D-Link DGS-3000 series User manual

DGS-3000 Series Layer 2 Managed Gigabit Switch Web UI Reference Guide
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Information in this document is subject to change without notice.
© 2013 D-Link Corporation. All rights reserved.
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Trademarks used in this text: D-Link and the D-LINK logo are trademarks of D-Link Corporation; Microsoft and Windows are registered
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D-Link Corporation disclaims any proprietary interest in trademarks and trade names other than its own.
March, 2013 P/N 651GS3000015G

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Table of Contents
Intended Readers............................................................................................................................................................1
Typographical Conventions.............................................................................................................................................1
Notes, Notices and Cautions...........................................................................................................................................1
Chapter 1 Web-based Switch Configuration .......................................................................................................2
Introduction......................................................................................................................................................................2
Login to the Web Manager..............................................................................................................................................2
Web-based User Interface..............................................................................................................................................3
Areas of the User Interface..........................................................................................................................................3
Web Pages......................................................................................................................................................................4
Chapter 2 System Configuration...........................................................................................................................5
Device Information ..........................................................................................................................................................5
System Information Settings...........................................................................................................................................5
Port Configuration ...........................................................................................................................................................6
DDM.............................................................................................................................................................................6
Port Settings..............................................................................................................................................................13
Port Description Settings...........................................................................................................................................15
Port Error Disabled....................................................................................................................................................16
Jumbo Frame Settings ..............................................................................................................................................17
Port Media Type ........................................................................................................................................................17
EEE Settings .............................................................................................................................................................18
Serial Port Settings .......................................................................................................................................................18
Warning Temperature Settings.....................................................................................................................................19
System Log Configuration.............................................................................................................................................20
System Log Settings..................................................................................................................................................20
System Log Server Settings......................................................................................................................................20
System Log................................................................................................................................................................21
System Log & Trap Settings......................................................................................................................................22
System Severity Settings...........................................................................................................................................22
Time Range Settings.....................................................................................................................................................23
Time Settings ................................................................................................................................................................23
User Accounts Settings.................................................................................................................................................24
Command Logging Settings..........................................................................................................................................25
Chapter 3 Management........................................................................................................................................26
ARP...............................................................................................................................................................................26
Static ARP Settings ...................................................................................................................................................26
ARP Table .................................................................................................................................................................26
Gratuitous ARP .............................................................................................................................................................27
Gratuitous ARP Global Settings................................................................................................................................27
Gratuitous ARP Settings............................................................................................................................................28
IPv6 Neighbor Settings .................................................................................................................................................28
IP Interface....................................................................................................................................................................29
System IP Address Settings......................................................................................................................................29
Interface Settings.......................................................................................................................................................31
Management Settings ...................................................................................................................................................33
Session Table................................................................................................................................................................34
Single IP Management..................................................................................................................................................35
Single IP Settings ......................................................................................................................................................36
Topology....................................................................................................................................................................37

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Firmware Upgrade.....................................................................................................................................................43
Configuration File Backup/Restore............................................................................................................................43
Upload Log File .........................................................................................................................................................44
SNMP Settings..............................................................................................................................................................44
SNMP Global Settings...............................................................................................................................................45
SNMP Traps Settings................................................................................................................................................46
SNMP Linkchange Traps Settings ............................................................................................................................46
SNMP View Table Settings .......................................................................................................................................47
SNMP Community Table Settings.............................................................................................................................48
SNMP Group Table Settings.....................................................................................................................................49
SNMP Engine ID Settings .........................................................................................................................................49
SNMP User Table Settings........................................................................................................................................50
SNMP Host Table Settings........................................................................................................................................51
SNMP v6Host Table Settings....................................................................................................................................51
RMON Settings..........................................................................................................................................................52
Telnet Settings ..............................................................................................................................................................53
Web Settings.................................................................................................................................................................53
Power Saving................................................................................................................................................................53
LED State Settings ....................................................................................................................................................53
Power Saving Settings ..............................................................................................................................................54
Power Saving LED Settings ......................................................................................................................................55
Power Saving Port Settings.......................................................................................................................................55
Chapter 4 L2 Features..........................................................................................................................................56
VLAN.............................................................................................................................................................................56
802.1Q VLAN Settings ..............................................................................................................................................61
802.1v Protocol VLAN ...............................................................................................................................................64
GVRP.........................................................................................................................................................................66
MAC-based VLAN Settings.......................................................................................................................................67
Private VLAN Settings...............................................................................................................................................68
PVID Auto Assign Settings........................................................................................................................................70
Voice VLAN ...............................................................................................................................................................70
VLAN Trunk Settings.................................................................................................................................................73
Browse VLAN ............................................................................................................................................................73
Show VLAN Ports......................................................................................................................................................74
QinQ..............................................................................................................................................................................74
QinQ Settings ............................................................................................................................................................76
VLAN Translation Settings ........................................................................................................................................77
Layer 2 Protocol Tunneling Settings.............................................................................................................................77
Spanning Tree...............................................................................................................................................................78
STP Bridge Global Settings.......................................................................................................................................80
STP Port Settings......................................................................................................................................................81
MST Configuration Identification ...............................................................................................................................83
STP Instance Settings...............................................................................................................................................83
MSTP Port Information..............................................................................................................................................84
Link Aggregation ...........................................................................................................................................................85
Port Trunking Settings...............................................................................................................................................86
LACP Port Settings....................................................................................................................................................87
FDB...............................................................................................................................................................................88
Static FDB Settings ...................................................................................................................................................88
MAC Notification Settings..........................................................................................................................................89

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MAC Address Aging Time Settings...........................................................................................................................90
MAC Address Table ..................................................................................................................................................91
ARP & FDB Table......................................................................................................................................................91
L2 Multicast Control ......................................................................................................................................................92
IGMP Snooping .........................................................................................................................................................92
MLD Snooping.........................................................................................................................................................101
Multicast VLAN........................................................................................................................................................109
Multicast Filtering ........................................................................................................................................................112
IPv4 Multicast Filtering ............................................................................................................................................112
IPv6 Multicast Filtering ............................................................................................................................................114
Multicast Filtering Mode...........................................................................................................................................117
ERPS Settings.............................................................................................................................................................117
LLDP ...........................................................................................................................................................................120
LLDP........................................................................................................................................................................120
LLDP-MED...............................................................................................................................................................128
NLB FDB Settings.......................................................................................................................................................131
Chapter 5 L3 Features........................................................................................................................................132
IPv4 Static/Default Route Settings..............................................................................................................................132
IPv4 Route Table ........................................................................................................................................................132
IPv6 Static/Default Route Settings..............................................................................................................................133
Chapter 6 QoS.....................................................................................................................................................134
802.1p Settings ...........................................................................................................................................................135
802.1p Default Priority Settings...............................................................................................................................135
802.1p User Priority Settings...................................................................................................................................136
802.1p Map Settings................................................................................................................................................137
Bandwidth Control.......................................................................................................................................................137
Bandwidth Control Settings.....................................................................................................................................137
Queue Bandwidth Control Settings .........................................................................................................................139
Traffic Control Settings................................................................................................................................................139
DSCP ..........................................................................................................................................................................142
DSCP Trust Settings ...............................................................................................................................................142
DSCP Map Settings.................................................................................................................................................142
Scheduling Settings ....................................................................................................................................................144
QoS Scheduling.......................................................................................................................................................144
QoS Scheduling Mechanism...................................................................................................................................145
Chapter 7 ACL.....................................................................................................................................................147
ACL Configuration Wizard...........................................................................................................................................147
Access Profile List.......................................................................................................................................................148
Add an Ethernet ACL Profile ...................................................................................................................................149
Adding an IPv4 ACL Profile.....................................................................................................................................152
Adding an IPv6 ACL Profile.....................................................................................................................................157
Adding a Packet Content ACL Profile .....................................................................................................................162
CPU Access Profile List..............................................................................................................................................165
Adding a CPU Ethernet ACL Profile........................................................................................................................166
Adding a CPU IPv4 ACL Profile ..............................................................................................................................169
Adding a CPU IPv6 ACL Profile ..............................................................................................................................174
Adding a CPU Packet Content ACL Profile.............................................................................................................177
ACL Finder..................................................................................................................................................................180
ACL Flow Meter...........................................................................................................................................................180
Chapter 8 Security..............................................................................................................................................184

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802.1X.........................................................................................................................................................................184
802.1X Global Settings............................................................................................................................................187
802.1X Port Settings................................................................................................................................................188
802.1X User Settings...............................................................................................................................................189
Guest VLAN Settings...............................................................................................................................................190
Authenticator State..................................................................................................................................................191
Authenticator Statistics............................................................................................................................................191
Authenticator Session Statistics..............................................................................................................................193
Authenticator Diagnostics........................................................................................................................................194
Initialize Port(s)........................................................................................................................................................196
Reauthenticate Port(s).............................................................................................................................................196
RADIUS.......................................................................................................................................................................197
Authentication RADIUS Server Settings .................................................................................................................197
RADIUS Accounting Settings..................................................................................................................................198
RADIUS Authentication...........................................................................................................................................198
RADIUS Account Client...........................................................................................................................................200
IP-MAC-Port Binding (IMPB).......................................................................................................................................202
IMPB Global Settings ..............................................................................................................................................202
IMPB Port Settings ..................................................................................................................................................203
IMPB Entry Settings ................................................................................................................................................204
MAC Block List ........................................................................................................................................................205
DHCP Snooping ......................................................................................................................................................205
ND Snooping...........................................................................................................................................................207
MAC-based Access Control (MAC).............................................................................................................................208
MAC-based Access Control Settings ......................................................................................................................208
MAC-based Access Control Local Settings.............................................................................................................210
MAC-based Access Control Authentication State...................................................................................................211
Japanese Web-based Access Control (JWAC)..........................................................................................................212
JWAC Global Settings.............................................................................................................................................212
JWAC Port Settings.................................................................................................................................................213
JWAC User Settings................................................................................................................................................214
JWAC Authentication State.....................................................................................................................................215
JWAC Customize Page Language..........................................................................................................................216
JWAC Customize Page...........................................................................................................................................216
Compound Authentication...........................................................................................................................................218
Compound Authentication Settings.........................................................................................................................218
Port Security................................................................................................................................................................218
Port Security Settings..............................................................................................................................................218
Port Security VLAN Settings ...................................................................................................................................220
Port Security Entries................................................................................................................................................221
ARP Spoofing Prevention Settings .............................................................................................................................221
BPDU Attack Protection..............................................................................................................................................222
Loopback Detection Settings ......................................................................................................................................223
Traffic Segmentation Settings.....................................................................................................................................225
NetBIOS Filtering Settings..........................................................................................................................................225
DHCP Server Screening .............................................................................................................................................226
DHCP Server Screening Port Settings....................................................................................................................226
DHCP Offer Permit Entry Settings ..........................................................................................................................227
Access Authentication Control....................................................................................................................................228
Enable Admin ..........................................................................................................................................................229

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Authentication Policy Settings.................................................................................................................................230
Application Authentication Settings.........................................................................................................................231
Authentication Server Group Settings.....................................................................................................................231
Authentication Server Settings................................................................................................................................233
Login Method Lists Settings ....................................................................................................................................234
Enable Method Lists Settings..................................................................................................................................235
Local Enable Password Settings.............................................................................................................................236
SSL Settings................................................................................................................................................................236
SSH.............................................................................................................................................................................238
SSH Settings ...........................................................................................................................................................239
SSH Authentication Method and Algorithm Settings...............................................................................................240
SSH User Authentication List..................................................................................................................................241
Trusted Host Settings..................................................................................................................................................242
Safeguard Engine Settings .........................................................................................................................................243
DoS Attack Prevention Settings..................................................................................................................................245
IGMP Access Control Settings....................................................................................................................................246
Chapter 9 Network Application.........................................................................................................................248
DHCP..........................................................................................................................................................................248
DHCP Relay ............................................................................................................................................................248
DHCP Local Relay Settings.....................................................................................................................................254
DHCP Local Relay Option 82 Settings....................................................................................................................254
DNS Resolver..............................................................................................................................................................255
DNS Resolver Global Settings ................................................................................................................................255
DNS Resolver Static Name Server Settings ...........................................................................................................256
DNS Resolver Dynamic Name Server Table ..........................................................................................................256
DNS Resolver Static Host Name Settings...............................................................................................................256
DNS Resolver Dynamic Host Name Table..............................................................................................................257
PPPoE Circuit ID Insertion Settings............................................................................................................................257
SMTP Settings ............................................................................................................................................................258
SNTP...........................................................................................................................................................................259
SNTP Settings.........................................................................................................................................................259
Time Zone Settings .................................................................................................................................................260
Flash File System Settings..........................................................................................................................................262
Chapter 10 OAM....................................................................................................................................................264
CFM.............................................................................................................................................................................264
CFM Settings...........................................................................................................................................................264
CFM Port Settings ...................................................................................................................................................268
CFM MIPCCM Table...............................................................................................................................................269
CFM Loopback Settings..........................................................................................................................................269
CFM Linktrace Settings...........................................................................................................................................270
CFM Packet Counter...............................................................................................................................................271
CFM Fault Table......................................................................................................................................................273
CFM MP Table ........................................................................................................................................................273
Ethernet OAM..............................................................................................................................................................274
Ethernet OAM Settings............................................................................................................................................274
Ethernet OAM Configuration Settings .....................................................................................................................275
Ethernet OAM Event Log.........................................................................................................................................276
Ethernet OAM Statistics ..........................................................................................................................................277
DULD Settings.............................................................................................................................................................278
Cable Diagnostics .......................................................................................................................................................279

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Chapter 11 Monitoring .........................................................................................................................................281
Utilization.....................................................................................................................................................................281
CPU Utilization ........................................................................................................................................................281
DRAM & Flash Utilization........................................................................................................................................281
Port Utilization .........................................................................................................................................................282
Statistics......................................................................................................................................................................282
Port Statistics...........................................................................................................................................................283
Packet Size..............................................................................................................................................................290
Mirror...........................................................................................................................................................................292
Port Mirror Settings..................................................................................................................................................292
Ping Test.....................................................................................................................................................................293
Trace Route.................................................................................................................................................................294
Peripheral....................................................................................................................................................................295
Device Environment ................................................................................................................................................295
External Alarm Settings...........................................................................................................................................295
Chapter 12 Save and Tools..................................................................................................................................297
Save Configuration / Log.............................................................................................................................................297
Download firmware .....................................................................................................................................................297
Download Firmware From TFTP.............................................................................................................................297
Download Firmware From FTP...............................................................................................................................298
Download Firmware From HTTP.............................................................................................................................299
Upload Firmware.........................................................................................................................................................299
Upload Firmware To TFTP......................................................................................................................................299
Upload Firmware To FTP........................................................................................................................................300
Upload Firmware To HTTP......................................................................................................................................300
Download Configuration..............................................................................................................................................301
Download Configuration From TFTP.......................................................................................................................301
Download Configuration From FTP.........................................................................................................................301
Download Configuration From HTTP ......................................................................................................................302
Upload Configuration ..................................................................................................................................................302
Upload Configuration To TFTP................................................................................................................................303
Upload Configuration To FTP..................................................................................................................................303
Upload Configuration To HTTP...............................................................................................................................304
Upload Log File...........................................................................................................................................................305
Upload Log To TFTP...............................................................................................................................................305
Upload Log To FTP.................................................................................................................................................305
Upload Log To HTTP...............................................................................................................................................306
Reset...........................................................................................................................................................................306
Reboot System............................................................................................................................................................307
Appendix A Password Recovery Procedure.......................................................................................................309
Appendix B System Log Entries ..........................................................................................................................310
Appendix C Trap Log Entries ...............................................................................................................................319
Appendix D RADIUS Attributes Assignment ......................................................................................................325

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Intended Readers
Typographical Conventions
Notes, Notices and Cautions
Safety Instructions
General Precautions for Rack-Mountable Products
Protecting Against Electrostatic Discharge
The DGS-3000 Series Web UI Reference Guide contains information for setup and management of the Switch.
This manual is intended for network managers familiar with network management concepts and terminology.
Typographical Conventions
Convention Description
[ ] In a command line, square brackets indicate an optional entry. For example: [copy
filename] means that optionally you can type copy followed by the name of the file.
Do not type the brackets.
Bold font Indicates a button, a toolbar icon, menu, or menu item. For example: Open the File
menu and choose Cancel. Used for emphasis. May also indicate system messages
or prompts appearing on screen. For example: You have mail. Bold font is also
used to represent filenames, program names and commands. For example: use the
copy command.
Boldface Typewriter
Font
Indicates commands and responses to prompts that must be typed exactly as
printed in the manual.
Initial capital letter Indicates a window name. Names of keys on the keyboard have initial capitals. For
example: Click Enter.
Menu Name > Menu
Option Menu Name > Menu Option Indicates the menu structure. Device > Port > Port Properties means the Port Properties menu option under the Port menu option that
is located under the Device menu.
Notes, Notices and Cautions
A NOTE indicates important information that helps make better use of the device.
A NOTICE indicates either potential damage to hardware or loss of data and tells how to avoid the
problem.
A CAUTION indicates a potential for property damage, personal injury, or death.

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Chapter 1 Web-based Switch Configuration
Introduction
Login to the Web Manager
Web-based User Interface
Web Pages
Introduction
Most software functions of the DGS-3000 Series switches can be managed, configured and monitored via the
embedded web-based (HTML) interface. Manage the Switch from remote stations anywhere on the network
through a standard browser. The browser acts as a universal access tool and can communicate directly with the
Switch using the HTTP protocol.
Login to the Web Manager
To begin managing the Switch, simply run the browser installed on your computer and point it to the IP address you
have defined for the device. The URL in the address bar should read something like: http://123.123.123.123, where
the numbers 123 represent the IP address of the Switch.
NOTE: The factory default IP address is 10.90.90.90.
This opens the management module's user authentication window, as seen below.
Figure 1-1 Enter Network Password window
Leave both the User Name field and the Password field blank and click OK. This will open the Web-based user
interface. The Switch management features available in the web-based manager are explained below.

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Web-based User Interface
The user interface provides access to various Switch configuration and management windows, allows you to view
performance statistics, and permits you to graphically monitor the system status.
Areas of the User Interface
The figure below shows the user interface. Three distinct areas divide the user interface, as described in the table.
Figure 1-2 Main Web-Manager page
Area
Number Function
Area 1 Select the menu or window to display. Open folders and click the hyperlinked menu buttons
and subfolders contained within them to display menus. Click the D-Link logo to go to the D-
Link website.
Area 2
Presents a graphical near real-time image of the front panel of the Switch. This area displays
the Switch's ports, console and management port, showing port activity.
Some management functions, including save, reboot, download and upload are accessible
here.
Area 3 Presents switch information based on user selection and the entry of configuration data.
AREA 2
AREA 1
AREA 3

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Web Pages
When connecting to the management mode of the Switch with a web browser, a login screen is displayed. Enter a
user name and password to access the Switch's management mode.
Below is a list of the main folders available in the Web interface:
System Configuration - In this section the user will be able to configure features regarding the Switch’s
configuration.
Management - In this section the user will be able to configure features regarding the Switch’s management.
L2 Features - In this section the user will be able to configure features regarding the Layer 2 functionality of the
Switch.
L3 Features - In this section the user will be able to configure features regarding the Layer 3 functionality of the
Switch.
QoS - In this section the user will be able to configure features regarding the Quality of Service functionality of the
Switch.
ACL - In this section the user will be able to configure features regarding the Access Control List functionality of the
Switch.
Security - In this section the user will be able to configure features regarding the Switch’s security.
Network Application - In this section the user will be able to configure features regarding network applications
handled by the Switch.
OAM - In this section the user will be able to configure features regarding the Switch’s operations, administration
and maintenance (OAM).
Monitoring - In this section the user will be able to monitor the Switch’s configuration and statistics.
NOTE: Be sure to configure the user name and password in the User Accounts menu before
connecting the Switch to the greater network.

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Chapter 2 System Configuration
Device Information
System Information Settings
Port Configuration
Serial Port Settings
Warning Temperature Settings
System Log configuration
Time Range Settings
Time Settings
User Accounts Settings
Command Logging Settings
Device Information
This window contains the main settings for all the major functions for the Switch. It appears automatically when you
log on to the Switch. To return to the Device Information window after viewing other windows, click the DGS-3000
Series link.
The Device Information window shows the Switch’s MAC Address (assigned by the factory and unchangeable), the
Boot PROM Version, Firmware Version, Hardware Version, and many other important types of information. This is
helpful to keep track of PROM and firmware updates and to obtain the Switch’s MAC address for entry into another
network device’s address table, if necessary. In addition, this window displays the status of functions on the Switch
to quickly assess their current global status.
Many functions are hyper-linked for easy access to enable quick configuration from this window.
Figure 2-1 Device Information window
Click the Settings link to navigate to the appropriate feature page for configuration.
System Information Settings
The user can enter a System Name, System Location, and System Contact to aid in defining the Switch.
To view the following window, click System Configuration > System Information Settings, as show below:

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Figure 2-2 System Information Settings window
The fields that can be configured are described below:
Parameter Description
System Name Enter a system name for the Switch, if so desired. This name will identify it in the
Switch network.
System Location
Enter the location of the Switch, if so desired.
System Contact
Enter a contact name for the Switch, if so desired.
Click the Apply button to implement changes made.
Port Configuration
DDM
This folder contains windows that perform Digital Diagnostic Monitoring (DDM) functions on the Switch. There are
windows that allow the user to view the digital diagnostic monitoring status of SFP modules inserting to the Switch
and to configure alarm settings, warning settings, temperature threshold settings, voltage threshold settings, bias
current threshold settings, Tx power threshold settings, and Rx power threshold settings.
DDM Settings
The window is used to configure the action that will occur for specific ports when an exceeding alarm threshold or
warning threshold event is encountered.
To view the following window, click System Configuration > Port Configuration > DDM > DDM Settings, as
show below:

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Figure 2-3 DDM Settings window
The fields that can be configured are described below:
Parameter Description
Trap State Specify whether to send the trap, when the operating parameter exceeds the alarm or
warning threshold.
Log State Specify whether to send the log, when the operating parameter exceeds the alarm or
warning threshold.
From Port / To Port
Select a range of ports to be configured.
State
Use the drop-down menu to enable or disable the DDM state.
Shutdown Specify whether to shutdown the port, when the operating parameter exceeds the Alarm
or Warning threshold.
Alarm - Shutdown the port when the configured alarm threshold range is exceeded.
Warning - Shutdown the port when the configured warning threshold range is exceeded.
None - The port will never shutdown regardless if the threshold ranges are exceeded or
not. This is the default.
Click the Apply button to accept the changes made for each individual section.
DDM Temperature Threshold Settings
This window is used to configure the DDM Temperature Threshold Settings for specific ports on the Switch.
To view the following window, click System Configuration > Port Configuration > DDM > DDM Temperature
Threshold Settings, as show below:

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Figure 2-4 DDM Temperature Threshold Settings window
The fields that can be configured are described below:
Parameter Description
From Port / To Port
Select a range of ports to be configured.
High Alarm (-128-
127.996)
This is the highest threshold for the alarm. When the operating parameter rises above
this value, action associated with the alarm will be taken.
Low Alarm (-128-
127.996)
This is the lowest threshold for the alarm. When the operating parameter falls below this
value, action associated with the alarm will be taken.
High Warning (-128-
127.996)
This is the highest threshold for the warning. When the operating parameter rises above
this value, action associated with the warning will be taken.
Low Warning (-128-
127.996)
This is the lowest threshold for the warning. When the operating parameter falls below
this value, action associated with the warning will be taken.
Click the Apply button to accept the changes made.
DDM Voltage Threshold Settings
This window is used to configure the DDM Voltage Threshold Settings for specific ports on the Switch.
To view the following window, click System Configuration > Port Configuration > DDM > DDM Voltage
Threshold Settings, as show below:

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Figure 2-5 DDM Voltage Threshold Settings window
The fields that can be configured are described below:
Parameter Description
From Port / To Port
Select a range of ports to be configured.
High Alarm (0-6.55) This is the highest threshold for the alarm. When the operating parameter rises above
this value, action associated with the alarm will be taken.
Low Alarm (0-6.55) This is the lowest threshold for the alarm. When the operating parameter falls below this
value, action associated with the alarm will be taken.
High Warning (0-
6.55)
This is the highest threshold for the warning. When the operating parameter rises above
this value, action associated with the warning will be taken.
Low Warning (0-
6.55)
This is the lowest threshold for the warning. When the operating parameter falls below
this value, action associated with the warning will be taken.
Click the Apply button to accept the changes made.
DDM Bias Current Threshold Settings
This window is used to configure the threshold of the bias current for specific ports on the Switch.
To view the following window, click System Configuration > Port Configuration > DDM > DDM Bias Current
Threshold Settings, as show below:

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Figure 2-6 DDM Bias Current Threshold Settings window
The fields that can be configured are described below:
Parameter Description
From Port / To Port
Select a range of ports to be configured.
High Alarm (0-131) This is the highest threshold for the alarm. When the operating parameter rises above
this value, action associated with the alarm will be taken.
Low Alarm (0-131) This is the lowest threshold for the alarm. When the operating parameter falls below
this value, action associated with the alarm will be taken.
High Warning (0-131) This is the highest threshold for the warning. When the operating parameter rises
above this value, action associated with the warning will be taken.
Low Warning (0-131) This is the lowest threshold for the warning. When the operating parameter falls below
this value, action associated with the warning will be taken.
Click the Apply button to accept the changes made.
DDM TX Power Threshold Settings
This window is used to configure the threshold of Tx power for specific ports on the Switch.
To view the following window, click System Configuration > Port Configuration > DDM > DDM TX Power
Threshold Settings, as show below:

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Figure 2-7 DDM TX Power Threshold Settings window
The fields that can be configured are described below:
Parameter Description
From Port / To Port
Select a range of ports to be configured.
High Alarm (0-
6.5535)
This is the highest threshold for the alarm. When the operating parameter rises above
this value, action associated with the alarm will be taken.
Low Alarm (0-
6.5535)
This is the lowest threshold for the alarm. When the operating parameter falls below this
value, action associated with the alarm will be taken.
High Warning (0-
6.5535)
This is the highest threshold for the warning. When the operating parameter rises above
this value, action associated with the warning will be taken.
Low Warning (0-
6.5535)
This is the lowest threshold for the warning. When the operating parameter falls below
this value, action associated with the warning will be taken.
Click the Apply button to accept the changes made.
DDM RX Power Threshold Settings
This window is used to configure the threshold of RX power for specific ports on the Switch.
To view the following window, click System Configuration > Port Configuration > DDM > DDM RX Power
Threshold Settings, as show below:

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Figure 2-8 DDM RX Power Threshold Settings window
The fields that can be configured are described below:
Parameter Description
From Port / To Port
Select a range of ports to be configured.
High Alarm (0-
6.5535)
This is the highest threshold for the alarm. When the operating parameter rises above
this value, action associated with the alarm will be taken.
Low Alarm (0-
6.5535)
This is the lowest threshold for the alarm. When the operating parameter falls below this
value, action associated with the alarm will be taken.
High Warning (0-
6.5535)
This is the highest threshold for the warning. When the operating parameter rises above
this value, action associated with the warning will be taken.
Low Warning (0-
6.5535)
This is the lowest threshold for the warning. When the operating parameter falls below
this value, action associated with the warning will be taken.
Click the Apply button to accept the changes made.
DDM Status Table
This window is used to display the current operating digital diagnostic monitoring parameters and their values on
the SFP module for specified ports.
To view the following window, click System Configuration > Port Configuration > DDM > DDM Status Table, as
show below: