MIB, RSTP MIB, RMON MIB Groups 1, 2.3, 9 (available soon)
Flow Control IEEE802.3x flow control/back pressure
Interface
Fast Ethernet 6 slots for any combination of 4-port Interface Modules with
10/100BaseT(X) or 100BaseFX
Gigabit Ethernet 2 sockets for any combination of 1-port Interface Modules
with 10/100/1000BaseT(X), 1000BaseSX, 1000BaseLX, 1000BaseLHX, 1000BaseZX
CompactFlash Interface Present
Console RS-232 (RJ45)
System LED Indicators STAT, PWR1, PWR2, FAULT, MASTER, COUPLER, CF
Module LED Indicators LNK/ACT, FDX/HDX, RING PORT, COUPLER, PORT,
SPEED
Alarm Contact Two relay outputs with current carrying capacity of 1A @ 24
VDC
EDS-726 Series User’s Manual Specifications
Digital Inputs Two inputs with the same ground, but electrically isolated
from the electronics. For state “1”: +13 to +30V For state “0”: -30 to +3V Max. input current: 8 mA
Power
Input Voltage 24 VDC (12 to 45 VDC), redundant dual inputs
Connection Two removable 6-pin terminal blocks
Power Consumption EDS-72610G 21.5W
IM-4TX 2.5W IM-2MSC/2TX 5W IM-2MST/2TX 5W IM-2SSC/2TX 5W IM-4MSC 7.2W IM-4MST 7.2W IM-4SSC 7.2W IM-1LSC/3TX 4W IM-1GTX 2.5W IM-1GSXSC 1.5W IM-1GLXSC 1.5W IM-1GLHXSC 1.5W IM-1GZXSC 1.5W
Overload Current Protection Present
Reverse Polarity Protection Present
Mechanical
Casing IP30 protection
Dimensions
362 x 146 x 128 mm (W x H x D)
Installation DIN-Rail, Wall Mounting (optional kit)
Gigabit Ethernet Interface Module, IM series
IM-1GTX: Interface Module with 1 10/100/1000BaseT(X) port, RJ45 connector. IM-1GSXSC: Interface Module with 1 1000BaseSX port, SC connector. IM-1GLXSC: Interface Module with 1 1000BaseLX port, SC connector. IM-1GLHXSC: Interface Module with 1 1000BaseLHX port, SC connector, 40 km. IM-1GZXSC: Interface Module with 1 1000BaseZX port, SC connector, 80 km.
IM-1GTX
IM-1GTX
IM-1GSXSC
IM-1GSXSC,
IM-1GLXSC,
IM-1GLHXSC,
IM-1GZXSC
B-2
EDS-726 Series User’s Manual Specifications
Interface
LED Indicators Port Status
RJ45 Ports 10/100/1000BaseT(X) auto negotiation speed, and auto
MDI/MDI-X connection
Distance 100 m
Fiber Ports 1000BaseSX/LX/LHX/ZX (SC connector)
Optical Fiber
Distance
Multi mode IM-1GSXSC
0 to 500 m, 850 nm (50/125 μm, 400 MHz*km) 0 to 275 m, 850 nm (62.5/125 μm, 200 MHz*km) IM-1GLXSC 0 to 1100 m, 1310 nm (50/125 μm, 800 MHz*km) 0 to 550 m, 1310 nm (62.5/125 μm, 500 MHz*km)
Single mode IM-1GLXSC
0 to 10 km, 1310 nm (9/125 μm, 3.5 PS/(nm*km)) IM-1GLHXSC 0 to 40 km, 1310 nm (9/125 μm, 19 PS/(nm*km)) TBD IM-1GZXSC 0 to 80 km, 1550 nm (9/125 μm, 19 PS/(nm*km)) TBD
Min. TX Output
1M-GSX 1M-1GLX 1M-1GLHX 1M-1GZX
Max. TX Output
1M-GSX 1M-1GLX 1M-1GLHX 1M-1GZX
Sensitivity
1M-GSX 1M-1GLX 1M-1GLHX 1M-1GZX
Mechanical
Dimensions
-9.5 dB
-9.5 dB
-4 dB 0 dB
-4 dB
-3 dB +3 dB +5 dB
0 to -18 dB
-3 to -20 dB
-3 to -23 dB
-3 to -23 dB
24 x 66 x 101 mm (W x H x D)
Fast Ethernet Interface Module, IM series
IM-4TX: Interface Module with 4 10/100BaseT(X) ports, RJ45 connectors. IM-4MSC: Interface Module with 4 multi mode 100BaseFX ports, SC connectors. IM-4MST: Interface Module with 4 multi mode 100BaseFX ports, ST connectors. IM-4SSC: Interface Module with 4 single mode 100BaseFX ports, 40 km SC connectors. IM-2MSC/2TX: Interface Module with 2 multi mode 100BaseFX ports, SC connectors, and 2
10/100BaseT(X) ports, RJ45 connectors.
B-3
EDS-726 Series User’s Manual Specifications
IM-2MST/2TX: Interface Module with 2 multi mode 100BaseFX ports, ST connectors, and 2 10/100BaseT(X) ports, RJ45 connectors.
IM-2SSC/2TX: Interface Module with 2 single mode 100BaseFX ports, 40 km SC connectors, and 2 10/100BaseT(X) ports, RJ45 connectors.
IM-1LSC/3TX: Interface Module with 1 single mode 100BaseFX port, 80 km SC connector and 3 10/100BaseT(X) ports, RJ45 connectors.
P3P1P4
PWR
P2
34
12
IM-4TX
IM-4TX IM-4MSC,
P3P1P4
PWR
P2
3 4
TX
RX
12
TX
RX
IM-4MSC
IM-4SSC,
P3P1P4
PWR
P2
3 4
TX
RX
12
TX
RX
IM-4MST
IM-4MST IM-2MSC/
P3P1P4
PWR
P2
3 4
TX
RX
12
IM-2MSC/2TX
2TX
P3P1P4
PWR
P2
3 4
TX
RX
12
IM-2MST/2TX
IM-2MST/
2TX
P3P1P4
PWR
P2
4
3
TX
RX
12
IM-1LSC/3TX
IM-1LSC/
3TX
IM-2SSC/
2TX
Interface
LED Indicators PWR, P1, P2, P3, P4 port status
RJ45 Ports 10/100/1000BaseT(X) auto negotiation speed, F/H duplex
mode, and auto MDI/MDI-X connection
Distance 100 m
Fiber Ports 100BaseFX ports (SC/ST connector)
Optical Fiber
Distance
Multi mode: IM-4MSC, IM-4MST, IM-2MSC/2TX, IM-2MST/2TX
0 to 5 km, 1310 nm (50/125 μm, 800 MHz*km) 0 to 4 km, 1310 nm (62.5/125 μm, 500 MHz*km)
Single mode: IM-4SSC
0 to 40 km, 1310 nm (9/125 μm, 3.5 PS/(nm*km)) IM-1LSC/3TX 0 to 80 km, 1550 nm (9/125 μm, 19 PS/(nm*km))
Min. TX Output
Multi mode: -20 dBm
Single mode: 0 to 40 km, -5 dBm
0 to 80 km, -5 dBm
Max. TX Output
Multi mode: -14 dBm
Single mode: 0 to 40 km, 0 dBm
0 to 80 km, 0 dBm
Sensitivity
Multi mode: -34 to -30 dBm
Single mode: -36 to -32 dBm
B-4
EDS-726 Series User’s Manual Specifications
Mechanical
Casing IP30 protection
Dimensions
Environmental
Operating Temperature 0 to 60°C (32 to 140°F)
Storage Temperature -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Regulatory Approvals
Safety UL60950, UL 508, CSA C22.2 No. 60950, EN60950
Hazardous Location UL/cUL Class I, Division 2, Groups A, B, C and D
EMI
EMS EN61000-4-2 (ESD), Level 3
Shock IEC60068-2-27
Free Fall IEC60068-2-32
Vibration IEC60068-2-6
WARRANTY
40 x 130 x 100 mm (W x H x D)
(Pending)
(Pending) ATEX Class I, Zone 2, EEx nC IIC (Pending)
FCC Part 15, CISPR (EN55022) class A
EN61000-4-3 (RS), Level 3 EN61000-4-4 (EFT), Level 3 EN61000-4-5 (Surge), Level 3 EN61000-4-6 (CS), Level 3 EN61000-4-8 EN61000-4-11 EN61000-4-12
5 years
B-5
C
C
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-726 Series User’s Manual Service Information

MOXA Internet Services

Customer satisfaction is our number one concern, and 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................................
...............................
World Wide Web (WWW) Site for product information:
...............................
support@moxanet.com (Worldwide) support@moxa.com (The Americas)
http://www.moxa.com
C-2
EDS-726 Series User’s Manual Service Information

Problem Report Form

MOXA EDS-726 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.
C-3
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