Moxa Technologies PT-7528 User Manual

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PT-7528 Series User’s Manual

Second Edition, August 2014

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PT-7528 Series User’s Manual

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Table of Contents

1. About this Manual ............................................................................................................................. 1-1

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

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

Configuration by Telnet Console ........................................................................................................... 2-4

Configuration by Web Browser ............................................................................................................. 2-6

Disabling Telnet and Browser Access ..................................................................................................... 2-7

3. Quick Settings ................................................................................................................................... 3-1

Quick Settings .................................................................................................................................... 3-2

System Time .............................................................................................................................. 3-2

QoS ........................................................................................................................................... 3-3

Redundancy ................................................................................................................................ 3-4

VLAN ......................................................................................................................................... 3-4

Mirror ........................................................................................................................................ 3-6

IP .............................................................................................................................................. 3-7

Summary .......................................................................................................................................... 3-8

Finish ................................................................................................................................................ 3-8

4. Advanced Settings............................................................................................................................. 4-1

Configuring Advanced Settings ............................................................................................................. 4-2

System Identification ................................................................................................................... 4-2

Password.................................................................................................................................... 4-3

Accessible IP List ......................................................................................................................... 4-4

Port Settings ............................................................................................................................... 4-5

Network Parameters .................................................................................................................... 4-6

GARP Timer Parameters ............................................................................................................... 4-8

System Time Settings .................................................................................................................. 4-9

IEEE 1588 PTP .......................................................................................................................... 4-10

System File Update .................................................................................................................... 4-15

Restart ..................................................................................................................................... 4-17

Reset to Factory Default ............................................................................................................. 4-17

Loop Protection ................................................................................................................................ 4-17

Using Port Trunking .......................................................................................................................... 4-18

The Port Trunking Concept ......................................................................................................... 4-18

Port Trunking Settings ............................................................................................................... 4-18

Configuring SNMP ............................................................................................................................. 4-20

SNMP Read/Write Settings .......................................................................................................... 4-21

Trap Settings ............................................................................................................................ 4-22

Private MIB Information ............................................................................................................. 4-23

Using PoE (PoE Models Only) .............................................................................................................. 4-23

Type 1 ..................................................................................................................................... 4-23

Type 2 ..................................................................................................................................... 4-27

Using Traffic Prioritization .................................................................................................................. 4-35

The Traffic Prioritization Concept ................................................................................................. 4-35

Configuring Traffic Prioritization .................................................................................................. 4-37

QoS ......................................................................................................................................... 4-37

Using Virtual LAN .............................................................................................................................. 4-41

The Virtual LAN (VLAN) Concept .................................................................................................. 4-41

Sample Applications of VLANs Using Moxa Switches ....................................................................... 4-43

Configuring Virtual LAN .............................................................................................................. 4-44

QinQ Setting ............................................................................................................................. 4-46

VLAN Table ............................................................................................................................... 4-47

Using Multicast Filtering ..................................................................................................................... 4-48

The Concept of Multicast Filtering ................................................................................................ 4-48

Configuring IGMP Snooping ........................................................................................................ 4-51

Current Active IGMP Streams ...................................................................................................... 4-53

Static Multicast MAC Addresses ................................................................................................... 4-54

Configuring GMRP...................................................................................................................... 4-55

GMRP Table .............................................................................................................................. 4-55

Multicast Filtering Behavior ......................................................................................................... 4-56

Using Bandwidth Management ............................................................................................................ 4-56

Configuring Bandwidth Management ............................................................................................ 4-56

Security ........................................................................................................................................... 4-60

User Login Authentication – User Login Settings ............................................................................ 4-60

User Login Authentication – Auth Server Setting ........................................................................... 4-60

Authentication Certificate ................................................................................................................... 4-61

Using Port Access Control .................................................................................................................. 4-61

Static Port Lock ......................................................................................................................... 4-61

IEEE 802.1X ............................................................................................................................. 4-62

Configuring Static Port Lock ........................................................................................................ 4-62

Configuring IEEE 802.1X ............................................................................................................ 4-63

Using Auto Warning .......................................................................................................................... 4-65

Configuring Email Warning ......................................................................................................... 4-65

Configuring Relay Warning ......................................................................................................... 4-68

Using Line-Swap-Fast-Recovery .......................................................................................................... 4-69

Configuring Line-Swap Fast Recovery .......................................................................................... 4-70

Using Set Device IP ........................................................................................................................... 4-70

Configuring Set Device IP ........................................................................................................... 4-71

Using Diagnosis ................................................................................................................................ 4-73

Mirror Port ................................................................................................................................ 4-73

Ping ......................................................................................................................................... 4-74

LLDP Function ........................................................................................................................... 4-75

Using Monitor ................................................................................................................................... 4-76

Monitor by Switch ...................................................................................................................... 4-76

Monitor by Port ......................................................................................................................... 4-76

Monitor by SFP .......................................................................................................................... 4-77

DDM ........................................................................................................................................ 4-77

Using the MAC Address Table ............................................................................................................. 4-78

Using Access Control List ................................................................................................................... 4-79

The ACL Concept ....................................................................................................................... 4-79

Access Control List Configuration and Setup ................................................................................. 4-80

Using Event Log ............................................................................................................................... 4-84

Using Syslog .................................................................................................................................... 4-84

Using HTTPS/SSL .............................................................................................................................. 4-85

Using Industrial Protocol .................................................................................................................... 4-86

EtherNet/IP .............................................................................................................................. 4-86

Modbus/TCP ............................................................................................................................. 4-86

MMS ........................................................................................................................................ 4-87

5. EDS Configurator GUI ........................................................................................................................ 5-1

Starting EDS Configurator .................................................................................................................... 5-2

Broadcast Search ................................................................................................................................ 5-2

Search by IP Address .......................................................................................................................... 5-3

Upgrade Firmware .............................................................................................................................. 5-3

Modify IP Address ............................................................................................................................... 5-4

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

Import Configuration ........................................................................................................................... 5-5

Unlock Server .................................................................................................................................... 5-6

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

1. About this Manual

Thank you for purchasing a Moxa managed Ethernet switch. Read this user’s manual to learn how to connect

your Moxa switch to Ethernet-enabled devices used for industrial applications.

The following two chapters are covered in this user manual:



Chapter 2: Getting Started

This chapter explains the initial installation process for a Moxa switch. There are three ways to access a

Moxa switch’s configuration settings: serial console, Telnet console, and web console.



Chapter 3: Featured Functions

This chapter explains how to access a Moxa switch’s various configuration, monitoring, and administration

functions. These functions can be accessed by serial, Telnet, or web console. The web console is the most

user-friendly way to configure a Moxa switch. In this chapter, we use the web console interface to introduce

the functions.

2. Getting Started

In this chapter we explain how to install a Moxa switch for the first time. There are three ways to access the

Moxa switch’s configuration settings: serial console, Telnet console, or web console. If you do not know the

Moxa switch’s IP address, you can open the serial console by connecting the Moxa switch to a PC’s COM port

with a short serial cable. You can open the Telnet or web console over an Ethernet LAN or over the Internet.

The following topics are covered in this chapter:



Serial Console Configuration (115200, None, 8, 1, VT100)



Configuration by Telnet Console



Configuration by Web Browser



Disabling Telnet and Browser Access

PT-7528 Series Getting Started

2-2

Serial Console Configuration (115200, None, 8, 1, VT100)

NOTE

• You cannot connect to the serial and Telnet console at the same time.

• You can connect to the web console and another console (serial or Telnet) at the same time. However, we

strongly recommend that you do NOT do so. Following this advice will allow you to maint

ain better control

over the Moxa switch’s configuration.

NOTE

We recommend

using PComm Terminal Emulator

when opening the serial console. This software can be

downloaded free of charge from the Moxa website.

Before running PComm Terminal Emulator, use an RJ45 to DB9-F (or RJ45 to DB25-F) cable to connect the

Moxa switch’s 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, open the Moxa switch’s serial console as follows:

1. From the Windows desktop, click Start  Programs  PComm Lite 1.3  Terminal Emulator.

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

3. The Property window should open. On the Communication Parameter tab for Ports, select the COM

port that is being used for the console connection. Set the other fields as follows: 115200 for Baud Rate,

8 for Data Bits, None for Parity, and 1 for Stop Bits.

PT-7528 Series Getting Started

2-3

4. On the Terminal tab, select VT100 for Terminal Type, and then click OK to continue.

5. In the terminal window, the Moxa switch will prompt you to select a terminal type. Enter 1 to select

ansi/vt100 and then press Enter.

6. The serial console will prompt you to log in. Press Enter and select admin or user. Use the down arrow key

on your keyboard to select the Password field and enter a password if desired. This password will be

required to access any of the consoles (web, serial, Telnet). If you do not wish to create a password, leave

the Password field blank and press Enter.

7. The Main Menu of the Moxa switch’s serial console should appear. (In PComm Terminal Emulator, you can

adjust the font by selecting Font… from the Edit menu.)

PT-7528 Series Getting Started

2-4

8. Use the following keys on your keyboard to navigate the Moxa switch’s serial console:

Key Function

Up, down, right, left arrow keys,

Tab

Move the onscreen cursor

Enter Display and select options

Space

Toggle options

Esc Previous menu

Configuration by Telnet Console

Opening the Moxa switch’s Telnet or web console over a network requires that the PC host and Moxa switch are

on the same logical subnet. You may need to adjust your PC host’s IP address and subnet mask. By default, the

Moxa switch’s IP address is 192.168.127.253 and the Moxa switch’s subnet mask is 255.255.255.0 (referred to

as a Class B network). Your PC’s IP address must be set to 192.168.xxx.xxx if the subnet mask is 255.255.0.0,

or to 192.168.127.xxx if the subnet mask is 255.255.255.0.

NOTE

To connect to the Moxa switch’s Telnet or web console, your PC host and the Moxa switch must be on the same

logical subnet.

NOTE

When connecting to the Moxa switch’s Telnet or web console, first connect one of the Moxa switch’s Ethernet

ports to your Ethernet LAN, or directly to your PC’s Ethernet port. You may use either a straight-through or

cross

-over Ethernet cable.

NOTE

The Moxa switch’s default IP address is 192.168.127.253.

After making sure that the Moxa switch is connected to the same LAN and logical subnet as your PC, open the

Moxa switch’s Telnet console as follows:

1. Click Start  Run from the Windows Start menu and then Telnet to the Moxa switch’s IP address from the

Windows Run window. You may also issue the Telnet command from a DOS prompt.

2. In the terminal window, the Telnet console will prompt you to select a terminal type. Type 1 to choose

ansi/vt100, and then press Enter.

PT-7528 Series Getting Started

2-5

3. The Telnet console will prompt you to log in. Press Enter and then select admin or user. Use the down

arrow key on your keyboard to select the Password field and enter a password if desired. This password

will be required to access any of the consoles (web, serial, Telnet). If you do not wish to create a password,

leave the Password field blank and press Enter.

4. The Main Menu of the Moxa switch’s Telnet console should appear.

5. In the terminal window, select Preferences… from the Terminal menu on the menu bar.

6. The Terminal Preferences window should appear. Make sure that VT100 Arrows is checked.

7. Use the following keys on your keyboard to navigate inside the Moxa switch’s Telnet console:

Key Function

Up, down, right, left arrow keys,

Tab

Move the onscreen cursor

Enter Display and select options

Space

Toggle options

Esc Previous menu

NOTE

The Telnet console looks and operates in precisely the same manner as the serial console.

PT-7528 Series Getting Started

2-6

Configuration by Web Browser

The Moxa switch’s web console is a convenient platform for modifying the configuration and accessing the

built-in monitoring and network administration functions. You can open the Moxa switch’s web console using a

standard web browser, such as Internet Explorer.

NOTE

To connect to the Moxa switch’s Telnet or web console, your PC host and the Moxa switch must be on the same

logical subnet.

NOTE

If the Moxa switch is configured for other VLAN settings, you must make sure your PC host is on the

managemen

t VLAN.

NOTE

When connecting to the Moxa switch’s Telnet or web console, first connect one of the Moxa switch’s Ethernet

ports to your Ethernet LAN, or directly to your PC’s Ethernet port. You may use either a straight-through or

cross

-over Ethernet cable.

NOTE

The Moxa switch’s default IP address is 192.168.127.253.

After making sure that the Moxa switch is connected to the same LAN and logical subnet as your PC, open the

Moxa switch’s web console as follows:

1. Connect your web browser to the Moxa switch’s IP address by entering it in the Address or URL field.

2. The Moxa switch’s web console will open, and you will be prompted to log in. Select the login account

(admin or user) and enter the Password. This password will be required to access any of the consoles (web,

serial, Telnet). If you do not wish to create a password, leave the Password field blank and press Enter.

NOTE

By default, no password is assigned to the Moxa switch’s web, serial, and Telnet consoles.

PT-7528 Series Getting Started

2-7

3. After logging in, you may need to wait a few moments for the web console to appear. Use the folders in the

left navigation panel to navigate between different pages of configuration options.

Disabling Telnet and Browser Access

If you are connecting the Moxa switch to a public network but do not intend to manage it over the network, we

suggest disabling both the Telnet and web consoles. This is done from the serial console by navigating to

System Identification under Basic Settings. Disable or enable the Telnet Console and Web

Configuration as shown below:

3. Quick Settings

In this chapter, we explain how to easily set the Moxa PowerTrans Series switch’s configuration for substation

users. You can configure the main functions step by step. These functions can be accessed by web console. The

web console is the most user-friendly interface for configuring a Moxa switch and can be opened over an

Ethernet LAN or the Internet.

The following topics are covered in this chapter:



Quick Settings

 System Time

 QoS

 Redundancy



 VLAN

 Mirror

 IP



Summary



Finish

PT-7528 Series Quick Settings

3-2

Quick Settings

The Quick Settings section includes the most common settings required by administrators to maintain and

control a Moxa PowerTrans Series switch.

System Time

The Moxa switch has a time calibration function based on information from an NTP server or user specified time

and date. Functions such as automatic warning emails can therefore include time and date stamp.

NOTE

The Moxa switch does not have a real time clock. The user must update the Current Time and Current Date

to set the initial time for the Moxa switch after each reboot, especially when there is no NTP server on the LAN

or Internet connection.

Current Time

Setting Description Factory Default

User-specified time Allows configuration of the local time in local 24-hour format. None

Current Date

Setting Description Factory Default

User-specified date Allows configuration of the local date in yyyy-mm-dd format. None

Time Server IP/Name

Setting Description Factory Default

IP address or name of

time server

The IP or domain address (e.g., 192.168.1.1,

time.stdtime.gov.tw, or time.nist.gov).

None

IP address or name of

secondary time server

The Moxa switch will try to locate the secondary NTP server if

the first NTP server fails to connect.

Time Protocol

Setting Description Factory Default

Disable Disables SNTP/NTP server functionality for clients -

NTP NTP (Network Time Protocol) is used to synchronize time with

multiple time servers. The time accuracy is up to 50 ms.

SNTP SNTP stands for (Simple Network Time Protocol). The

synchronization process of SNTP is simpler than NTP. The time

accuracy is up to 1 second, which is suitable for low time

accuracy requirements.

PT-7528 Series Quick Settings

3-3

QoS

The Moxa PowerTrans Series switch provides IEC 61850 Quality of Service (QoS). Once you enable IEC

61850 QoS, the packet priority of GOOSE/SMV/PTP is higher than other packets’ type.

Enable Packet Priority

Setting Description Factory Default

Enable IEC 61850 QoS Enables or disables IEC 61850 OoS function. disables

GOOSE

Setting Description Factory Default

High/Medium/Normal/

Low

The priority sequence is High>Medium>Normal>Low. We

recommend setting GOOSE packet as high priority.

High

SMV

Setting Description Factory Default

High/Medium/Normal/

Low

The priority sequence is High>Medium>Normal>Low. We

recommend setting SMV packet as high priority.

High

PTP

Setting Description Factory Default

High/Medium/Normal/

Low

The priority sequence is High>Medium>Normal>Low. High

PT-7528 Series Quick Settings

3-4

Redundancy

The Moxa switch uses an IP address-based filtering method to control access.

Redundancy Protocol

Setting Description Factory Default

None Ring redundancy is not active. None

RSTP Select this item to change to the RSTP configuration page.

Turbo Ring V2 Select this item to change to the Turbo Ring V2 configuration

page.

Redundant Port

Setting Description Factory Default

1st Port Select any port of the switch to be one of the redundant ports. 15, 16

2nd Port Select any port of the switch to be one of the redundant ports.

You can set other redundancy protocols, such as Turbo Ring V1/Turbo Chain/MSTP, in advanced setting section.

More details please refer to “Communication Redundancy User’s Manual”.

VLAN

To configure 802.1Q VLAN and port-based VLANs on the Moxa switch, use the VLAN Settings page to

configure the ports.

VLAN Mode

Setting Description Factory Default

802.1Q VLAN Set VLAN mode to 802.1Q VLAN 802.1Q VLAN

Unaware VLAN Set VLAN mode to Unaware VLAN

PT-7528 Series Quick Settings

3-5

802.1Q VLAN Settings

Port

Setting Description Factory Default

Port from 1 to 28 Assigns port number. ---

Port Type

Setting Description Factory Default

Access Port type is used to connect single devices without tags. Access

Trunk Select Trunk port type to connect anothe

r 802.1Q VLAN aware

switch

Hybrid Select Hybrid port to connect another Access 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 enviro

nment, 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 Moxa switch units.

Port PVID

Setting Description Factory Default

VID ranges from 1 to

4094

Sets the default VLAN ID for untagged devices that connect to

the port.

PT-7528 Series Quick Settings

3-6

Fixed VLAN List (Tagged)

Setting Description Factory Default

VID ranges from 1 to

4094

This field will be active only when selecting the Trunk or Hybrid

port type. Set the other VLAN ID for tagged devices that

connect to the port. Use commas to separate different VIDs.

None

Unaware VLAN Settings

The Unaware VLAN function provides users a flexible operation in a VLAN network. Switches which are set on

Unaware VLAN mode do not check the VLAN tags of input Ethernet frame. All of VLAN tags can always in and

out of the Unaware VLAN switch, and the switch won’t affect the VLAN tags of Ethernet frames.

More details about VLAN concept please refer to “Advanced Settings - Using Virtual LAN”.

Mirror

The Mirror 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. Using a mirror port allows the network administrator to sniff the observed port to

keep tabs on network activity.

PT-7528 Series Quick Settings

3-7

Mirror Port Settings

Setting Description

Monitored Port Select the number of the ports whose network activity will be monitored.

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

port.

The IPv4 settings include the switch’s IP address and subnet mask, as well as the IP address of the default

gateway.

IP Configuration

Setting Description Factory Default

DHCP The Moxa switch’s IP address will be assigned automatically by

the network’s DHCP server.

Static The Moxa switch’s IP address will be assigned by inputting.

Switch IP Address

Setting Description Factory Default

IP address for the Moxa

switch

Assigns the Moxa switch’s IP address on a TCP/IP network. 192.168.127.253

Switch Subnet Mask

Setting Description Factory Default

Subnet mask for the

Moxa switch

Identifies the type of network the Moxa switch is connected to

(e.g., 255.255.0.0 for a Class B network, or 255.255.255.0 for

a Class C network).

255.255.255.0

Default Gateway

Setting Description Factory Default

IP address for gateway Specifies the IP address of the router that connects the LAN to

an outside network.

None

PT-7528 Series Quick Settings

3-8

Summary

The Summary page shows all configurations in the block. You can review and click "Next" button to move

"Finish" page. Press "Back" button if you need to change any setting".

Finish

You need to confirm the configurations and click the "Active" button. The configurations in Quick Settings will

overwrite the configurations in Advanced Settings.

4. Advanced Settings

In this chapter, we explain how to access the Moxa switch’s various configuration, monitoring, and

administration functions. These functions can be accessed by serial, Telnet, or web console. The serial console

can be used if you do not know the Moxa switch’s IP address and requires that you connect the Moxa switch to

a PC COM port. The Telnet and web consoles can be opened over an Ethernet LAN or the Internet.

The web console is the most user-friendly interface for configuring a Moxa switch. In this chapter, we use the

web console interface to introduce the functions. There are only a few differences between the web console,

serial console, and Telnet console.

The following topics are covered in this chapter:



Configuring Advanced Settings



Loop Protection



Using Port Trunking



Configuring SNMP



Using PoE (PoE Models Only)



Using Virtual LAN



Using Multicast Filtering



Using Bandwidth Management



Security



Authentication Certificate



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 Access Control List



Using Event Log



Using Syslog



Using HTTPS/SSL



Using Industrial Protocol

PT-7528 Series Advanced Settings

4-2

Configuring Advanced Settings

The Advanced Settings section lists all the settings required by administrators to maintain and control a Moxa

switch.

System Identification

System Identification items are displayed at the top of the web console and will be included in alarm emails.

You can configure the System Identification items to make it easier to identify different switches that are

connected to your network.

Switch Name

Setting Description Factory Default

Max. 30 characters This option is useful for differentiating between the roles or

applications of different units. Example: Factory Switch 1.

Managed

Redundant Switch

[Serial no. of this

switch]

Switch Location

Setting Description Factory Default

Max. 80 characters This option is useful for diff

erentiating between the locations of

different units. Example: production line 1.

Switch Location

Switch Description

Setting Description Factory Default

Max. 30 characters This option is useful for recording a more detailed description of

the unit.

None

Maintainer Contact Info

Setting Description Factory Default

Max. 30 characters This option is useful for providing information about who is

responsible for maintaining this unit and how to contact this

person.

None

PT-7528 Series Advanced Settings

4-3

Web Auto-logout (S)

Setting Description Factory Default

60 to 86400 (seconds) Disable or extend the auto-logout time for the web

management console.

0 (disabled)

Age Time (S)

Setting Description Factory Default

15 to 3825 (seconds) The length of time that a MAC address entry can remain in t

Moxa switch. When an entry reaches its aging time, it “ages

out” and is purged from the switch, effectively cancelling frame

forwarding to that specific port.

300

CPU Loading

Setting Description Factory Default

Read-only The CPU usage volume in the pa

st 5 seconds, 30 seconds, and

5 minutes

None

Free Memory

Setting Description Factory Default

Read-only The immediately free memory of the switch None

Jumbo Frame

Setting Description Factory Default

Enable Enables the Moxa switch to support the Jumbo Frame function Disabled

Disable Disables the Jumbo Frame function

Jumbo Frame MAX (bytes)

Setting Description Factory Default

1522 to 9000 The maximum length supported by the Jumbo Frame function 9000

NOTE: “Jumbo Frame” is supported by the IKS-G6000 series and the ICS-G7000 Series.

Password

The Moxa switch provides two levels of configuration access. The admin account has read/write access of all

configuration parameters, and the user account has read access only. A user account can view the

configuration, but will not be able to make modifications.

ATTENTION

By default, a password is not assigned to the Moxa switch’s web, Telnet, and serial consoles. If a password is

assigned, you will be required to enter the password when you open the serial console, Telnet console, or Web

console.

PT-7528 Series Advanced Settings

4-4

Account

Setting Description Factory Default

Admin This account can modify the Moxa switch’s configuration. admin

User This account can only view the Moxa switch’s configurations.

Password

Setting Description Factory Default

Old password

(max. 16 characters)

Enter the current password None

New password

(Max. 16 characters)

Enter the desired new password. Leave it blank if you want to

remove the password.

None

Retype password (Max.

16 characters)

Enter the desired new password again. Leave it blank if you

want to remove the password.

None

Accessible IP List

The Moxa switch uses an IP address-based filtering method to control access.

You may add or remove IP addresses to limit access to the Moxa switch. When the accessible IP list is enabled,

only addresses on the list will be allowed access to the Moxa switch. Each IP address and netmask entry can be

tailored for different situations:

• Grant access to one host with a specific IP address

For example, enter IP address 192.168.1.1 with netmask 255.255.255.255 to allow access to 192.168.1.1

only.

• Grant access to any host on a specific subnetwork

For example, enter IP address 192.168.1.0 with netmask 255.255.255.0 to allow access to all IPs on the

subnet defined by this IP address/subnet mask combination.

• Grant access to all hosts

Make sure the accessible IP list is not enabled. Remove the checkmark from Enable the accessible IP

list.

The following table shows additional configuration examples:

Hosts That Need Access 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

PT-7528 Series Advanced Settings

4-5

Port Settings

Ethernet Port Settings

Port settings are included to give the user control over port access, port transmission speed, flow control, and

port type (MDI or MDIX).

Enable

Setting Description Factory Default

Checked Allows data transmission through the port. Enabled

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

Adva

nced 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 Specifies an alias for the port to help administrators

differentiate between different ports. Example: PLC 1

None

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.

Auto

1G-Full

Choose one of these fixed speed options if the connected

Ethernet device has trouble auto-negotiating for line speed.

100M-Full

100M-Half

10M-Full

10M-Half

PT-7528 Series Advanced Settings

4-6

FDX Flow Ctrl

This setting enables or disables flow control for the port when the port’s Speed is set to Auto. The final result

will be determined by the Auto process between the Moxa switch and connected devices.

Setting Description Factory Default

Enable

Enables flow control for this port when the port’s Speed

is set to Auto.

Disabled

Disable

Disables flow control for this port when the port’s Speed

is set to Auto.

MDI/MDIX

Setting Description Factory Default

Auto

Allows the port to auto-detect the port type of the connected

Ethernet device and change the port type accordingly.

Auto

MDI

Choose MDI or MDIX if the connected Ethernet device has

trouble auto-negotiating for port type.

MDIX

Network Parameters

Network configuration allows users to configure both IPv4 and IPv6 parameters for management access over

the network. The Moxa switch supports both IPv4 and IPv6, and can be managed through either of these

address types.

A brief explanation of each configuration item is given below.

IP4

The IPv4 settings include the switch’s IP address and subnet mask, as well as the IP address of the default

gateway. In addition, input cells are provided for the IP addresses of a 1st and 2nd DNS server.

Auto IP Configuration

Setting Description Factory Default

Disable The Moxa switch’s IP address must be set manually. Disable

By DHCP The Moxa switch’s IP address will be assigned automatically by

the network’s DHCP server.

By BootP The Moxa switch’s IP address will be assigned automatically by

the network’s BootP server.

Switch IP Address

Setting Description Factory Default

IP address for the Moxa

switch

Assigns the Moxa switch’s IP address on a TCP/IP network. 192.168.127.253

PT-7528 Series Advanced Settings

4-7

Switch Subnet Mask

Setting Description Factory Default

Subnet mask for the

Moxa switch

Identifies the type of network the Moxa switch is connected to

(e.g., 255.255.0.0 for a Class B network, or 255.255.255.0 for

a Class C network).

255.255.255.0

Default Gateway

Setting Description Factory Default

IP address for gateway Specifies the IP address of the router that connects the LAN to

an outside network.

None

DNS IP Address

Setting Description Factory Default

IP address for DNS

server

Specifies the IP address of the DNS server used by your

network. After s

pecifying the DNS server’s IP address, you can

use the Moxa switch’s URL (e.g., www.PT.company.com) to

open the web console instead of entering the IP address.

None

IP address for 2nd DNS

server

Specifies the IP address of the secondary DNS server used by

your network. The Moxa switch will use the secondary DNS

server if the first DNS server fails to connect.

None

DHCP Retry Periods

Setting Description Factory Default

1 to 30

Users can configure the DHCP retry period manually

DHCP Retry Times

Setting Description Factory Default

0 to 65535 Users can configure the times of DHCP retry manually 0

IP6

The IPv6 settings include two distinct address types—Link-Local Unicast addresses and Global Unicast

addresses. A Link-Local address makes the switch accessible over IPv6 for all devices attached to the same

local subnet. To connect to a larger network with multiple segments, the switch must be configured with a

Global Unicast address.

Global Unicast Address Prefix (Prefix Length: 64 bits) Default Gateway

Setting Description Factory Default

Global Unicast Address

Prefix

The prefix value must be formatted according to the RFC 2373

“IPv6 Addressing Architecture,” using 8 colon-separated 16-bit

hexadecimal values. One double colon may be used in the

address to indicate the appropriate number of zeros required to

fill the undefined fields.

None

Global Unicast Address

Setting Description Factory Default

None Displays the IPv6 Global Unicast address. The network portion

of the Global Unicast address can be configured by specifying

the Global Unicast Prefix and using an EUI-64 interface ID in the

low order 64 bits. The host portion of the Global Unicast address

is automatically generated using the modified EUI-64 form of

the interface identifier (Switch’s MAC address).

None

PT-7528 Series Advanced Settings

4-8

Link-Local Address

Setting Description Factory Default

None The network portion of the Link-Local address is FE80 and the

host portion of the Link-Local address is automatically

generated using the modified EUI-64 form of the interface

identifier (Switch’s MAC address)

None

Neighbor Cache

Setting Description Factory Default

None The information in the neighbor cache that includes the

neighboring node’s IPv6 address, the corresponding Link-

Layer

address, and the current state of the entry.

None

GARP Timer Parameters

Generic Attribute Registration Protocol (GARP) was defined by the IEEE 802.1 working group to provide a

generic framework. GARP defines the architecture, rules of operation, state machines, and variables for the

registration and de-registration of attribute values.

The GARP Timer parameters are exchanged by creating the applications via GVRP (GARP VLAN Registration

Protocol) to set the attributes of Timer.

Note that you need to set the same GARP timer values on all Layer 2 switches to ensure that the system works

successfully.

Join Time

Setting Description Factory Default

None Specifies the period of the join time 200

Leave Time

Setting Description Factory Default

None Specifies the period of leave time 600

Leaveall Time

Setting Description Factory Default

None Specifies the period of leaveall time 10000

NOTE

Leave Time should be at least two times more than Join Time, and Leaveall Time should be larger than

Leave Time.

PT-7528 Series Advanced Settings

4-9

System Time Settings

The Moxa switch has a time calibration function based on information from an NTP server or user specified time

and date. Functions such as automatic warning emails can therefore include time and date stamp.

NOTE

The Moxa switch does not have a real time clock. The user must update the Current Time and Current Date

to set the initial time for the Moxa switch after each reboot, especially when there is no NTP server on the LAN

or Internet connection.

Current Time

Setting Description Factory Default

User-specified time Allows configuration of the local time in local 24-hour format. None

Current Date

Setting Description Factory Default

User-specified date Allows configuration of the local date in yyyy-mm-dd format. None

Daylight Saving Time

The Daylight Saving Time settings are used to automatically set the Moxa switch’s time forward according to

national standards.

Start Date

Setting Description Factory Default

User-specified date Specifies the date that Daylight Saving Time begins. None

End Date

Setting Description Factory Default

User-specified date Specifies the date that Daylight Saving Time ends. None

Offset

Setting Description Factory Default

User-specified hour Specifies the number of hours that the time should be set

forward during Daylight Saving Time.

None

System Up Time

Indicates how long the Moxa switch remained up since the last cold start. The up time is indicated in seconds.

Time Zone

Setting Description Factory Default

Time zone Specifies the time zone, which is used to determine the local

time offset from GMT (Greenwich Mean Time).

GMT (Greenwich

Mean Time)

NOTE

Changing the time zone will automatically correct the current time. Be sure to set the time zone before setting

the time.

PT-7528 Series Advanced Settings

4-10

Time Server IP/Name

Setting Description Factory Default

IP address or name of

time server

The IP or domain address (e.g., 192.168.1.1,

time.stdtime.gov.tw, or time.nist.gov).

None

IP address or name of

secondary time server

The Moxa switch will try to locate the secondary NTP server if

the first NTP server fails to connect.

Time Protocol

Setting Description Factory Default

NTP NTP (Network Time Protocol) is used to synchronize time with

multiple time servers. The time accuracy is up to 50 ms.

SNTP SNTP stands for Simple Network Time Protocol). The

synchronization process of SNTP is simpler than NTP. The

time accuracy is up to 1 second, which is suitable for low time

accuracy requirements.

Enable NTP/SNTP Server

Setting Description Factory Default

Enable/Disable Enables SNTP/NTP server functionality for clients Disabled

IEEE 1588 PTP

The following information is taken from the NIST website at http: //ieee1588.nist.gov/intro.htm:

“Time measurement can be accomplished using the IEEE Standard for a Precision Clock Synchronization

Protocol for Networked Measurement and Control Systems (IEEE 1588-2008) to synchronize real-time clocks

incorporated within each component of the electrical power system for power automation applications.

IEEE 1588, which was published in November 2002, expands the performance capabilities of Ethernet networks

to control systems that operate over a communication network. In recent years an increasing number of

electrical power systems have been using a more distributed architecture with network technologies that have

less stringent timing specifications. IEEE 1588 generates a master-slave relationship between the clocks, and

enforces the specific timing requirements in such power systems. All devices ultimately get their time from a

clock known as the grandmaster clock. In its basic form, the protocol is intended to be administration free.”

How does an Ethernet switch affect 1588 synchronization?

The following content is taken from the NIST website at http: //ieee1588.nist.gov/switch.htm:

“An Ethernet switch potentially introduces multi-microsecond fluctuations in the latency between the 1588

grandmaster clock and a 1588 slave clock. Uncorrected these fluctuations will cause synchronization errors.

The magnitude of these fluctuations depends on the design of the Ethernet switch and the details of the

communication traffic. Experiments with prototype implementations of IEEE 1588 indicate that with suitable

care the effect of these fluctuations can be successfully managed. For example, use of appropriate statistics in

the 1588 devices to recognized significant fluctuations and use suitable averaging techniques in the algorithms

controlling the correction of the local 1588 clock will be the good design means to achieve the highest time

accuracy.”

PT-7528 Series Advanced Settings

4-11

Can Ethernet switches be designed to avoid the effects of these

fluctuations?

A switch can be designed to support IEEE 1588 while avoiding the effects of queuing. In this case two

modifications to the usual design of an Ethernet switch are necessary:

1. The Boundary Clock and Transparent Clock functionalities defined by IEEE 1588 must be implemented

in the switch.

2. The switch must be configured such that it does not pass IEEE 1588 message traffic using the normal

communication mechanisms of the switch.

Such an Ethernet switch will synchronize clocks directly connected to one of its ports to the highest possible

accuracy.

NOTE

If the CM

-600-4TX-PTP module is not installed, then the EDS-600 only supports software-based IEEE 1588.

PT-7528 Series Advanced Settings

4-12

Configuring PTP

IEEE 1588/PTP Operation

Operation

Setting Description Factory Default

Enable PTP Globally disables or enables IEEE 1588 operation. Disabled

IEEE 1588/PTP Configuration

Clock Mode (sets the switch’s clock mode)

Setting Description Factory Default

v1 BC Operates as an IEEE 1588 v1 boundary clock. v1 BC

v2 E2E 2-step TC Operates as an edge-to-edge IEEE 1588 v2 transparent clock

with 2-step method.

v2 E2E 1-step TC Operates as an edge-to-edge IEEE 1588 v2 transparent clock

with 1-step method.

v2 P2P 2-step TC Operates as a peer-to-peer IEEE 1588 v2 transparent clock

with 2-step method.

v2 E2E BC Operates as an edge-to-edge IEEE 1588 v2 boundary clock

v2 P2P BC Operates as a peer-to-peer IEEE 1588 v2 boundary clock

PT-7528 Series Advanced Settings

4-13

logSyncInterval (sets the synchronization message time interval)

Setting Description Factory Default

0, 1, 2, 3, or 4

0 (1 s), 1 (2 s), 2 (4 s), 3 (8 s), or 4 (16 s). Supported in IEEE

1588 V1.

-3, -2, -1, 0, or 1 -3 (128 ms), -2 (256 ms), -1 (512 ms), 0 (1 s), or 1 (2 s).

Supported in IEEE 1588 V2.

logAnnounceInterval (sets the announce message interval)

Setting Description Factory Default

0, 1, 2, 3, or 4 0 (1 s), 1 (2 s), 2 (4 s), 3 (8 s), or 4 (16 s) 1 (2 s)

announceReceiptTimeout

Setting

Description

Factory Default

2, 3, 4, 5, 6, 7, 8, 9, or

The multiple of announce message receipt timeout by the

announce message interval.

logMinDelayReqInterval

Setting Description Factory Default

0, 1, 2, 3, 4, or 5

Minimum delay request message interval

0 (1 sec.)

logMinPdelayReqInterval

Setting Description Factory Default

1, 0, 1, 2, 3, or 4 Minimal delay request message interval:

-1 (512 ms), 0 (1 s), 1 (2 s), 2 (4 s), 3 (8 s), or 4 (32 s)

(Available in Clock Mode: v2 P2P 2-step TC, and v2 P2P BC)

0 (1 sec)

Domain Number

Setting Description Factory Default

_DFLT (0), _ALT(1),

_ALT(2), or _ALT(3)

Subdomain name (IEEE 1588-2002) or the domain Number

(IEEE 1588-2008) fields in PTP messages

_DFLT (0)

Transport of PTP (transport protocol of an IEEE 1588 PTP message)

Setting Description Factory Default

IPv4 or 802.3/Ethernet • IEEE 1588 PTP V1 supports IPv4 only

• IEEE 1588 PTP V2 supports both IPv4 and IPv6.

IPv4

Preferred Master

Setting Description Factory Default

True or False Set this switch to be the Grand Master. False

priority1

Setting Description Factory Default

0 to 255 Set first priority value; 0 = highest priority, 255 = lowest

priority.

128

priority2

Setting Description Factory Default

0 to 255 Set second priority value; 0 = highest priority, 255 = lowest

priority.

128

clockClass

Setting Description Factory Default

0 to 255 The clockCla

ss attribute denotes the traceability of the time or

frequency distributed by the grandmaster clock.

248

PT-7528 Series Advanced Settings

4-14

clockAccuracy

Setting Description Factory Default

0x21

The clockAccuracy characterizes a clock for the purpose of the

best master clock (BMC) algor

ithm. This value is fixed at 0x21,

which means the time of the EDS switch is accurate to within

100 ns.

0x21

Timescale

Setting Description Factory Default

PTP or ARB • PTP timescale: In normal operation, the epoch is the PTP

epoch and the timescale is continuous. The time unit is SI

seconds, as realized on the rotating geoid (SI: International

System).

•

ARB timescale: In normal operation, the epoch is set by an

administrative procedure. The epoch can be reset during

normal operation. Between invocations of the

administrative procedure, the timescale is continuous.

Additional invocations of the administrative procedure may

introduce discontinuities in the overall timescale.

PTP

ARB Time

Setting Description Factory Default

0 to 255

The geoid of the PTP clock reference time (seconds).

Leap59

Setting Description Factory Default

True or False

The last minute of the current UTC day contains 59 seconds. If

the epoch is not PTP, the value will be set to FALSE.

False

Leap61

Setting Description Factory Default

True or False

The last minute of the current UTC day contains 61 seconds. If

the epoch is not PTP, the value will be set to FALSE.

False

UTC Offset Valid

Setting

Description

Factory Default

True or False The initialization value will be TRUE if the value of the current

UTC offset is known to be correct; otherwise, it will be FALSE.

False

UTC Offset

Setting Description Factory Default

0 to 255 The known UTC offset (seconds). 0

Status

Setting Description Factory Default

N/A Shows the current IEEE 1588 PTP status. N/A

PTP Port Settings

Shows the current switch PTP port settings.

PT-7528 Series Advanced Settings

4-15

System File Update

Update System Files by Remote TFTP

The Moxa switch supports saving your configuration or log file to a remote TFTP server or local host. Other

Moxa switches can also load the configuration at a later time. The Moxa switch also supports loading firmware

or configuration files from the TFTP server or a local host.

TFTP Server IP/Name

Setting Description Factory Default

IP address of TFTP

server

Specifies the IP address or name of the remote TFTP server.

Must be specified before downloading or uploading files.

None

Configuration Files Path and Name

Setting Description Factory Default

Max. 40 characters Specifies the path and file name of the Moxa switch’s

configuration file on the TFTP server.

None

Firmware Files Path and Name

Setting Description Factory Default

Max. 40 characters Specifies the path and file name of the Moxa switch’s firmware

file.

None

Log Files Path and Name

Setting Description Factory Default

Max. 40 characters Specifies the path and file name of the Moxa switch’s log file. None

After setting the desired paths and file names, click Download to download the prepared file from the remote

TFTP server, or click Upload to upload the desired file to the remote TFTP server.

PT-7528 Series Advanced Settings

4-16

Update System Files from Local PC

Configuration File

Click Export to save the Moxa switch’s configuration file to the local host.

Log File

Click Export to save the Moxa switch’s log file to the local host.

NOTE

Some operating systems will open the configuration file and log file directly in the web page. In such cases,

right click the Export button to save the file.

Upgrade Firmware

To import a new firmware file into the Moxa switch, click Browse to select the firmware file that is saved on

your computer. The upgrade procedure will proceed automatically after clicking Import.

Upload Configure Data

To import a configuration file into the Moxa switch, click Browse to select the configuration file already saved

on your computer. The upgrade procedure will proceed automatically after clicking Import.

ABC (Auto-Backup Configurator) Configuration

You can use Moxa’s Automatic Backup Configurator to save and load the Moxa switch’s configurations through

the switch’s RS-232 console port.

PT-7528 Series Advanced Settings

4-17

Restart

This function provides users with a quick way to restart the system.

Reset to Factory Default

This function provides users with a quick way of restoring the Moxa switch’s configuration to factory defaults.

The function is available in the serial, Telnet, and web consoles.

NOTE

After restoring the factory default configuration, you will need to use the default network settings to

-establish the web or Telnet console connection with the Moxa switch.

Loop Protection

The switch is designed with a loop checking mechanism: Send a control BPDU from the Ethernet port and check

if this control BPDU will be sent back to the switch again. If the looping occurs, the switch will automatically

block the Ethernet port to prevent looping.

Check the Enable box and click Activate to enable the Loop protection.

PT-7528 Series Advanced Settings

4-18

Using Port Trunking

Link aggregation involves grouping links into a link aggregation group. A MAC client can treat link aggregation

groups as if they were a single link.

The Moxa switch’s port trunking feature allows devices to communicate by aggregating up to 4 trunk groups,

with a maximum of 8 ports for each group. If one of the 8 ports fails, the other seven ports will automatically

provide backup and share the traffic.

Port trunking can be used to combine up to 8 ports between two Moxa switches. If all ports on both switches

are configured as 100BaseTX and they are operating in full duplex, the potential bandwidth of the connection

will be 1600 Mbps.

The Port Trunking Concept

Moxa has developed a port trunking protocol that provides the following benefits:

• Greater flexibility in setting up your network connections, since the bandwidth of a link can be doubled,

tripled, or quadrupled.

• Redundancy—if one link is broken, the remaining trunked ports share the traffic within this trunk group.

• Load sharing—MAC client traffic can be distributed across multiple links.

To avoid broadcast storms or loops in your network while configuring a trunk, first disable or disconnect all

ports that you want to add to the trunk or remove from the trunk. After you finish configuring the trunk, enable

or re-connect the ports.

If all ports on both switch units are configured as 100BaseTX and they are operating in full duplex mode, the

potential bandwidth of the connection will be up to 1.6 Gbps. This means that users can double, triple, or

quadruple the bandwidth of the connection by port trunking between two Moxa switches.

Each Moxa switch can set a maximum of 4 port trunking groups. When you activate port trunking, certain

settings on each port will be reset to factory default values or disabled:

• Communication redundancy will be reset

• 802.1Q VLAN will be reset

• Multicast Filtering will be reset

• Port Lock will be reset and disabled.

• Set Device IP will be reset

• Mirror will be reset

After port trunking has been activated, you can configure these items again for each trunking port.

Port Trunking Settings

The Port Trunking Settings page is where ports are assigned to a trunk group.

PT-7528 Series Advanced Settings

4-19

Step 1: Select the desired Trunk Group

Step 2: Select the Trunk Type (Static or LACP).

Step 3: Select the Trunk mode.

Step 4: Select the desired ports under Available Ports and click Up to add to the Trunk Group.

Step 5: Select the desired ports under Member Ports and click Down to remove from the group.

Trunk Group (maximum of 4 trunk groups)

Setting Description Factory Default

Trk1, Trk2, Trk3, Trk4

(depends on switching

chip capability; some

Moxa switches only

support 3 trunk

groups)

Specifies the current trunk group. Trk1

Trunk Type

Setting Description Factory Default

Static Selects Moxa’s proprietary trunking protocol. Static

LACP Selects LACP (IEEE 802.3ad, Link Aggregation Control

Protocol).

Static

Trunk Mode

Setting Description Factory Default

SA xor DA, SA, DA, SIP,

DIP,SIP xor DIP

Trunk mode represents the algorithm of load balance. SA xor

DA optimizes the performance of load balance and is highly

recommended.

SA xor DA

Available Ports/Member Ports

Setting Description Factory Default

Member/Available

ports

Lists the ports in the current trunk group and the ports that are

available to be added.

N/A

Check box Selects the port to be added or removed from the group. Unchecked

Port How each port is identified. N/A

Port description Displays the media type for each port. N/A

Name Displays the specified name for each port. N/A

Speed Indicates the transmission speed for each port (1G-Full,

100M-Full, 100M-Half, 10M-Full, or 10M-Half).

N/A

FDX flow control Indicates if the FDX flow control of this port is enabled or

disabled.

N/A

Up Add selected ports into the trunk group from available ports. N/A

Down Remove selected ports from the trunk group. N/A

Trunk Table

Setting Description

Trunk group Displays the trunk type and trunk group.

Member port Displays the member ports that belong to the trunk group.

Status • Success means port trunking is working properly.

• Fail means port trunking is not working properly.

PT-7528 Series Advanced Settings

4-20

Configuring SNMP

The Moxa switch supports SNMP V1, V2c, and 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 strings public and private by default. SNMP V3 requires that you select an authentication

level of MD5 or SHA, and is the most secure protocol. You can also enable data encryption to enhance data

security.

Supported SNMP security modes and levels 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

UI Setting Authentication Encryption Method

SNMP V1,

V2c

V1, V2c Read

Community

Community string No Uses a community string match for

authentication.

V1, V2c

Write/Read

Community

Community string No Uses a community string match for

authentication.

SNMP V3 No-Auth No No Uses an account with admin or user to access

objects

MD5 or SHA Authentication

based on MD5 or

SHA

No Provides authentication based on HMAC-MD5,

or HMAC-SHA algorithms. 8-character

passwords are the minimum requirement for

authentication.

MD5 or SHA Authentication

based on MD5 or

SHA

Data

encryption

key

Provides authentication based on HMAC-MD5

or HMAC-SHA algorithms, and data enc

ryption

key. 8-character passwords and a data

encryption key are the minimum requirements

for authentication .and encryption.

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

below the figure.

PT-7528 Series Advanced Settings

4-21

SNMP Read/Write Settings

SNMP Versions

Setting Description Factory Default

V1, V2c, V3, or

V1, V2c, or

V3 only

Specifies the SNMP protocol version used to manage the switch. V1, V2c

V1, V2c Read Community

Setting Description Factory Default

Max. 30 characters Specifies the community string to authenticate the SNMP agent

for read-only access. The SNMP agent will access all objects

with read-only permissions using this community string.

Public

V1, V2c Write/Read Community

Setting Description Factory Default

Max. 30 characters Specifies the community string to authenticate the SNMP agent

for read/write access. The SNMP server will access all objects

with read/write permissions using this community string.

Private

For SNMP V3, two levels of privilege are available accessing the Moxa switch. Admin privilege provides access

and authorization to read and write the MIB file. User privilege allows reading of the MIB file only.

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

Setting

Description

Factory Default

No-Auth Allows the admin account to access objects without

authentication.

MD5-

Auth

Authentication will be based on the HMAC-MD5 algorithms.

8-character passwords are the minimum requirement for

authentication.

SHA-

Auth

Authentication will be based on the HMAC-SHA algorithms.

8-character passwords are the minimum requirement for

authentication.

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

Setting Description Factory Default

Enable Enables data encryption using the specified data encryption key

(between 8 and 30 characters).

Disable Specifies that data will not be encrypted. No

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

Setting Description Factory Default

No-Auth Allows the admin account and user account to access objects

without authentication.

MD5-Auth Authentication will be based on the HMAC-MD5 algorithms.

8-character passwords are the minimum requirement for

authentication.

SHA-Auth Authentication will be based on the HMAC-SHA algorithms.

8-character passwords are the minimum requirement for

authentication.

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

Setting

Description

Factory Default

Enable Enables data encryption using the specified data encryption key

(between 8 and 30 characters).

Disable No data encryption No

PT-7528 Series Advanced Settings

4-22

Trap Settings

SNMP traps allow an SNMP agent to notify the NMS of a significant event. The switch supports two SNMP modes,

Trap mode and Inform mode.

SNMP Trap Mode—Trap

In Trap mode, the SNMP agent sends an SNMPv1 trap PDU to the NMS. No acknowledgment is sent back from

the NMS so the agent has no way of knowing if the trap reached the NMS.

SNMP Trap Mode—Inform

SNMPv2 provides an inform mechanism. When an inform message is sent from the SNMP agent to the NMS, the

receiver sends a response to the sender acknowledging receipt of the event. This behavior is similar to that of

the get and set requests. If the SNMP agent does not receive a response from the NMS for a period of time, the

agent will resend the trap to the NMS agent. The maximum timeout time is 300 sec (default is 1 sec), and the

maximum number of retries is 99 times (default is 1 time). When the SNMP agent receives acknowledgement

from the NMS, it will stop resending the inform messages.

1st Trap Server IP/Name

Setting Description Factory Default

IP or name Specifies the IP address or name of the primary trap server

used by your network.

None

1st Trap Community

Setting Description Factory Default

Max. 30 characters Specifies the community string to use for authentication. Public

2nd Trap Server IP/Name

Setting Description Factory Default

IP or name Specifies the IP address or name of the secondary trap server

used by your network.

None

2nd Trap Community

Setting Description Factory Default

Max. 30 characters Specifies the community string to use for authentication. Public

PT-7528 Series Advanced Settings

4-23

Private MIB Information

Switch Object ID

Setting Description Factory Default

Specific Moxa Switch ID Indicates the Moxa switch’s enterprise value. Depends on switch

model type

NOTE: The Switch Object ID cannot be changed.

Using PoE (PoE Models Only)

Power over Ethernet has become increasingly popular due in large part to the reliability provided by PoE

Ethernet switches that supply the necessary power to Powered Devices (PD) when AC power is not readily

available or cost-prohibitive to provide locally.

Power over Ethernet can be used with:

• Surveillance cameras

• Security I/O sensors

• Industrial wireless access points

• Emergency IP phones

In fact, it’s not uncommon for video, voice, and high-rate industrial application data transfers to be integrated

into one network. Moxa’s PoE switches are equipped with many advanced PoE management functions,

providing vital security systems with a convenient and reliable Ethernet network. Moreover, Moxa’s advanced

PoE switches support the high power PoE+ standard, 24 VDC direct power input, and 20 ms fast recovery

redundancy, Turbo Ring and Turbo Chain.

Please note that two types of PoE function settings are available, depending on the specific model of switch.

Type Models Supported

Type 1 EDS-P510, EDS-P506A-4PoE, IKS-6726-8PoE

Type 2

EDS-P510A-8PoE, IKS-6728-8PoE-4GTXSFP

Type 1

PoE Setting

The settings are included to give the user control over the system’s PoE power budget, PoE port access, PoE

port power limit and PD failure check.

An explanation of each configuration item follows:

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PoE Power Budget

Indicates the PoE power that can be supplied by the system

Setting Description Factory Default

Auto Allows users to set the actual Power Limit value by each

individual PoE port.

Auto

Manual The user can set the power limit value that indicates the power

supplied by the system.

Port Setting

Enable

Setting Description Factory Default

Checked Allows data and power transmission through the port Enable

Unchecked Immediately shuts off port access Enable

Power Limit

Setting Description Factory Default

Auto The amount of power assigned is determined according to the

class that is read from the powered device.

Auto

Manual The user can set the power limit value that indicates the

maximum amount of power available to the port.

Auto

The PoE Ethernet switch can monitor PD working status via its IP conditions. If the PD fails, the switch will not

receive a PD response after the defined period, and the authentication process is restarted. This is an excellent

function to ensure your network reliability and reduce management burden.

PD Failure Check

Setting Description Factory Default

Checked Enables the PD Failure Check function. Auto

Unchecked Disables the PD Failure Check function. Auto

Setting Description Factory Default

Max. 15 Characters Enter the IP for the PD None

Period

Setting Description Factory Default

Max. 5 Characters Enter the time span for IP checking period None

PoE Timetabling

Powered devices usually do not need to be running 24 hours a day, 7days a

week. The PoE Ethernet switch provides a PoE timetabling mechanism to let

users set a flexible working schedule for each PoE port to economize the

system’s power burden.

Port

Setting Description Factory Default

Port Enable a dedicated port Port 1

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Enable

Setting Description Factory Default

Checked Enables the port for a defined time period Disable

Unchecked Disables the port for a defined time period

Weekly Timetabling

Day

Setting Description Factory Default

Checked Enables the port for a defined number of days Disable

Unchecked Disables the port for a defined number of days

Start/End Time

Setting Description Factory Default

Time for working period Allows users to enter the start and end time for the PD’s

working period

0-24

PoE Status

Item Description

Enable/Disable Indicates the PoE port status

Consumption (W) Indicates the actual Power consumed value for PoE port

Voltage (V) Indicates the actual Voltage consumed value for PoE port

Current (mA) Indicates the actual Current consumed value for PoE port

PoE Email Warning Events Settings

Since industrial Ethernet devices are often located at the endpoints of a system, these devices do not always

know what is happening elsewhere on the network. This means that a PoE port connected to a PD must provide

system administrators 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 the PD almost instantaneously when

exceptions occur. The PoE Ethernet switch supports different methods for warning engineers automatically,

such as email and relay output. It also supports two digital inputs to integrate sensors into your system to

automate alarms using email and relay output.

Email Warning Event Types can be divided into two basic groups: Power-Fail and PD-Failure.

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Port Events Warning e-mail is sent when...

Power-Fail When actual PD power consumption exceeds related PD power limit setting.

PD-Failure When the switch cannot receive a PD response after the defined period.

PoE Relay Warning Events Settings

Relay Warning Event Types can be divided into two basic groups: Power-Fail and PD-Failure.

Port Events Warning e-mail is sent when...

Power-Fail When actual PD power consumption exceeds related PD power limit settings.

PD-Failure When the switch cannot receive a PD response after the defined period.

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Type 2

PoE Setting

The setting are included to give the user control over the system’s PoE power output, PoE power threshold, PoE port

configuration, and PD failure check.

An explanation of each configuration item follows:

PoE System Configuration

PoE power output

Setting Description Factory Default

Enable Enables power transmission to PD Enable

Disable Disables power transmission to PD

PoE power threshold

Setting Description Factory Default

30 to 240 Set the threshold of total PoE power output 240

PoE threshold cutoff

Setting Description Factory Default

Enable Cutoff the PD’s power while its over the threshold Disable

Disable No cutoff while the PD’s power over the threshold

Sum of allocated power

Setting Description

Allocated power This item shows the total allocated power of PDs

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Sum of measured power

Setting Description

Measured power This item shows the total measured power of PDs

PoE Port Configuration

Power

Setting Description Factory Default

Checked Allows data and power transmission through the port Enable

Unchecked Immediately shuts off port access

Output Mode

Setting Description Factory Default

802.3 af/at Auto Power transmission on IEEE 802.3 af/at protocols.

The acceptable PD resistance range is 17 kΩ to 29 kΩ.

802.3 af/at Auto

High Power High Power mode provides users a higher power output to PD.

The acceptable PD resistance range is 17 kΩ to 29 kΩ, and the

power allocation of the port is automatically set to 36 W.

Force Force mode provides users to output power to a non 802.3

af/at PD. The acceptable PD resistance range is over 2.4 kΩ,

and the range of power allocation is 0 to 36 W.

Power Allocation

Setting Description Factory Default

0 to 36 In the Force output mode, the power allocation can be set

from 0 to 36 W.

Legacy PD Detection

The PoE Ethernet Switch provides the Legacy PD Detection function. When the capacitance of PD is higher

than 2.7μF, checking the Legacy PD Detection enables system to output power to PD. If you check the

Legacy PD Detection, it will take longer detection time from 10 to 15 seconds before PoE power output.

Setting

Description

Factory Default

Checked Enables the legacy PD detection Disable

Unchecked Disables the legacy PD detection

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PoE Device Failure Check

The PoE Ethernet Switch can monitor PD working status via its IP conditions. If the PD fails, the switch will not

receive a PD response after the defined period, and the authentication process is restarted. This is an excellent

function to ensure your network reliability and reduce management burden.

Enable

Setting Description Factory Default

Checked Enables the PD Failure Check function Enable

Unchecked Disables the PD Failure Check function

PoE Device IP Address

Setting Description Factory Default

Max. 15 Characters Enter the IP for the PD None

No Response Timeout

Setting Description Factory Default

1 to 10 Enter the cycles for IP checking 3

Check Period

Setting Description Factory Default

5 to 300 Enter the time span for IP checking period 10

No Response Action

Setting Description Factory Default

No Action The PSE has no action on the PD No Action

Reboot PD The PSE reboots the PD after the PD Failure Check

Power Off PD The PSE powers off the PD after the PD Failure Check

PoE Timetabling

Powered devices usually do not need to be running 24 hours a day, 7 days

a week. The PoE Ethernet Switch provides a PoE timetabling mechanism

to let users set a flexible working schedule for each PoE port to economize

the system

’s power burden.

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Port

Setting Description Factory Default

Port Enable a dedicated port Port 1

Enable

Setting Description Factory Default

Checked Enables the port for a defined time period Disable

Unchecked Disables the port for a defined time period

Weekly Timetabling

Day

Setting Description Factory Default

Checked Enables the port for a defined number of days Disable

Unchecked Disables the port for a defined number of days

Start/End Time

Setting Description Factory Default

Time for working

period

Allows users to enter the start and end time for the PD’s

working period

0 ~ 24

PoE Warning Event Setting

Since industrial Ethernet devices are often located at the endpoints of a system, these devices do not always

know what is happening elsewhere on the network. This means that a PoE port connected to a PD must provide

system administrators 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 the PD almost instantaneously when

exceptions occur. The PoE Ethernet Switch supports different methods for warning engineers automatically,

such as SNMP trap, email, and relay output. It also supports two digital inputs to integrate sensors into your

system to automate alarm using email and relay output.

Warning Type

SNMP Trap

Setting Description Factory Default

Enable Enables the SNMP trap function of PoE warning Disable

Disable Disables the SNMP trap function of PoE warning

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Relay Output

Setting Description Factory Default

Enable Enables the relay output function of PoE warning Disable

Disable Disables the relay output function of PoE warning

Setting Description Factory Default

Enable Enables the email alarm function of PoE warning Disable

Disable Disables the email alarm function of PoE warning

Event Type

Port Events Description

PoE port power on

Power outputs to PD

PoE port power off Cut off PoE power output

PoE port over-current/short-circuit When the current of the port exceeds the limitation:

802.3 af – 350mA

802.3 at – 600mA

High Power – 720mA

Force – 600mA

PD Failure Check (no response) When the switch cannot receive a PD response after the defined

period

Exceed PoE system threshold When sum of all PD power consumption exceeds the threshold of

total PoE power output

External FET has failed When the MOSFET of the port is out of order, please contact Moxa

for technical service

PSE chip is over temperature Please check the environmental temperature. If it is over 75oC,

please operate the switch at an adequate temperature. If not,

please contact Moxa for technical service.

VEE (PoE input voltage) under voltage

lockout

The voltage of the power supply drops down below 44VDC.

Adjust the voltage between 46 and 57VDC to eliminate this issue.

NOTE

The Relay Output does not support three Event Types:

External FET has failed, PSE chip is over

temperature

, and VEE (PoE input voltage) under voltage lockout.

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PoE Diagnose

PoE Diagnose helps users to figure out the PD conditions, and the system provides users configuration

suggestions to select the best setting for the PDs.

Following steps help users to diagnose the PD conditions:

Step 1: Check the port numbers which will be diagnosed

Step 2: Click Activate

Step 3: The system shows the selected PD conditions

Diagnose Configuration

Port Number

Setting Description Factory Default

Checked Enable the port to diagnose Unchecked

Unchecked Disable the port to diagnose

Device Type

Item Description

Not Present No connection to the port

NIC An NIC connected to the port

IEEE 802.3 af An IEEE 802.3 af PD connected to the port

IEEE 802.3 at An IEEE 802.3 at PD connected to the port

Legacy PoE Device A legacy PD connected to the port, whose detected voltage is too high or low, or whose

detected capacitance is too high.

Unknown Unknown PD connected to the port

Classification

Item Description

N/A No classification on the port

0 to 4 Class from 0 to 4

Unknown

Unknown class to the port, normally higher than class 4

Voltage (V)

Item Description

N/A No voltage output on the port

Voltage Display the voltage of the port

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PoE Port Configuration Suggestion

Item Description

Disable PoE power output When detecting an NIC or unknown PD, the system suggests

disabling PoE power output.

Enable “Legacy PD Detection” When detecting a higher capacitance of PD, the system suggests

enabling Legacy PD Detection.

Select Force Mode When detecting higher/lower resistance or higher capacitance, the

system suggests selecting Force Mode.

Select IEEE 802.3 af/at auto mode When detecting an IEEE 802.3 af/at PD, the system suggests

selecting 802.3 af/at Auto mode.

Select high power output When detecting an unknown classification, the system suggests

selecting High Power output.

Raise external power supply voltage >

46VDC

When detecting the external supply voltage is below 46 V, the

system suggests raising the voltage.

Enable PoE function for detection The system suggests enabling the PoE function.

PoE Port Status

Monitoring Configuration

Refresh Rate

Setting Description Factory Default

5 to 300 The period of time which the system refreshes the PoE Port

Status

PSE Status

VEE Voltage

Setting Description Factory Default

Read-only Display the VEE supply voltage of PSE None

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PoE Port Status

Status Description

Item Description

Not Present No connection to the port. No PoE power outputs.

Powered PoE power outputs from the PSE

NIC System detects an NIC connected to the port. No PoE power outputs.

Disabled The PoE function of the port is disabled. No PoE power outputs.

Fault In Force mode, system detects a out-of-range PD

Legacy Powered In Force mode, system detects a Legacy PD

Potential Legacy PD In 802.3 af/at or High Power mode, system detects a potential legacy PD. No

PoE power outputs.

Port Description

Item Description

Status Indicates if the PoE function is enable

Power Output Indicates the power output of each PoE port

Class Indicates the classification of each PoE port

Current (mA) Indicates the actual Current consumed value of each PoE port

Voltage (V) Indicates the actual Voltage consumed value of each PoE port

Consumption (Watts) Indicates the actual Power consumed value of each PoE port

PD Failure Check Status Indicates the PD Failure Check status of each PoE port.

Alive: The PD is pinged by system continuously

Not Alive: The PD is not pinged by system

Disable: The PD Failure Check is not activated

PoE System Status

Monitoring Configuration

Refresh Rate

Setting Description Factory Default

5 to 300 The period of time which the system refreshes the PoE

System Status

System Power Status

System power status allows users to view a graph which includes Sum of measured power, Sum of

allocated power, and Max of allocated power. Sum of measured power (in pink color) indicates total

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measured power of PDs, Sum of allocated power (in blue color) indicates total allocated power, and Max of

allocated power (in red color) indicates the threshold of total PoE power output. The graph displays these

powers by showing Current (mA) versus Sec. (second), and it is refreshed frequently by the Refresh Rate.

Using Traffic Prioritization

The Moxa switch’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. The Moxa switch 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. The Moxa switch’s QoS

capability improves the performance and determinism of industrial networks for mission critical applications.

The Traffic Prioritization Concept

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:

• Improve network performance by controlling a wide variety of traffic and managing congestion.

• Assign priorities to different categories of traffic. For example, set higher priorities for time-critical or

business-critical applications.

• Provide predictable throughput for multimedia applications, such as video conferencing or voice over IP,

and minimize traffic delay and jitter.

• Improve network performance as the amount of traffic grows. Doing so will reduce costs since it will not be

necessary to keep adding bandwidth to the network.

Traffic prioritization uses the four traffic queues that are present in your Moxa switch to ensure that high

priority traffic is forwarded on a different queue from lower priority traffic. Traffic prioritization provides Quality

of Service (QoS) to your network.

Moxa switch traffic prioritization depends on two industry-standard methods:

• IEEE 802.1D—a layer 2 marking scheme.

• 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. The priority marking scheme determines the level of service that this 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.

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

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Even though the IEEE 802.1D standard is the most widely used prioritization scheme in the LAN environment,

it still has some restrictions:

• It requires an additional 4-byte tag in the frame, which is normally optional for Ethernet networks. Without

this tag, the scheme cannot work.

• 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 that allows you to

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.

The advantages of DiffServ over IEEE 802.1D are:

• You can configure how you want your switch to treat selected applications and types of traffic by assigning

various grades of network service to them.

• No extra tags are required in the packet.

• DSCP uses the IP header of a packet to preserve priority across the Internet.

• DSCP is backwards compatible with IPV4 TOS, which allows operation with existing devices that use a layer

3 TOS enabled prioritization scheme.

Traffic Prioritization

Moxa switches classify 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:

• A packet received by the Moxa switch 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.

• 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 Moxa switch will check a packet received at the ingress port for IEEE 802.1D traffic classification, and

then prioritize it based on 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 hardware of Moxa switches has multiple traffic queues that allow packet prioritization to occur. Higher

priority traffic can pass through the Moxa switch without being delayed by lower priority traffic. As each packet

arrives in the Moxa switch, 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. Moxa switches support two different queuing mechanisms:

• Weight Fair: This method services all the traffic queues, giving priority to the higher priority queues.

Under most circumstances, the Weight Fair method gives high priority precedence over low priority, but in

the event that high priority traffic does not reach the link capacity, lower priority traffic is not blocked.

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

priority data needs to be sent. The Strict method always gives precedence to high priority over low priority.

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Configuring Traffic Prioritization

Quality of Service (QoS) provides a traffic prioritization capability to ensure that important data is delivered

consistently and predictably. The Moxa switch 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. The Moxa switch’s QoS capability

improves your industrial network’s performance and determinism for mission critical applications.

QoS

The Moxa PowerTrans Series switch provides IEC 61850 Quality of Service (QoS). Once you enable IEC

61850 QoS, the packet priority of GOOSE/SMV/PTP is higher than other packets’ type.

Enable Packet Priority

Setting Description Factory Default

Enable IEC 61850 QoS Enables or disables IEC 61850 OoS function. disables

GOOSE

Setting Description Factory Default

High/Medium/Normal/

Low

The priority sequence is High>Medium>Normal>Low. We

recommend setting GOOSE packet as high priority.

High

SMV

Setting Description Factory Default

High/Medium/Normal/

Low

The priority sequence is High>Medium>Normal>Low. We

recommend setting SMV packet as high priority.

High

PTP

Setting Description Factory Default

High/Medium/Normal/

Low

The priority sequence is High>Medium>Normal>Low. High

QoS Classification

There are two QoS classification settings depending on the specific model of the switch.

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Type Models Supported

Type 1 EDS-400A series, EDS-505A/508A/510A/G509, EDS-P506A-4PoE/P510/P510A-8PoE,

EDS-600 series, IKS-G6524/G6824, ICS-G7000 series

Type 2 EDS-516A/518A, EDS-728/828, IKS-6726/6726-8PoE/6728

Type1

The Moxa switch supports inspection of layer 3 TOS and/or layer 2 CoS tag information to determine how to

classify traffic packets.

Queuing Mechanism

Setting Description Factory Default

Weight Fair The Moxa switch has 4 priority queues. In the weight fair

scheme, an 8, 4, 2, 1 weighting is applied to the four pr

iorities.

This approach prevents the lower priority frames from being

starved of opportunity for transmission with only a slight delay

to the higher priority frames.

Weight Fair

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 that all high priority frames will egress

the switch as soon as possible.

Inspect TOS

Setting Description Factory Default

Enable/Disable Enables or disables the Moxa switch for inspecting Type of

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

each frame.

Enabled

Inspect COS

Setting Description Factory Default

Enable/Disable

Enables or disables the Moxa switch for inspecting 802.1p COS

tags in the MAC frame to determine the priority of each frame.

Enabled

Inspect Port Priority

Setting Description Factory Default

Port priority The port priority has 4 priority queues. Low, normal, medium,

high priority queue option is applied to each port.

3(Normal)

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NOTE

The priority of an ingress frame is determined in the following order:

1. Inspect TOS

2. Inspect CoS

3. Port Priority

NOTE

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.

Type 2

Queuing Mechanism

Setting Description Factory Default

Weight Fair The Moxa switch has 4 priority queues. In the weight fair

scheme, an 8, 4, 2, 1 weighting is applied to t

he 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.

Weight Fair

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 that all high priority frames will egre

the switch as soon as possible.

Inspect Port Highest Priority

Setting Description Factory Default

Enable/Disable Enables or disables the priority inspection of each port Disabled

Inspect TOS

Setting Description Factory Default

Enable/Disable Enables or disables the Moxa switch for inspecting Type of

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

each frame.

Enabled

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Inspect COS

Setting Description Factory Default

Enable/Disable Enables or disables the Moxa switch for inspectin

g 802.1p COS

tags in the MAC frame to determine the priority of each frame.

Enabled

NOTE

The priority of an ingress frame is determined in the following order:

1. Port Highest Priority

2. Inspect TOS

3. Inspect CoS

CoS Mapping

CoS Value and Priority Queues

Setting Description Factory Default

Low/Normal/

Medium/High

Maps different CoS values to 4 different egress queues. 0: Low

1: Low

2: Normal

3: Normal

4: Medium

5: Medium

6: High

7: High

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TOS/DiffServ Mapping

ToS (DSCP) Value and Priority Queues

Setting Description Factory Default

Low/Normal/

Medium/High

Maps 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 Moxa switch 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. With VLANs you can segment your network according

into:

• Departmental groups—You could have one VLAN for the marketing department, another for the finance

department, and another for the product development department.

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

general staff.

• Usage groups—You could have one VLAN for email users and another for multimedia users.

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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:

• 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 orignally on VLAN Marketing,

for example, is moved to a port on 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 do any re-cabling.

• 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.

• 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 the Rackmount switch

Your Moxa switch 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 Moxa switch to be placed as follows:

• On a single VLAN defined in the Moxa switch

• On several VLANs simultaneously using 802.1Q tagging

The standard requires that you define the 802.1Q VLAN ID for each VLAN on your Moxa switch before the switch

can use it to forward traffic:

Managing a VLAN

A new or initialized Moxa switch contains a single VLAN—the Default VLAN. This VLAN has the following

definition:

• VLAN Name—Management VLAN

• 802.1Q VLAN ID—1 (if tagging is required)

All the ports are initially placed on this VLAN, and it is the only VLAN that allows you to access the management

software of the Moxa switch over the network.

1 2 3 4 5 6 7

Switch A

Switch B

Department 1 VLAN 1

Department 2 VLAN 2

Department 3 VLAN 3

Backbone connects multiple switches

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Communication Between VLANs

If devices connected to a VLAN need to communicate to devices on a different VLAN, a router or Layer 3

switching device with connections to both VLANs needs to be installed. Communication between VLANs can

only take place if they are all connected to a routing or Layer 3 switching device.

VLANs: Tagged and Untagged Membership

The Moxa switch supports 802.1Q VLAN tagging, a system that allows traffic for multiple VLANs to be carried

on a single physical link (backbone, trunk). 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 an Access Port in a Moxa

switch, while inter-switch connections will be tagged members of all VLANs, defined as a Trunk Port in a Moxa

switch.

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 link (backbone, trunk), 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.

The Moxa switch supports three types of VLAN port settings:

• 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), the Moxa switch will insert this

PVID into this packet so the next 802.1Q VLAN switch can recognize it.

• 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 a PVID to a Trunk

Port. The untagged packet on the Trunk Port will be assigned the port default PVID as its VID.

• Hybrid Port: The port is similar to a Trunk port, except users can explicitly assign tags to be removed from

egress packets.

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

Sample Applications of VLANs Using Moxa Switches

In this application,

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• Port 1 connects a single untagged device and assigns it to VLAN 5; it should be configured as Access Port

with PVID 5.

• Port 2 connects a LAN with two untagged devices belonging to VLAN 2. One tagged device with VID 3 and

one tagged device with VID 4. It should be configured as Trunk Port with PVID 2 for untagged device and

Fixed VLAN (Tagged) with 3 and 4 for tagged device. Since each port can only have one unique PVID, all

untagged devices on the same port must belong to the same VLAN.

• Port 3 connects with another switch. It should be configured as Trunk Port GVRP protocol will be used

through the Trunk Port.

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

with PVID 2.

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

with PVID 3.

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

with PVID 5.

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

with PVID 4.

After the application is properly configured:

• 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.

• Packets from Devices 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.

• 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.

• Packets from Device E will travel through Trunk Port 3 with tagged VID 4. Switch B will recognize its VLAN,

pass it to port 7, and then remove tags received successfully by Device I. Packets from Device I will travel

through Trunk Port 3 with tagged VID 4. Switch A will recognize its VLAN and pass it to port 2, but will not

remove tags received successfully by Device E.

Configuring Virtual LAN

VLAN Settings

To configure 802.1Q VLAN and port-based VLANs on the Moxa switch, use the VLAN Settings page to

configure the ports.

VLAN Mode

Setting Description Factory Default

802.1Q VLAN Set VLAN mode to 802.1Q VLAN 802.1Q VLAN

Port-based VLAN Set VLAN mode to Port-based VLAN

Unaware VLAN Set VLAN mode to Unaware VLAN

NOTE

Only

EDS-728 and IKS-6726/6728 provides the Unaware VLAN function.

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802.1Q VLAN Settings

Management VLAN ID

Setting Description Factory Default

VLAN ID from 1 to 4094 Assigns the VLAN ID of this Moxa switch. 1

Port Type

Setting Description Factory Default

Access Port type is used to connect single devices without tags. Access

Trunk Select Trunk port type to

connect another 802.1Q VLAN aware

switch

Hybrid Select Hybrid port to connect another Access 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 t

he 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 Moxa switch units.

Port PVID

Setting Description Factory Default

VID ranges from 1 to

4094

ets the default VLAN ID for untagged devices that connect to

the port.

Fixed VLAN List (Tagged)

Setting Description Factory Default

VID ranges from 1 to

4094

This field will be active only when selecting the Trunk or Hybrid

port type. Set the other VLAN ID for tagged devices that

connect to the port. Use commas to separate different VIDs.

None

Fixed VLAN List (Untagged)

Setting Description Factory Default

VID range from 1 to

4094

This field will be active only when selecting the Hybrid

port type. Set the other VLAN ID for tagged devices that

connect to the port and tags that

need to be removed in egress

packets. Use commas to separate different VIDs.

None

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Forbidden VLAN List

Setting Description Factory Default

VID ranges from 1 to

4094

This field will be active only when selecting the Trunk or Hybrid

port type. Set the other VLAN IDs that will not be supported by

this port. Use commas to separate different VIDs.

None

Port-Based VLAN Settings

Check each specific port to assign its VLAN ID in the table. The maximum VLAN ID is the same as your number

of switch ports.

Unaware VLAN Settings

The Unaware VLAN function provides users a flexible operation in a VLAN network. Switches which are set on

Unaware VLAN mode do not check the VLAN tags of input Ethernet frame. All of VLAN tags can always in and

out of the Unaware VLAN switch, and the switch won’t affect the VLAN tags of Ethernet frames.

NOTE

When users enable

Unaware VLAN function, all of ports are set as unaware VLAN ports.

QinQ Setting

NOTE

Moxa layer 3

switches provide the IEEE 802.1ad QinQ function. T

his function allows users to tag double VLAN

headers into one single Ethernet frame

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QinQ Enable

Setting Description Factory Default

Enable/Disable Enable VLAN QinQ function Disable

TPID

Setting Description Factory Default

8100 to FFFF Assign the TPID of the second VLAN tag 8100

VLAN Table

Use the 802.1Q VLAN table to review the VLAN groups that were created, Joined Access Ports, Trunk

Ports, and Hybrid Ports, and use the Port-based VLAN table to review the VLAN group and Joined Ports.

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NOTE

Most Moxa managed switches have a maximum of 64 VLAN settings. However, the IKS-G6524/G6824 and

ICS

-G7000 series support up to 256 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 Moxa switch.

The Concept of Multicast Filtering

What is an IP Multicast?

A multicast is a packet sent by one host to multiple hosts. Only those hosts that belong to a specific multicast

group will receive the multicast. If the network is set up correctly, a multicast can only be sent to an end-station

or a subset of end-stations on a LAN or VLAN that belong to the multicast group. Multicast group members can

be distributed across multiple subnets, so that multicast transmissions can occur within a campus LAN or over

a WAN. In addition, networks that support IP multicast send only one copy of the desired information across the

network until the delivery path that reaches group members diverges. To make more efficient use of network

bandwidth, it is only at these points that multicast packets are duplicated and forwarded. A multicast packet

has a multicast group address in the destination address field of the packet’s IP header.

Benefits of Multicast

The benefits of using IP multicast are:

• It uses the most efficient, sensible method to deliver the same information to many receivers with only one

transmission.

• It reduces the load on the source (for example, a server) since it will not need to produce several copies of

the same data.

• It makes efficient use of network bandwidth and scales well as the number of multicast group members

increases.

• Works with other IP protocols and services, such as Quality of Service (QoS).

Multicast transmission makes more sense and is more efficient than unicast transmission for some applications.

For example, multicasts are often used for video-conferencing, since high volumes of traffic must be sent to

several end-stations at the same time, but where broadcasting the traffic to all end-stations would cause a

substantial reduction in network performance. Furthermore, several industrial automation protocols, such as

Allen-Bradley, EtherNet/IP, Siemens Profibus, and Foundation Fieldbus HSE (High Speed Ethernet), use

multicast. These industrial Ethernet protocols use publisher/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.

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Network without multicast filtering

All hosts receive the multicast

traffic, even if they don’t need it.

Network with multicast filtering

Hosts only receive dedicated

traf

fic from other hosts

belonging to the same group.

Multicast Filtering and Moxa’s Industrial Rackmount Switches

The Moxa switch 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.

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.

IGMP Snooping Enhanced Mode

Snooping Enhanced Mode allows your switch to forward multicast packets to the Moxa switch’s member port

only. If you disable Enhanced Mode, data streams will run to the querier port as well as the member port.

Query Mode

Query mode allows the Moxa switch to work as the Querier if it has the lowest IP address on the subnetwork to

which it belongs.

NOTE

IGMP Snooping Enhanced mode is only provided in Layer 2 switches.

IGMP querying is enabled by default on the Moxa switch to ensure proceeding query election. Enable query

mode to run multicast sessions on a network that does not contain IGMP routers (or queriers). Query mode

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allows users to enable IGMP snooping by VLAN ID. Moxa switches support IGMP snooping version 1, version 2

and version 3. Version 2 is compatible with version 1.The default setting is IGMP V1/V2. "

NOTE

Moxa Layer 3 switches

are compatible with any device that conforms to the IGMP v2 and IGMP v3 device

protocols. Layer 2 switches only support IGMP v1/v2.

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. Moxa switches support IGMP version 1, 2 and 3. IGMP version 1 and 2 work as follows::

• 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.

• 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.

• 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.

• When the router receives the report packet, it registers that the LAN or VLAN requires traffic for the

multicast groups.

• 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.

IGMP version 3 supports “source filtering,” which allows the system to define how to treat packets from

specified source addresses. The system can either white-list or black-list specified sources.

IGMP version comparison

IGMP Version Main Features Reference

V1 a. Periodic query RFC-1112

V2 Compatible with V1 and adds:

a. Group-specific query

b. Leave group messages

c. Resends specific queries to verify leave message was the last one in

the group

d. Querier election

RFC-2236

V3 Compatible with V1, V2 and adds:

a. Source filtering

- accept multicast traffic from specified source

- accept multicast traffic from any source except the specified source

RFC-3376

GMRP (GARP Multicast Registration Protocol)

Moxa switches support IEEE 802.1D-1998 GMRP (GARP Multicast Registration Protocol), which is different from

IGMP (Internet Group Management Protocol). GMRP is a MAC-based multicast management protocol, whereas

IGMP is IP-based. GMRP provides a mechanism that allows bridges and end stations to register or de-register

Group membership information dynamically. GMRP functions similarly to GVRP, except that GMRP registers

multicast addresses on ports. When a port receives a GMRP-join message, it will register the multicast

address to its database if the multicast address is not registered, and all the multicast packets with that

multicast address are able to be forwarded from this port. When a port receives a GMRP-leave message, it will

de-register the multicast address from its database, and all the multicast packets with this multicast address

will not be able to be forwarded from this port.

Static Multicast MAC

Some devices may only support multicast packets, but not support either IGMP Snooping or GMRP. The Moxa

switch supports adding multicast groups manually to enable multicast filtering.

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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.

Layer 2 switch setting page

Layer 3 switch setting page

IGMP Snooping Enable

Setting Description Factory Default

Enable/Disable Checkmark the IGMP Snooping Enable checkbox near the

top of the window to enable the IGMP Snooping function

globally.

Disabled

NOTE: You should enable IGMP Snooping if the network also uses non-Moxa 3rd party switches.

Query Interval

Setting Description Factory Default

Numerical value, input

by the user

Sets the query interval of the Querier function globally. Valid

settings are from 20 to 600 seconds.

125 seconds

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IGMP Snooping Enhanced Mode

Setting Description Factory Default

Enable IGMP Multicast packets will be forwarded to:

• Auto-Learned Multicast Querier Ports

• Member Ports

Disable

Disable IGMP Multicast packets will be forwarded to:

• Auto-Learned Multicast Router Ports

• Static Multicast Querier Ports

• Querier Connected Ports

• Member Ports

NOTE: IGMP Snooping Enhanced Mode in networks composed entirely of Moxa switches

IGMP Snooping

Setting Description Factory Default

Enable/Disable Enables or disables the IGMP Snooping function on that

particular VLAN.

Enabled if IGMP

Snooping is enabled

globally

Querier

Setting Description Factory Default

Enable/Disable Enables or disables the Moxa switch’s querier function. Enabled if IGMP

Snooping is enabled

globally

V1/V2 and V3 checkbox V1/V2: Enables switch to send IGM

P snooping version 1 and 2

queries

V3: Enables switch to send IGMP snooping version 3 queries

V1/V2

Static Multicast Querier Port

Setting

Description

Factory Default

Select/Deselect Select the ports that will connect to the multicast routers.

These ports will receive all multicast packets from the source.

This option is only active when IGMP Snooping is enabled.

Disabled

NOTE

If a router or layer 3 switch is connected to the network, it will act as the Querier, and consequently this

Querier option will

be disabled on all Moxa layer 2 switches.

If all switches on the network are Moxa layer 2 switches, then only one layer 2 switch will act as Querier.

IGMP Table

The Moxa switch displays the current active IGMP groups that were detected. View IGMP group setting per

VLAN ID on this page.

Layer 2 switch page

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Layer 3 switch page

The information shown in the table includes:

• Auto-learned Multicast Router Port: This indicates that a multicast router connects to/sends packets from

these port(s)

• Static Multicast Router Port: Displays the static multicast querier port(s)

• Querier Connected Port: Displays the port which is connected to the querier.

• Act as a Querier: Displays whether or not this VLAN is a querier (winner of a election).

Current Active IGMP Streams

This page displays the multicast stream forwarding status. It allows you to view the status per VLAN ID.

Stream Group: Multicast group IP address

Stream Source: Multicast source IP address

Port: Which port receives the multicast stream

Member ports: Ports the multicast stream is forwarded to.

NOTE

The IGMP stream table is supported only in Layer 3 switches

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Static Multicast MAC Addresses

Layer 2 switch page

Layer 3 switch page

NOTE: 01:00:5E:XX:XX:XX on this page is the IP multicast MAC address. Please activate IGMP Snooping for

automatic classification.

Add New Static Multicast Address to the List

Setting Description Factory Default

MAC Address

Input the multicast MAC address of this host.

None

MAC Address

Setting Description Factory Default

Integer Input the number of the VLAN that the host with this MAC

address belongs to.

None

Join Port

Setting Description Factory Default

Select/Deselect

Checkmark the appropriate check boxes to select the join ports

for this multicast group.

None

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Configuring GMRP

GMRP is a MAC-based multicast management protocol, whereas IGMP is IP-based. GMRP provides a

mechanism that allows bridges and end stations to register or un-register Group membership information

dynamically.

GMRP enable

Setting Description Factory Default

Enable/Disable Enables or disables the GMRP function for the port listed in the

Port column

Disable

GMRP Table

The Moxa switch 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.

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Multicast Filtering Behavior

Setting Description Factory Default

Multicast Filtering

Behavior

Define the multicast filtering behavior by three options:

Forward All: flood all multicast packets to the VLAN of the

network.

Forward Unknown: flood unknown multicast packets to the

VLAN while known multicast packets are sent to the indicated

groups.

Filter Unknown: drop unknown multicast packets and only send

known multicast packets to indicated groups.

Forward Unknown

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. Moxa industrial Ethernet switches 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

Please note that two types of bandwidth management settings are available, depending on the specific model

of switch.

Type Models Supported

Type 1 EDS-400A series, EDS-505A/508A/510A/G509, EDS-P506A-4PoE/P510/P510A-8PoE,

EDS-600 series, IKS-G6524/G6824, ICS-G7000 series

Type 2 EDS-516A/518A, EDS-728/828, IKS-6726/6726-8PoE/6728

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Type 1

Traffic Rate Limiting Settings

Control Mode Description Factory Default

Normal Set the max. ingress rate limit for different packet types

Normal

Port Disable When the ingress multicast and broadcast packets exceed the

ingress rate limit, the port will be disabled for a certain period.

During this period, all packets from this port will be discarded.

Ingress Rate Limit - Normal

Policy Description Factory Default

Limit All

Select the ingress rate limit for different

packet types from the following options:

Not Limited, 128K, 256K, 512K, 1M, 2M,

4M, 8M

Limit Broadcast 8M

Limit Broadcast, Multicast, Flooded Unicast

Limit Broadcast, Multicast

Limit Broadcast

Ingress Rate Limit – Port Disable

Setting Description Factory Default

Port disable duration (1~65535

seconds)

When the ingress multicast and broadcast packets

exceed the ingress rate limit, the port will be disabled

for this period of time. During this time, all packets

from this port will be discarded.

30 second

Ingress (fps)

Select the ingress rate (fps) limit for all packets from

the following options: Not Limited, 4464, 7441,

14881, 22322, 37203, 52084, 74405

Not Limited

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Egress Rate Limit

Setting Description Factory Default

Egress rate

Select the ingress rate limit (% of max. throughput) for

all packets from the following options: Not Limited

, 3%,

5%, 10%, 15%, 25%, 35%, 50%, 65%, 85%

Not Limited

Type 2

Broadcast Storm Protection

Setting Description Factory Default

Storm Rate Limit Select the storm rate limit from the following options:

64k, 128k, 256k, 512k, 1M, 2M, 4M, 8M, 16M, or 32M.

256bps

Enable/Disable This enables or disables Broadcast Storm Protection for

unknown broadcast packet globally

Enable

This enables or disables Broadcast Storm Protection for

unknown multicast packets and unicast packets

globally

Disable

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Traffic Rate Limiting Settings

Ingress and Egress Rate Limit - Normal

Setting Description Factory Default

Ingress rate Select the ingress/egress rate limit (% of max.

throughput) for all packets from the following options:

Not Limited, 3%, 5%, 10%, 15%, 25%, 35%, 50%,

65%, 85%

Not Limited

Egress rate

Ingress Rate Limit – Port Disable

Setting

Description

Factory Default

Period (1~65535 seconds) When the ingress packets exceed the ingress rate limit,

the port will be disabled for a certain period.

30 seconds

Ingress (frame per second) Select the ingress rate (fps) limit for all packets from the

following options: Not Limited, 4464, 7441, 14881,

22322, 37203, 52084, 74405

Not Limited

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Unicast Filter Behavior

NOTE: These functions are supported in the EDS-728/828 and rackmount switches.

When a switch receives an unknown unicast packet, it will flood it to all ports in the LAN. The Unicast Filter

Behavior function provides a mechanism to prevent switch flooding of these unknown unicast packets. Select

this check box to activate this filter behavior.

Setting Description Factory Default

Enable Filter

unknown

Unicast

Enable this function to prevent unknown unicast packets

from flooding to all ports in the VLAN

Disable

Security

NOTE: Security functions not supported in EDS-400A series.

Security can be categorized in two levels: the user name/password level, and the port access level. For user

name/password level security, Moxa switches provide two different user login options: Terminal Access

Controller Access-Control System Plus (TACACS+) and Remote Authentication Dial In User Service (RADIUS).

The TACACS+ and RADIUS mechanism is a centralized “AAA” (Authentication, Authorization and Accounting)

system for connecting to network services. The fundamental purpose of both TACACS+ and RADIUS is to

provide an efficient and secure mechanism for user account management.

User Login Authentication – User Login Settings

Both TACAS+ and RADIUS are options here.

User Login Authentication – Auth Server Setting

The detailed configuration settings of TACACS+ and RADIUS are displayed in the table below:

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Setting Description Factory Default

Server Type Authentication server types selection TACACS+

Server IP/Name Set IP address of an external TACACS+/RADIUS server as

the authentication database

Localhost

Server Port Set communication port of an external TACACS+/

RADIUS

server as the authentication database

TACACS+ : 49

RADIUS : 1812

Server Shared Key Set specific characters for server authentication

verification

None

Authentication Type The authentication mechanism isEAP-MD5 for RADIUS ASCII for TACACS+

Server Timeout The timeout period to wait for a server response TACACS+ : 30

RADIUS : 5

Authentication Certificate

The switch offers two methods to encrypt the communication: SSL Certificate and SSH Key. You can only use

one of the encryption types at the same time. SSL (Secure Socket Layer) is mainly for web communication

security. It secures the data between two application points. SSH (Secure Shell) is a security protocol based on

the Application Layer and Transport Layer. It encrypts the data for security.

NOTE

The switch only support

s one type of the Authentication Certificate at a time.

Check the Authentication Certificate, and then click Activate to complete.

Using Port Access Control

The Moxa switch provides two kinds of Port-Based Access Control: Static Port Lock and IEEE 802.1X.

Static Port Lock

In this case, the Moxa switch 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.

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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.

Three components are used to create an authentication mechanism based on 802.1X standards:

Client/Supplicant, Authentication Server, and Authenticator.

Client/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.

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.

The Moxa switch acts as an authenticator in the 802.1X environment. A supplicant and an authenticator

exchange EAPOL (Extensible Authentication Protocol over LAN) frames with each other. We can either use an

external RADIUS server as the authentication server, or implement the authentication server in the Moxa

switch 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.

Configuring Static Port Lock

The Moxa switch supports adding unicast groups manually if required.

Static Unicast MAC Address

Setting Description Factory Default

MAC Address Adds the static unicast MAC address into the address table. None

Port Associates the static address to a dedicated port. 1 or 1-1

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Configuring IEEE 802.1X

Database Option

Setting Description Factory Default

Local

(Max. of 32 users)

Select this option when setting the Local User Database as the

authentication database.

Local

Radius Select this option to set an external RADIUS server as the

authentication database. The authentication mechanism is

EAP-MD5.

Local

Radius, Local

Select this option to make using an external RADIUS 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.

Local

Radius Server

Setting

Description

Factory Default

IP address or domain

name

The IP address or domain name of the RADIUS server local host

Server Port

Setting Description Factory Default

Numerical

The UDP port of the RADIUS server

1812

Shared Key

Setting Description Factory Default

alphanumeric (Max. of

40 characters)

A key to be shared between the external RADIUS server and

Moxa switch. Both ends must be configured to use the same

key.

None

Re-Auth

Setting Description Factory Default

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

preset time period of no activity has elapsed.

Disable

Re-Auth Period

Setting Description Factory Default

Numerical

(60 to 65535 sec.)

Specify how frequently the end stations need to reenter

usernames and passwords in order to stay connected.

3600

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802.1X

Setting Description Factory Default

Enable/Disable Checkmark the checkbox 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

802.1X Re-Authentication

The Moxa switch can force connected devices to be re-authorized manually.

802.1X Re-Authentication

Setting Description Factory Default

Enable/Disable Enables or disables 802.1X Re-Authentication Disable

Local User Database Setup

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

Local User Database Setup

Setting Description Factory Default

User Name

(Max. of 30 characters)

User Name for the Local User Database None

Password

(Max. of 16 characters)

Password for the Local User Database None

Description

(Max. of 30 characters)

Description for the Local User Database None

NOTE

The us

er name for the Local User Database is case-insensitive.

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Dot1X Radius Server Setting

Same as Auth Server Setting

Setting Description Factory Default

Enable/Disable Enable to use the same setting as Auth Server Disable

Server Setting

Setting Description Factory Default

Server IP/Name Specifies the IP/name of the server localhost

Server Port Specifies the port of the server 1812

Server Shared Key Specifies the shared key of the server None

Port Access Control Table

The port status will show authorized or unauthorized.

Using Auto Warning

Since industrial Ethernet devices are often located at the endpoints of a system, these devices will not always

know what is happening elsewhere on the network. This means that an industrial Ethernet switch that connects

to these devices must provide system maintainers with real-time alarm messages. Even when control

engineers are out of the control room for an extended period of time, they can still be informed of the status of

devices almost instantaneously when exceptions occur. The Moxa switch 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:

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Configure 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).

Configure Email Settings

To configure a Moxa switch’s email setup from the serial, Telnet, or web console, enter your Mail Server

IP/Name (IP address or name), Account Name, Account Password, Retype New Password, and the email

address to which warning messages will be sent.

Activate your settings and if necessary, test the email

After configuring and activating your Moxa switch’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.

Configuring 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 Events Warning e-mail is sent when…

Switch Cold Start Power is cut off and then reconnected.

Switch Warm Start Moxa switch is rebooted, such as when network parameters are changed

(IP address, subnet mask, etc.).

Power Transition (OnOff)

Moxa switch is powered down.

Power Transition (OffOn)

Moxa switch is powered up.

Configuration Change Activated Any configuration item has been changed.

Authentication Failure An incorrect password was entered.

Comm. Redundancy Topology

Changed

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.

Fiber Warning Fiber port is over or under the threshold.

Port Events Warning e-mail is sent when…

Link-ON The port is connected to another device.

Link-OFF The port is disconnected (e.g., the cable is pulled out, or the opposing

device shuts down).

Traffic-Overload The port’s traffic surpasses the Traffic-Threshold for that port (provided

this item is Enabled).

Traffic-Threshold (%) Enter a nonzero number if the port’s Traffic-Overload item is Enabled.

Traffic-Duration (sec.) A Traffic-Overload warning is sent every Traffic-Duration seconds if the

average Traffic-Threshold is surpassed during that time period.

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NOTE

The Traffic

-Overload, Traffic-Threshold (%), and Traffic-Duration (sec

.) Port Event items are related. If you

Enable the Traffic

-Overload event, then be sure to enter a nonzero Traffic-

Threshold percentage, as well as a

Traffic

-Duration between 1 and 300 seconds.

NOTE

The sender of warning e

-mail messages will have the following form:

Managed-Redundant-Switch-00000@Switch_Location

where Managed

-Redundant-Switch-00000 is the default Switch Name, 00000 is the Moxa switch’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.

Configuring Email Settings

Mail Server IP/Name

Setting Description Factory Default

IP address The IP Address of your email server. None

SMTP Port

Setting Description Factory Default

SMTP port Display the SMTP port number 25

Account Name

Setting Description Factory Default

Max. 45 of charters Your email account. None

Password Setting

Setting Description Factory Default

Disable/Enable to

change password

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

Activate (Max. of 45 characters).

Disable

Old password Type the current password when changing the password None

New password Type new password when enabled to change password; Max.

45 characters.

None

Retype password If you type a new password in the Password field, you will be

required to retype the password in the Retype new password

field before updating the new password.

None

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Email Address

Setting Description Factory Default

Max. of 30 characters You can set up to 4 email addresses to receive alarm emails

from the Moxa switch.

None

Send Test Email

After you complete the email settings, you should first click Activate to activate those settings, and then press

the Send Test Email button to verify that the settings are correct.

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:

Configure 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).

Activate your settings

After completing the configuration procedure, you will need to activate your Moxa switch’s Relay Event Types.

Configuring 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.

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The Moxa switch supports two relay outputs. You can configure which relay output is related to which events,

which helps administrators identify the importance of the different events.

System Events Warning Relay output is triggered when…

Power Transition (On -> Off) Moxa switch is powered down

Power Transition (Off -> On) Moxa switch is powered up

Turbo Ring Break The Turbo Ring is broken. Only the MASTER switch of Turbo Ring will output

warning relay.

Fiber Warning Fiber port is over or under threshold

Port Events Warning e-mail is sent when…

Link-ON

The port is connected to another device.

Link-OFF

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

shuts down).

Traffic-Overload The port’s traffic surpasses the Traffic-Threshold for that port (provided this

item is Enabled).

Traffic-Threshold (%) Enter a nonzero number if the port’s Traffic-Overload item is Enabled.

Traffic-Duration (sec.) A Traffic-Overload warning is sent every Traffic-Duration seconds if the

average Traffic-Threshold is surpassed during that time period.

Override relay alarm settings

Check the checkbox to override the relay warning setting temporarily. Releasing the relay output will allow

administrators to fix any problems with the warning condition

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 List

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

Using Line-Swap-Fast-Recovery

The Line-Swap Fast Recovery function, which is enabled by default, allows the Moxa switch 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.

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Configuring Line-Swap Fast Recovery

Enable Line-Swap-Fast-Recovery

Setting Description Factory Default

Enable/Disable Checkmark the checkbox to enable the

Line-Swap-Fast-Recovery function

Enable

Using Set Device IP

To reduce the effort required to set up IP addresses, the Moxa switch 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 the Moxa switch to assign specific IP addresses automatically

to connected devices that are equipped with DHCP Client or RARP protocol. In effect, the Moxa switch acts as

a DHCP server by assigning a connected device with a specific IP address stored in its internal memory. Each

time the connected device is switched on or rebooted, the Moxa switch sends the device the desired IP address.

Take the following steps to use the Set device IP function:

STEP 1

—Set up the connected devices

Set up those Ethernet

-enabled devices connected to the Moxa switch

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 the

Obtain an IP address

automatically

option.

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 als

o need to decide which of the Moxa switch’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 the Moxa switch’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.

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Configuring Set Device IP

Automatic “Set Device IP” by DHCP/BootP/RARP

Desired IP Address

Setting Description Factory Default

IP Address Set the desired IP of connected devices. None

Option 82 is used by the relay agent to insert additional information into the client’s DHCP request. The Relay

Agent Information option is inserted by the DHCP relay agent when forwarding client-originated DHCP packets

to a DHCP server. Servers can recognize the Relay Agent Information option and use the information to

implement IP addresses to Clients.

When Option 82 is enabled on the switch, a subscriber device is identified by the switch port through which it

connects to the network (in addition to its MAC address). Multiple hosts on the subscriber LAN can be connected

to the same port on the access switch and are uniquely identified.

The Option 82 information contains 2 sub-options, Circuit ID and Remote ID, which define the relationship

between the end device IP and the DHCP Option 82 server. The Circuit ID is a 4-byte number generated by the

Ethernet switch—a combination of physical port number and VLAN ID. The format of the Circuit ID is shown

below:

FF–VV–VV–PP

This is where the first byte “FF” is fixed to “01”, the second and the third byte “VV-VV” is formed by the port

VLAN ID in hex, and the last byte “PP” is formed by the port number in hex. For example:

01–00–0F–03 is the “Circuit ID” of port number 3 with port VLAN ID 15.

The “Remote ID” identifies the relay agent itself and can be one of the following:

1. The IP address of the relay agent.

2. The MAC address of the relay agent.

3. A combination of IP address and MAC address of the relay agent.

4. A user-defined string.

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Configuring DHCP Relay Agent

Server IP Address

1st Server

Setting Description Factory Default

IP address for the 1st

DHCP server

Assigns the IP address of the 1st DHCP server that the switch

tries to access.

None

2nd Server

Setting Description Factory Default

IP address for the 2nd

DHCP server

Assigns the IP address of the 2nd DHCP server that the swit

tries to access.

None

3rd Server

Setting Description Factory Default

IP address for the 3rd

DHCP server

Assigns the IP address of the 3rd DHCP server that the switch

tries to access.

None

4th Server

Setting Description Factory Default

IP address for the 4th

DHCP server

Assigns the IP address of the 4th DHCP server that the switch

tries to access.

None

DHCP Option 82

Enable Option 82

Setting Description Factory Default

Enable or Disable Enable or disable the DHCP Option 82 function. Disable

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Type

Setting Description Factory Default

IP Uses the switch’s IP address as the remote ID sub. IP

MAC Uses the switch’s MAC address as the remote ID sub. IP

Client-ID

Uses a combination of the switch’s MAC address and IP address

as the remote ID sub.

Other Uses the user-designated ID sub. IP

Value

Setting Description Factory Default

Max. 12 characters Displays the value that was set. Complete this field if type is set

to Other.

Switch IP address

Display

Setting Description Factory Default

read-only The actual hexadecimal value configured in the DHCP server for

the Remote-ID. This value is automatically generated

according to the Value field. Users cannot modify it.

COA87FFD

DHCP Function Table

Enable

Setting Description Factory Default

Enable or Disable Enable or disable the DHCP Option 82 function for this port. Disable

Using Diagnosis

The Moxa switch provides three 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. Using a mirror port allows the network administrator to sniff the observed port to keep tabs

on network activity.

Please note that two types of mirror port settings are available, depending on the specific model of switch. In Type

1, the switches support multi-to-one and one-to-one mirror function. In Type 2, the switches support only

one-to-one mirror function.

Type Models Supported

Type 1 EDS-728/828, IKS-6726/6726-8PoE/6728/G6524/G6824, ICS-G7000 Series

Type 2

EDS 400A/500A/600 Series, EDS-P506A-4PoE/P510/P510A-8PoE/G509

Type 1

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Mirror Port Settings

Setting Description

Monitored Port Select the number of the ports whose network activity will be monitored.

Watch Direction Select one of the following two watch direction options:

 Input data stream:

Select this option to monitor only those data packets coming into the Moxa switch’s

port.

 Output data stream:

Select this option to monitor only those data packets being sent out through the

Moxa switch’s port.

 Bi-directional:

Select this option to monitor data packets both coming into, and being sent out

through, the Moxa switch’s port.

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

port.

NOTE: In Type 1 settings, users can select multiple monitored ports for port mirror function.

Type 2

Mirror Port Settings

Setting Description

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

Watch Direction Select one of the following two watch direction options:

 Input data stream:

Select this option to monitor only those data packets coming into the Moxa switch’s

port.

 Output data stream:

Select this option to monitor only those data packets being sent out through the

Moxa switch’s port.

 Bi-directional:

Select this option to monitor data packets both coming into, and being sent out

through, the Moxa switch’s port.

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

port.

NOTE: In Type 2 settings, users can select only one monitored port for port mirror function.

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

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PC keyboard, the actual ping command originates from the Moxa switch itself. In this way, the user can

essentially sit on top of the Moxa switch and send ping commands out through its ports.

To use the Ping function, type in the desired IP address, and then press Enter from the Console utility, or click

Ping when using the Web Browser interface.

LLDP Function

Overview

LLDP is an OSI Layer 2 protocol defined by IEEE 802.11AB. LLDP standardizes the self-identification

advertisement method, and allows each networking device, such as a Moxa managed switch, to periodically

send its system and configuration information to its neighbors. Because of this, all LLDP devices are kept

informed of each other’s status and configuration, and with SNMP, this information can be transferred to Moxa’s

MXview for auto-topology and network visualization.

From the switch’s web interface, you can enable or disable LLDP, and set the LLDP transmit interval. In addition,

you can view each switch’s neighbor-list, which is reported by its network neighbors. Most importantly,

enabling the LLDP function allows Moxa’s MXview to automatically display the network’s topology and system

setup details, such as VLAN and Trunking, for the entire network.

Configuring LLDP Settings

General Settings

LLDP

Setting Description Factory Default

Enable or Disable Enables or disables the LLDP function. Enable

Message Transmit Interval

Setting Description Factory Default

5 to 32768 sec. Sets the transmit interval of LLDP messages, in seconds. 30 (seconds)

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LLDP Table

The LLDP Table displays the following information:

Port The port number that connects to the neighbor device.

Neighbor ID A unique entity (typically the MAC address) that identifies a neighbor device.

Neighbor Port The port number of the neighbor device.

Neighbor Port Description

A textual description of the neighbor device’s interface.

Neighbor System Hostname of the neighbor device.

Using Monitor

You can monitor statistics in real time from the Moxa switch’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 the Moxa switch’s 18 ports. Click one of the

four options—Total Packets, TX Packets, RX Packets, or Error Packets—to view transmission activity of

specific types of packets. Recall that TX Packets are packets sent out from the Moxa switch, RX Packets are

packets received from connected devices, and Error Packets are packets that did not pass TCP/IP’s error

checking algorithm. The Total Packets option displays a graph that combines TX, RX, and TX Error, RX Error

Packets activity. The graph displays data transmission activity by showing Packets/s (i.e., packets per second,

or pps) versus sec. (seconds). In fact, three curves are 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.

Monitor by Port

Access the Monitor by Port function by selecting ALL 10/100M or 1G Ports or Port i, in which i = 1, 2, …, G2,

from the left pull-down list. The Port i options are identical to the Monitor by System function discussed above,

in that users can view graphs that show All Packets, TX Packets, RX Packets, or Error Packets activity, but in

this case, only for an individual port. The All Ports option is essentially a graphical display of the individual port

activity that can be viewed with the Console Monitor function discussed above. The All Ports option shows three

vertical bars for each port. The height of the bar represents Packets/s for the type of packet, at the instant the

bar is being viewed. That is, as time progresses, the height of the bar moves up or down so that the user can

view the change in the rate of packet transmission. The blue colored bar shows Uni-cast packets, the red

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colored bar shows Multi-cast packets, and the orange colored bar shows Broad-cast packets. The graph is

updated every few seconds, allowing the user to analyze data transmission activity in real-time.

Monitor by SFP

Optical fiber is commonly used for long distance data transmission. However, when link issues occur, it is very

costly to trouble shoot the fiber cable and fiber transceiver at remote sites. To solve this problem, Moxa

industrial Ethernet switches provide digital diagnostic and monitoring functions on Moxa SFP optical fiber links

and allow users to measure optical parameters and its performance from center site. This function can greatly

facilitate the trouble shooting process for optical fiber links and reduce costs for onsite debug.

Parameter Description

Port No. Switch port number with SFP plugged in

Model Name Moxa SFP model name

Temperature (°C)

SFP casing temperature

Voltage (V) Voltage supply to the SFP

Tx power (dBm) The amount of light being transmitted into the fiber optic cable

Rx power (dBm) The amount of light being received from the fiber optic cable

NOTE

Certain t

olerances exist between real data and measured data

Parameters Tolerance

Temperature (°C)

± 3°C

Voltage (V)

± 0.1V

Tx power (dBm)

3dB

Rx power (dBm)

± 3dB

DDM

Digital Diagnostic Monitoring (DDM) is a function to diagnose fiber status. By monitoring the temperature and

TX/RX power of all fiber ports, you can check if the fiber ports are working properly. Enabling the email warning

or relay warning functions, you can receive an alarm or relay if any fiber works over the threshold.

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The table below shows the threshold of the temperature and power by different fiber types.

Using the MAC Address Table

This section explains the information provided by the Moxa switch’s MAC address table.

The MAC Address table can be configured to display the following Moxa switch MAC address groups, which are

selected from the drop-down list:

ALL Select this item to show all of the Moxa switch’s MAC addresses.

ALL Learned Select this item to show all of the Moxa switch’s Learned MAC addresses.

ALL Static Lock Select this item to show all of the Moxa switch’s Static Lock MAC addresses.

ALL Static Select this item to show all of the Moxa switch’s Static, Static Lock, and Static

Multicast MAC addresses.

ALL Static Multicast Select this item to show all of the Moxa switch’s Static Multicast MAC addresses.

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

The table displays 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.

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Using Access Control List

NOTE

Access Control Lists are available in Moxa Layer 3 switches.

Access control lists (ACL) increase the flexibility and security of networking management.

ACL provides traffic filter capabilities for ingress or egress packets. Moxa access control list helps manage filter

criteria for diverse protocols and allows users to configure customized filter criteria. For example, users can

deny access to specific source or destination IP/MAC addresses.

The Moxa access control list configuration interface is easy-to-use. Users can quickly establish filtering rules,

manage rule priorities, and view overall settings in the display page.

The ACL Concept

What is ACL?

Access control list is a basic traffic filter for ingress and egress packets. It can examine each Ethernet packet’s

information and take necessary action. Moxa Layer 3 switches provide complete filtering capability. Access list

criteria could include the source or destination IP address of the packets, the source or destination MAC

address of the packets, IP protocols, or other information. The ACL can check these criteria to decide whether

to permit or deny access to a packet.

Benefits of ACL

ACL has per interface, per packet direction, and per protocol filtering capability. These features can provide

basic protection by filtering specific packets. The main benefits of ACL are as follows:

• Manage authority of hosts: ACL can restrict specific devices through MAC address filtering. The user can

deny all packets or only permit packets that come from specific devices.

• Subnet authority management: Configure filtering rules for specific subnet IP addresses. ACL can

restrict packets from or to specific subnets.

• Network security: The demand for networking security is growing. ACL can provide basic protection which

works similarly to an Ethernet firewall device.

• Control traffic flow by filtering specific protocols: ACL can filter specific IP protocols such as TCP or

UDP packets.

How ACL works

ACL working structure is based on access lists. Each access list is a filter. When a packet enters into or exits

from a switch, ACL will compare the packet to the rules in the access lists, starting from the first rule. If a packet

is rejected or accepted by the first rule, the switch will drop or pass this packet directly without checking the

rest of the lower-priority rules. In the other words, Access Control List has “Priority Index” as its attribute to

define the priority in the web configuration console.

There are two types of settings for an ACL: the list settings, and the rule settings. In order to be created, an

Access Control List needs the following list settings: Name, Priority Index, Filter Type, and Ports to Apply. Once

created, each Access Control List has its own set of rule settings. Priority Index represents the priority of the

names in the access list. Names at Priority Index 1 have first priority in packet filtering. The Priority Index is

adjustable whenever users need to change the priority. In this function, there are two types of packet filtering

available:

• IP based

• MAC Based

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Filter type defines whether the access list will examine packets based on IP or MAC address. This type affects

what detailed rules can be edited. Then, assign the ports you would like to apply the list to. You can also define

Ingress and Egress per port.

After adding a new access control list, you can also create new rules for the access control list. Each ACL group

accepts 10 rules. Rules can filter packets by source and destination IP/MAC address, IP protocol, TCP/UDP Port,

Ethernet Type, and VLAN ID.

After all rules are set, ACL starts to filter the packets by the rule with the highest Priority Index (smaller number,

higher priority). Once a rule denies or accepts its access, the packet will be dropped or passed.

Access Control List Configuration and Setup

Access Control List Settings

Creating an access control list starts at the Access Control List Setting page.

In this page, you can mainly configure two settings:

Add/Modify Access Control List

This function lets you Add a new access control list or Modify an existing access control list. The operation

depends on the Priority Index you select. If the selected priority index is still empty, you can start by creating

a new access control list. Parameters for editing are:

• Priority Index: ACL checking sequence is based on this index. Smaller index numbers have higher priority

for packet filtering. If a packet is filtered by an access list with higher priority, those access lists with lower

priority will not being executed.

Note that Priority Index is not a one-to-one index for each list name. It changes when swapping the priority

of different access control lists.

The maximum Priority Index number is 16

• Name: You can name the access control list in this field. This is the access list’s unique name.

• Filter: Select filtering by either IP or MAC address. Detailed settings can be configured in the Access

Control Rule Settings page.

• Ingress Port Map/Egress Port Map: You can choose which ports to apply the rules to. The Ingress and

Egress condition uses OR logic. This means a packet only needs to match one ingress or egress port rule to

be examined.

If a selected priority index is already in the access control list, then you can modify these parameters listed

above. After configuration, click Activate to confirm the settings. Then you will see a new list appear in the

Access Control List table.

Moxa Technologies PT-7528 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual