D-Link | DES-1100-26 | User manual | D-Link DES-1100-26 User manual

Ver. 1.10
D-Link Web Smart Switch User Manual
Table of Contents
Table of Contents ............................................................................................................................................. i
About This Guide............................................................................................................................................. 1
Terms/Usage.................................................................................................................................................. 1
Copyright and Trademarks ............................................................................................................................ 1
1 Product Introduction ................................................................................................................................... 2
DES-1100-16 ................................................................................................................................................. 2
Front Panel ................................................................................................................................................. 2
Rear Panel.................................................................................................................................................. 2
DES-1100-24 ................................................................................................................................................. 2
Front Panel ................................................................................................................................................. 2
Rear Panel.................................................................................................................................................. 3
DES-1100-26 ................................................................................................................................................. 3
Front Panel ................................................................................................................................................. 3
Rear Panel.................................................................................................................................................. 4
2 Hardware Installation .................................................................................................................................. 5
Step 1: Unpacking.......................................................................................................................................... 5
Step 2: Switch Installation.............................................................................................................................. 5
Desktop or Shelf Installation....................................................................................................................... 5
Rack Installation ......................................................................................................................................... 5
Step 3 – Plugging in the AC Power Cord....................................................................................................... 7
Power Failure ............................................................................................................................................. 7
Grounding the Switch ................................................................................................................................. 7
3 Getting Started............................................................................................................................................. 8
Management Options..................................................................................................................................... 8
Using Web-based Management .................................................................................................................... 8
Supported Web Browsers .......................................................................................................................... 8
Connecting to the Switch............................................................................................................................ 8
Login Web-based Management ................................................................................................................. 9
SmartConsole Utility....................................................................................................................................... 9
4 SmartConsole Utility ................................................................................................................................. 11
SmartConsole Settings ................................................................................................................................ 11
Utility Settings........................................................................................................................................... 11
Log............................................................................................................................................................ 12
Trap .......................................................................................................................................................... 12
File ............................................................................................................................................................ 13
Help .......................................................................................................................................................... 13
Device Configuration.................................................................................................................................... 14
Add(+), Delete(-) and Discover the device ............................................................................................... 15
Device List.................................................................................................................................................... 16
5 Configuration ............................................................................................................................................. 18
Web-based Management............................................................................................................................. 18
Tool Bar > Save Menu ................................................................................................................................. 19
Save Configuration ................................................................................................................................... 19
Tool Bar > Tool Menu .................................................................................................................................. 19
Reset System ........................................................................................................................................... 19
Reboot Device .......................................................................................................................................... 19
Firmware Upgrade.................................................................................................................................... 19
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Configuration Backup & Restore .............................................................................................................. 20
Function Tree ............................................................................................................................................... 21
Device Information.................................................................................................................................... 22
System > System Settings ....................................................................................................................... 22
System > Port Settings............................................................................................................................. 23
System > Trap Settings For SmartConsole.............................................................................................. 24
System > Password Access Control ........................................................................................................ 25
L2 Features > Port Trunking..................................................................................................................... 25
L2 Features > IGMP Snooping................................................................................................................. 26
L2 Features > Port Mirroring .................................................................................................................... 27
L2 Features > Loopback Detection .......................................................................................................... 28
L2 Features > Statistics............................................................................................................................ 28
VLAN > 802.1Q VLAN.............................................................................................................................. 31
VLAN > 802.1Q Management VLAN........................................................................................................ 33
VLAN > Port-Base VLAN.......................................................................................................................... 34
VLAN > Traffic Segmentation................................................................................................................... 34
QoS > 802.1p Default Priority (QoS Setting)............................................................................................ 35
QoS > Storm Control ................................................................................................................................ 36
QoS > Bandwidth Control......................................................................................................................... 37
Security > MAC Address Table > Static MAC.......................................................................................... 38
Security > MAC Address Table > Dynamic Forwarding Table................................................................. 39
Appendix A - Ethernet Technology.............................................................................................................. 41
Gigabit Ethernet Technology ....................................................................................................................... 41
Fast Ethernet Technology............................................................................................................................ 41
Switching Technology .................................................................................................................................. 41
Appendix B - Technical Specifications ....................................................................................................... 62
Hardware Specifications .............................................................................................................................. 62
Key Components / Performance .............................................................................................................. 62
Port Functions .......................................................................................................................................... 62
Physical & Environment ........................................................................................................................... 62
Emission (EMI) Certifications ................................................................................................................... 62
Safety Certifications.................................................................................................................................. 62
Features ....................................................................................................................................................... 62
L2 Features .............................................................................................................................................. 62
VLAN ........................................................................................................................................................ 62
QoS (Quality of Service)........................................................................................................................... 62
Management............................................................................................................................................. 62
Appendix C – Rack mount Instructions ...................................................................................................... 63
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D-Link Web Smart Switch User Manual
About This Guide
This guide provides instructions to install the D-Link Fast Ethernet EasySmart Switch DES-1100-16/24/26,
how to use the Web Utility, and to configure Web-based Management step-by-step.
Note: The model you have purchased may
appear slightly different from the illustrations
shown in the document. Refer to the Product
Instruction and Technical Specification sections
for detailed information about your switch, its
components, network connections, and technical
specifications.
This guide is mainly divided into four parts:
1.
Hardware Installation: Step-by-step hardware installation procedures.
2.
Getting Started: A startup guide for basic switch installation and settings.
3.
Smart Console Utility: An introduction to the central management system.
4.
Configuration: Information about the function descriptions and configuration settings.
Terms/Usage
In this guide, the term “Switch” (first letter capitalized) refers to the EasySmart Switch, and “switch” (first
letter lower case) refers to other Ethernet switches. Some technologies refer to terms “switch”, “bridge” and
“switching hubs” interchangeably, and both are commonly accepted for Ethernet switches.
A NOTE indicates important information that
helps a better use of the device.
A CAUTION indicates potential property damage
or personal injury.
Copyright and Trademarks
Information in this document is subjected to change without notice.
© 2010 D-Link Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of D-Link Corporation is strictly
forbidden.
Trademarks used in this text: D-Link and the D-LINK logo are trademarks of D-Link Corporation; Microsoft
and Windows are registered trademarks of Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the
marks and names or their products. D-Link Corporation disclaims any proprietary interest in trademarks and
trade names other than its own.
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1
Product Introduction
Thank you and congratulations on your purchase of D-Link EasySmart Switch Products.
D-Link's next generation EasySmart Ethernet switch series blends plug-and-play simplicity with exceptional
value and reliability for small and medium-sized business (SMB) networking. All models are housed in a new
style rack-mount metal case with easy-to-view front panel diagnostic LEDs.
DES-1100-16
16-Port 10/100Mpbs EasySmart Switch
Front Panel
Figure 1 – DES-1100-16 Front Panel
Power LED: The Power LED lights up when the Switch is connected to a power source.
Link/Act/Speed LED (Ports 1-16):
Flashing: Indicates a network link through the corresponding port.
Blinking: Indicates that the Switch is either sending or receiving data to the port.
Green: Indicates that the port is running at 100M.
Light off: Indicates that the port is running at 10M.
Reset: By pressing the Reset button for 5 seconds the Switch will change back to the default configuration
and all changes will be lost.
Rear Panel
Figure 2 – DES-1100-16 Rear Panel
Power: The power port is where to connect the AC power cord.
DES-1100-24
24-Port 10/100Mpbs EasySmart Switch
Front Panel
Figure 3 – DES-1100-24 Front Panel
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Power LED: The Power LED lights up when the Switch is connected to a power source.
Link/Act/Speed LED (Ports 1-24):
Flashing: Indicates a network link through the corresponding port.
Blinking: Indicates that the Switch is either sending or receiving data to the port.
Green: Indicates that the port is running at 100M.
Light off: Indicates that the port is running at 10M.
Reset: Press the reset button to reset the Switch back to the default settings. All previous changes will be
lost.
Rear Panel
Figure 3 – DES-1100-24 Rear Panel
Power: Connect the supplied AC power cable to this port.
DES-1100-26
24-Port 10/100Mpbs with 2-Port 10/100/1000Mbps Combo SFP Web Smart Switch
Front Panel
Figure 5 – DES-1100-26 Front Panel
Power LED: The Power LED lights up when the Switch is connected to a power source.
Link/Act/Speed LED (Ports 1-26):
Flashing: Indicates a network link through the corresponding port.
Blinking: Indicates that the Switch is either sending or receiving data to the port.
Speed LED Per 10/100 Mbps Port(Port1-Port24)
Green: Indicates that the port is running at 100M.
Light off: Indicates that the port is running at 10M.
Speed LED Per 10/100/1000 Mbps Port(Port25-Port26)
Green: Indicates that the port is running at 1000M
Amber: Indicates that the port is running at 10M/100M
CAUTION: The MiniGBIC ports should use UL
listed Optical Transceiver product, Rated
Laser Class I. 3.3Vdc.
Reset: By pressing the Reset button for 5 seconds the Switch will change back to the default configuration
and all changes will be lost.
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Rear Panel
Figure 6 – DES-1100-26 Rear Panel
Power: Connect the supplied AC power cable to this port.
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2
Hardware Installation
This chapter provides unpacking and installation information for the D-Link EasySmart Switch.
Step 1: Unpacking
Open the shipping carton and carefully unpack its contents. Please consult the packing list located in the
User Manual to make sure all items are present and undamaged. If any item is missing or damaged, please
contact your local D-Link reseller for replacement.
One D-Link EasySmart Switch
One AC power cord
Four rubber feet
Screws and two mounting brackets
One accessory kit for a ground screw
One Multi-lingual Getting Started Guide
One CD with User Manual and SmartConsole Utility program
If any item is found missing or damaged, please contact the local reseller for replacement.
Step 2: Switch Installation
For safe switch installation and operation, it is recommended that you:
Visually inspect the power cord to see that it is secured fully to the AC power connector.
Make sure that there is proper heat dissipation and adequate ventilation around the switch.
Do not place heavy objects on the switch.
Desktop or Shelf Installation
When installing the switch on a desktop or shelf, the rubber feet included with the device must be attached
on the bottom at each corner of the device’s base. Allow enough ventilation space between the device and
the objects around it.
Figure 7 – Attach the adhesive rubber pads to the bottom
Rack Installation
The switch can be mounted in an EIA standard size 11-inch rack, which can be placed in a wiring closet with
other equipment. To install, attach the mounting brackets to the switch’s side panels (one on each side) and
secure them with the screws provided (please note that these brackets are not designed for palm size
switches).
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D-Link Web Smart Switch User Manual
Figure 8 – Attach the mounting brackets to the Switch
Then, use the screws provided with the equipment rack to mount the switch in the rack.
Figure 9 – Mount the Switch in the rack or chassis
Please be aware of following safety Instructions when installing:
A) Elevated Operating Ambient - If installed in a closed or multi-unit rack assembly, the operating ambient
temperature of the rack environment may be greater than room ambient. Therefore, consideration should be
given to installing the equipment in an environment compatible with the maximum ambient temperature (Tma)
specified by the manufacturer.
B) Reduced Air Flow - Installation of the equipment in a rack should be such that the amount of air flow
required for safe operation of the equipment is not compromised.
C) Mechanical Loading - Mounting of the equipment in the rack should be such that a hazardous condition is
not achieved due to uneven mechanical loading.
D) Circuit Overloading - Consideration should be given to the connection of the equipment to the supply
circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring.
Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.
E) Reliable Earthling - Reliable earthling of rack-mounted equipment should be maintained. Particular
attention should be given to supply connections other than direct connections to the branch circuit (e.g. use
of power strips)."
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Step 3 – Plugging in the AC Power Cord
Users may now connect the AC power cord into the rear of the switch and to an electrical outlet (preferably
one that is grounded and surge protected).
Figure 10 –Plugging the switch into an outlet
Power Failure
As a precaution, the switch should be unplugged in case of power failure. When power is resumed, plug the
switch back in.
Grounding the Switch
This section describes how to connect the EasySmart Switch to ground. You must complete this procedure
before powering your switch.
Required Tools and Equipment

Ground screws (included in the accessory kit): One M4 x 6 mm (metric) pan-head screw

Ground cable (not included in the accessory kit): The grounding cable should be sized according to
local and national installation requirements. Depending on the power supply and system, a 12 to 6
AWG copper conductor is required for U.S installation. Commercially available 6 AWG wire is
recommended. The length of the cable depends on the proximity of the switch to proper grounding
facilities.

A screwdriver (not included in the accessory kit)
The following steps let you connect the switch to a protective ground:
Step 1: Verify if the system power is off.
Step 2: Use the ground cable to place the #8 terminal lug ring on top of the ground-screw opening, as seen
in the figure below.
Step 3: Insert the ground screw into the ground-screw opening.
Step 4: Using a screwdriver, tighten the ground screw to secure the ground cable to the switch.
Step 5: Attach the terminal lug ring at the other end of the grounding cable to an appropriate grounding stud
or bolt on rack where the switch is installed.
Step 6: Verify if the connections at the ground connector on the switch and the rack are securely attached.
Figure 11 –Ground cable, screw and #8 terminal lug ring
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3
Getting Started
This chapter introduces the management interface of D-Link EasySmart Switch.
Management Options
The D-Link EasySmart Switch can be managed through any port on the device by using the Web-based
Management or through any PC using the SmartConsole Utility.
Each switch must be assigned its own IP Address, which is used for communication with Web-Based
Management. The PC’s IP address should be in the same range as the switch. Each switch can allow only
one user to access the Web-Based Management at a time.
The PC should have an IP address in the same range as the switch. Each switch can allow one user to
access to the Web-Based Management at a time.
However, if you want to manage multiple D-Link EasySmart Switches, the SmartConsole Utility is a more
convenient choice. By using the SmartConsole Utility, you do not need to change the IP address of your PC
and it is easier to initialize multiple EasySmart Switches.
Please refer to the following installation instructions for the Web-based Management and the SmartConsole
Utility.
Using Web-based Management
After a successful physical installation, you can configure the Switch, monitor the network status, and display
statistics using a web browser.
Supported Web Browsers
The embedded Web-based Management currently supports the following web browsers:
Internet Explorer 6 or higher
Netscape 8 or higher
Mozilla
Firefox 1.5/2.0 or higher
Connecting to the Switch
You will need the following equipment to begin the web configuration of your device:
1.
A PC with a RJ-45 Ethernet connection
2.
A standard Ethernet cable
Connect the Ethernet cable to any of the ports on the front panel of the switch and to the Ethernet port on the
PC.
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Figure 12 –Connected Ethernet cable
Login Web-based Management
In order to login and configure the switch via an Ethernet connection, the PC must have an IP address in the
same subnet as the switch. For example, if the switch has an IP address of 10.90.90.90, the PC should have
an IP address of 10.x.y.z (where x/y is a number between 0 ~ 254 and z is a number between 1 ~ 254), and
a subnet mask of 255.0.0.0. There are two ways to launch the Web-based Management, you may either click
the Web Access button at the top of the SmartConsole Utility or open the web browser and enter 10.90.90.90
(the factory-default IP address) in the address bar. Then press <Enter>.
Figure 13 –Enter the IP address 10.90.90.90 in the web browser
NOTE: The switch's factory default IP address is
10.90.90.90 with a subnet mask of 255.0.0.0 and
a default gateway of 0.0.0.0.
The web configuration can also be accessed through the SmartConsole Utility. Open the SmartConsole
Utility and double-click the switch as it appears in the Monitor List. This will automatically load the web
configuration in your web browser.
When the following logon dialog box appears, enter the password then click OK. The default password is
admin.
Figure 14 – Logon Dialog Box
SmartConsole Utility
The SmartConsole Utility included in the installation CD is a program for discovering D-Link Smart Switches
and EasySmart Switches within the same L2 network segment connected to your PC. This tool is only for
computers running Windows 7, Vista, XP, and 2000 in both 32 and 64-bit operating systems. There are two
options for the installation of the SmartConsole Utility; one is through the autorun program on the installation
CD and the other is manual installation.
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NOTE: Please be sure to uninstall any existing
SmartConsole Utility from your PC before
installing the latest SmartConsole Utility.
Option 1: Follow these steps to install the SmartConsole Utility via the autorun program on the installation
CD.
Insert the Utility CD into your CD-Rom/DVD-Rom Drive.
1.
2.
The autorun program will appear automatically.
3.
Click on the ”Install SmartConsole Utility” button and an installation wizard will guide you through the
process.
4.
After successfully installing the SmartConsole Utility, you can open the utility by clicking Start >
Programs > D-Link SmartConsole Utility.
5.
Connect the Smart Switch to the same L2 network segment of your PC and use the SmartConsole
Utility to discover the Smart Switches.
Option 2: Follow these steps to install the SmartConsole Utility manually.
1.
Insert the Utility CD into your CD-Rom/DVD-Rom Drive.
2.
From the Start menu on the Windows desktop, click Computer.
3.
Double click on your CD-Rom/DVD-Rom Drive to start the autorun menu, or right click on the Drive to
open the folder. Select SmartConsole Utility and double click on the .exe file.
4.
Follow the on-screen instructions to install the utility.
5.
Upon completion, go to Start > Programs > D-Link SmartConsole Utility and open the SmartConsole
Utility.
6.
Connect the Smart Switch to the same L2 network segment of your PC and use the SmartConsole
Utility to discover the Smart Switches.
For detailed explanations of SmartConsole’s functions, please refer to Chapter 4 SmartConsole Utility
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4
SmartConsole Utility
The D-Link SmartConsole Utility allows the administrator to quickly discover all D-Link Smart Switches and
EasySmart Switches which are in the same domain of the PC, collect traps and log messages, and quick
access to basic configurations of the switch.
The SmartConsole Utility consists of three parts, Device Configurations at the top, Device List as the main
body, and SmartConsole Settings at the left.
Device Configuration
SmartConsole
Settings
Device List
Figure 15 – SmartConsole Utility
SmartConsole Settings
The SmartConsole Settings at the left has five icons, Utility Settings, Log, Trap, File, and Help.
Utility Settings
Click this icon to launch the Utility Settings window. Refresh time refreshes the devices which were selected
as monitored device in the Device List. Choices include 15 seconds, 30 seconds, 1minutes, 2minutes,
and 5 minutes for selecting the monitoring time intervals. Utility Group Interval establishes the intervals (in
seconds) that the Switch will be discovered in the SmartConsole Device List.
Figure 16– SmartConsole Utility Settings
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NOTE: If the Group Interval is set to 0, IGMP
Snooping must be disabled in the Switch or the
switches will not be discovered.
Log
Click this icon to launch the Log window. Click View Log to show the events of the SmartConsole Utility and
the device. Date/Time indicates when the message was received, IP denotes where it comes from and
Status shows the content of this log message. Click Clear Log to clear all log entries. Click OK to exit.
Figure 17 – SmartConsole Log
Trap
Click this icon to launch the Trap window. Click View Trap to show the events of the SmartConsole Utility
and the device. Date/Time indicates when the trap message was received, IP denotes where it comes from
and Status shows the content of this trap message. Click Clear Trap to clear all entries. Click OK to exit
Figure 18 – SmartConsole Trap
The trap icon in the SmartConsole Settings will change while receiving new trap messages. Please see
below for detailed description.
Icon
Description
No new traps
New traps was received
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File
By clicking on this icon you will see below options:
Figure 19 – SmartConsole File
Monitor Save: Records the setting of the Device List as default for the next time the SmartConsole Utility is
used.
Monitor Save As: Records the setting of the Device List in an appointed filename and file path.
Monitor Load: Manually load a Device List setting file.
Help
Click this icon to launch the SmartConsole Info window.
Figure 20 – SmartConsole Help
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Device Configuration
The Device Configuration in the SmartConsole Utility has five icons:
Device Settings
Device Password Manager
Multi Firmware Upgrade
DHCP Refresh
Web Access
and the
,
,
device buttons for the Device List.
Device Settings
Select a switch from the Device List. Click on this icon to launch the Device Settings window. Here you can
configure the Product Name, IP Address, Gateway, Subnet Mask, System Name, Location, Trap Host IP,
and DHCP Client Setting of the Switch.
To apply the configuration, insert the correct device password in the Confirm Password box and then click
OK
Figure 21 – SmartConsole Device Settings
NOTE: The EasySmart Switch automatically
sends out discovery packets to maintain the
connection
between
the
devices
and
SmartConsole Utility. Therefore, ensure to
configure the Group Interval setting.
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Device Password Manager
Select a switch from the Device List. Click on this icon to launch the Device Password Manager window.
Here you can enter a new password and confirm it.
Figure 22 – SmartConsole Device Password Manager
Multi Firmware Upgrade
The EasySmart switches’ firmware cannot be upgraded by clicking the Multi Firmware Upgrade button via
SmartConsle Utility.
Figure 23 – Firmware Upgrade error message
DHCP Refresh:
If a DHCP-client enabled switch in the Device List shows the default IP is still used, it means the device did
not receive an IP address from the DHCP server successfully. Select that switch and click the DHCP refresh
icon. Enter the correct Device Password and then click OK. The device will renew the IP address from the
DHCP server.
Figure 24 – DHCP Refresh
Web Access
Select a switch from the Device List. Click this icon to launch your internet browser (e.g. The Internet
Explorer). Here you can configure the Switch through the Web-based Management utility. You may also get
into the Web-based Management by double-clicking the device in the device list.
Add(+), Delete(-) and Discover the device
Click the Discovery button to display all the Web Smart and EasySmart switches located in the same
domain with the management PC.
Click the + and insert a device IP address to add a device into Discover List, or select a device and click
the – button to remove it.
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Figure 25 – SmartConsole Add device
Figure 26 – SmartConsole Delete device
Device List
This list displays all discovered Web Smart and EasySmart switches on the network.
Figure 27 – SmartConsole Device List
Definitions of the Device List features:
Monitor: Check the Monitor box and the SmartConsole will collect the trap and log data from the device. The
in the monitor means the device was discovered by SmartConsole. Click the icon to have the device keep
updating the information such as system log or trap to the SmartConsole Utility. The icon will become
.
When the device was detected as not reachable, the icon will change to
. Please check if the power or
the cable of this device is disconnected.
IP Address: Displays the current IP addresses of devices.
MAC Address: Displays the device MAC Addresses.
Protocol version: Displays the software version of the Utility.
Product Name: Displays the device product name.
System Name: Displays the appointed device system name.
DHCP: Specify if the device gets the IP address from a DHCP server.
Location: Displays where the appointed device location.
Trap IP: Displays the IP address of host where the Trap information will be sent to.
Subnet Mask: Displays the Subnet Mask setting of the device.
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Gateway: Displays the Gateway setting of the device.
Device Group Interval: Displays the intervals (in seconds). This feature is not available for EasySmart
switches.
Firmware version: Displays the current Firmware version of this device.
LLDP: Displays the LLDP (Link Layer Discovery Protocol) status of the device. This feature is available only
for PoE models of Web Smart switches.
SNMP: Displays the SNMP status of the device. This is not available for EasySmart switches.
NOTE: If the devices are marked red in the device
list, it means that the devices require upgrading
firmware again.
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5
Configuration
The features and functions of the D-Link EasySmart Switch can be configured for optimum use through the
Web-based Management Utility.
Web-based Management
After a successful login you will see the screen below:
Tool Bar
Function Tree
Main Configuration Screen
Figure 28 – Web-based Management
Above is the Web-based Management screen. The three main areas are the Tool Bar on top, the Function
Tree, and the Main Configuration Screen.
The Tool Bar provides a quick and convenient way for essential utility functions like firmware and
configuration management.
By choosing different functions in the Function Tree, you can change all the settings in the Main
Configuration Screen. The main configuration screen will show the current status of your Switch by clicking
the model name on top of the function tree.
At the upper right corner of the screen the username and current IP address will be displayed.
Under the username is the Logout button. Click this to end this session.
NOTE: If you close the web browser without
clicking the Logout button, it will be seen as an
abnormal exit and the login session will still be
occupied.
Finally, by clicking on the D-Link logo at the upper-left corner of the screen you will be redirected to the local
D-Link website.
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Tool Bar > Save Menu
The Save Menu provides Save Configuration.
Figure 29 – Save Menu
Save Configuration
Select to save the entire configuration changes you have made to the device to switch’s non-volatile RAM.
Figure 30– Save Configuration
Tool Bar > Tool Menu
The Tool Menu offers global function controls such as Reset System, Reboot Device, Firmware Upgrade and
Configuration Backup & Restore.
Figure 31 – Tool Menu
Reset System
Provide a safe reset option for the Switch. All configuration settings in non-volatile RAM will be reset to
factory default and then the Switch will reboot.
Figure 32 – Tool Menu > Reset System
Reboot Device
Provide a safe way to reboot the system. Click Reboot to restart the switch.
Figure 33 – Tool Menu > Reboot Device
Firmware Upgrade
Allows an existing firmware file to be uploaded to the Switch; upgrade the firmware from your local drive of
PC.
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Figure 34 – Tool Menu > Firmware upgrade
Click Browse to browse your inventories for a saved firmware file. And then click Upgrade to restore the
selected firmware file.
CAUTION: Do not disconnect the PC or remove
the power cord from device until upgrade is
complete. The Switch may crash if the Firmware
Upgrade is incomplete.
Configuration Backup & Restore
Allow the current configuration settings to be saved to a file (not including the password), and if necessary,
you can restore configuration settings from the file.
Figure 35 – Tool Menu > Configure Backup and Restore
Backup or restore the configuration file to or from your local drive.
Click Backup to save the current settings to your disk.
Click Browse to browse your inventories for a saved backup settings file.
Click Restore after selecting the backup settings file you want to restore.
Note: Switch will reboot after restore and
all current configurations will be lost
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Function Tree
All configuration options on the switch are accessed through the Setup menu on the left side of the screen.
Click on the setup item that you want to configure. The following sections provide more detailed description
of each feature and function.
DES-1100-24
Figure 36 – Function Tree
DES-1100-26
Figure 37 – Function Tree
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D-Link Web Smart Switch User Manual
NOTE: DES-1100-26 supports one more function:
VLAN-> Traffic Segmentation.
Device Information
The Device Information provides an overview of the switch which includes essential information such as
firmware, hardware and IP address.
It also offers an overall status of common software features:
Port Mirroring: Click Setting > L2 Features > Port Mirroring. By default this feature is disabled.
Storm Control: Click Setting > QoS > Storm Control. By default this feature is disabled.
IGMP Snooping: Click Setting > L2 Features > IGMP Snooping. By default this feature is disabled.
Port Trunking: Click Setting > L2 Features > Trunking Setting. By default this feature is disabled.
802.1Q VLAN: Click Setting > VLAN > 802.1Q VLAN. By default this feature is disabled.
Loopback Detection: Click Setting > L2 Features > Loopback Detection. By default this feature is
disabled.
Figure 38 – Device Information
System > System Settings
The System Setting allows the user to configure the IP address and the basic system information of the
Switch.
IP Information: There are two ways for the switch to obtain an IP address: Static and DHCP (Dynamic Host
Configuration Protocol).
When using static mode, the IP Address, Subnet Mask and Gateway can be manually configured. When
using DHCP mode, the Switch will first look for a DHCP server to provide it with an IP address (including
network mask and default gateway) before using the default or previously entered settings. By default the IP
setting is static mode with IP address is 10.90.90.90 and subnet mask is 255.0.0.0.
System Information: By entering a System Name and System Location, the device can more easily be
recognized through the SmartConsole Utility and from other EasySmart devices on the LAN.
Login Timeout: The Login Timeout controls the idle time-out period for security purposes, when there is no
action for a specific time span in the Web-based Management. If the current session times out (expires), the
user is required a re-login before using the Web-based Management again. Selective range is from 3 to 30
minutes, and the default setting is 5 minutes.
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Figure 39 – System > System Setting
System > Port Settings
In the Port Setting page, the status of all ports can be monitored and adjusted for optimum configuration. By
selecting a range of ports (From Port and To Port), the Speed can be set for all selected ports, effective by
clicking Apply. Press the Refresh button to view the latest information.
DES-1100-16/24
Figure 40 – System > Port Setting
Speed: Copper connections can operate in Forced Mode settings (100M Full, 100M Half, 10M Full, 10M
Half), Auto, or Disabled. The default setting for all ports is Auto.
NOTE: Be sure to adjust port speed settings
appropriately after changing connected cable
media types.
Link Status: Reporting Down indicates the port is disconnected.
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Flow Control: You can enable this function to mitigate the traffic congestion. Ports configured for full-duplex
use 802.3x flow control, half-duplex ports use backpressure flow control. The default setting is disabled.
DES-1100-26
Figure 41 – System > Port Setting
Speed: Copper connections of Port1, Port2, … , Port25, and Port26 can operate in Forced Mode settings
(100M Full, 100M Half, 10M Full, 10M Half), Auto, or Disabled. Fiber connection of Port25 and Port26 can
only operate in Forced Mode setting 1000M Full and Auto, but can not be disabled. The default setting for all
ports is Auto.
NOTE: Be sure to adjust port speed settings
appropriately after changing connected cable
media types.
Link Status: Reporting Down indicates the port is disconnected.
Flow Control: You can enable this function to mitigate the traffic congestion. Ports configured for full-duplex
use 802.3x flow control, half-duplex ports use backpressure flow control. The default setting is disabled.
System > Trap Settings For SmartConsole
By configuring the Trap Setting, it allows SmartConsole Utility to monitor specified events on this EasySmart
Switch. By default, Trap Setting is disabled. When the Trap Setting is enabled, enter the Destination IP
address of the managing station that will receive trap information.
DES-1100-16/24
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Figure 42 – System > Trap Setting
Select the event message(s) to be sent out to the managing station.
System Event: The system level messages contain:
Device Bootup - System boot-up information
Illegal Login - Events of incorrect password logins and records the IP of the source PC
Twisted pair Port Link Up/Link Down: Copper port connection information
Firmware Upgrade State: Information of firmware upgrade - success or failure
DES-1100-26
Figure 43 – System > Trap Setting
Select the event message(s) to be sent out to the managing station.
System Event: The system level messages contain:
Device Bootup - System boot-up information
Illegal Login - Events of incorrect password logins and records the IP of the source PC
Fiber Port Link Up or Link Down: Fiber port connection information
Twisted pair Port Link Up/Link Down: Copper port connection information
Firmware Upgrade State: Information of firmware upgrade - success or failure
NOTE: DES-1100-26 sends trap when Fiber Port
link state changes.
System > Password Access Control
Setting a password is a critical tool for managers to secure the EasySmart Switch. After entering the old
password and the new password two times, click Apply for the changes to take effect.
Figure 44 – System > Password Access Control
L2 Features > Port Trunking
The Trunking function allows the switch to combine two or more ports together to increase bandwidth.
Select the Trunking Groups, choose the Members to be grouped together, and then click Apply to
activate the selected Trunking Groups. Up to two Trunking Groups may be created for DES-110016/24, and up to three Trunking Groups for DES-1100-26, each supporting up to four ports.
Disable - Removes all the members in this trunk group.
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DES-1100-16/24
Figure 45- L2 Features > Port Trunking Settings
DES-1100-26
Figure 46- L2 Features > Port Trunking Settings
NOTE:
On DES-1100-26, Port 1-4 can be
aggregated for Trunk Group 1, Port 5-8 are for
Group 2, and the uplink port 25-26 are for Group
3. The rest ports do not support Trunking.
L2 Features > IGMP Snooping
With Internet Group Management Protocol (IGMP) snooping, the EasySmart Switch can make intelligent
multicast forwarding decisions by examining the contents of each frame’s Layer 2 MAC header.
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By default, IGMP is disabled. If enabled, the EasySmart switch can recognize IGMP queries and reports sent
between network stations or devices and an IGMP host. With IGMP snooping enabled, the EasySmart switch
will forward multicast traffic only to the connections that have members attached.
If the IGMP server is not able to send out query control message automatically, a static router port may be
required to be configured manually. Select the ports to be assigned as router ports for IGMP snooping in the
IGMP Static Router Port List, and click Apply for changes to take effect.
Figure 47– L2 Features > IGMP Snooping setting
L2 Features > Port Mirroring
Port Mirroring is a method of monitoring network traffic that forwards a copy of each incoming and/or
outgoing packet from one port of the Switch to another port where the packet can be studied. This enables
network managers to better monitor network performances.
Figure 48 –L2 Features > Port Mirroring
Selection Sniffer Mode for the Source Ports are as follows:
TX (transmit) mode: Duplicates the data transmitted from the source port and forwards it to the Target Port.
Click “all” to include all ports into port mirroring.
RX (receive) mode: Duplicates the data that received from the source port and forwards it to the Target Port.
Click “all” to include all ports into port mirroring.
Both (transmit and receive) mode: Duplicate both the data transmitted from and data sent to the source
port, and forwards all the data to the assigned Target Port. Click “all” to include all ports into port mirroring.
NOTE: The target ports will stop mirroring packets
if there are unknown tags or destination packets
sent out by source ports.
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L2 Features > Loopback Detection
The Loopback Detection function is used to detect the loop created by a specific port while Spanning Tree
Protocol (STP) is not enabled in the network, especially when the down links are hubs or unmanaged
switches. The Switch will automatically shutdown the port. The Loopback Detection port will be unlocked
when the Loopback Detection Recover Time times out. The Loopback Detection function can be
implemented on a range of ports at a time. You may enable or disable this function using the pull-down menu.
Figure 49 – L2 Features > Loopback Detection
Loopback Detection State: Use the drop-down menu to enable or disable loopback detection. The default
is Disabled.
Interval (1-32767): Set a Loop detection Interval between 1 and 32767 seconds. The default is 10 seconds.
Recover Time (0 or 60-1000000): Time allowed (in seconds) for recovery when a Loopback is detected.
The Loop Detection Recover Time can be set at 0 seconds, or 60 to 1000000 seconds. Entering 0 will
disable the Loop Detection Recover Time. The default is 60 seconds.
From Port: The beginning of a consecutive group of ports may be configured starting with the selected port.
To Port: The ending of a consecutive group of ports may be configured starting with the selected port.
State: Use the drop-down menu to toggle between Enabled and Disabled. Default is Disabled.
Click Apply to implement changes made.
NOTE: Member ports of link aggregation
groups cannot support Loopback Detection.
L2 Features > Statistics
The Statistics screen displays the status of each port packet count. It offers several options such as Receive
Packet & Transmit Packet, Transmit Packet & Collision, Receive Packet & Drop Packet and Receive
Packet & CRC Packet.
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Figure 50 – L2 Features > Statistics menu
Receive Packet & Transmit Packet: Number of packets received and transmitted successfully.
Figure 51 – L2 Features > Statistics menu
Transmit Packet & Collision: Number of transmit packets resulting in collision.
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Figure 52 – L2 Features > Statistics menu
Receive Packet & Drop Packet: Number of receive packets resulting in drop packets.
Figure 53 – L2 Features > Statistics menu
Receive Packet & CRC Packet: Number of receive packets resulting in CRC error.
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Figure 54 – L2 Features > Statistics menu
Refresh All: Refreshes the details collected and displayed.
Clear All Counters: Resets the details displayed.
VLAN > 802.1Q VLAN
A VLAN is a group of ports that can be anywhere in the network, but communicate as though they were in
the same area.
VLANs can be easily organized to reflect department groups (such as R&D, Marketing), usage groups (such
as e-mail), or multicast groups (multimedia applications such as video conferencing), and therefore help to
simplify network management by allowing users to move devices to a new VLAN without having to change
any physical connections.
By default, 802.1Q VLAN is disabled. With 802.1Q VLAN enabled, the VLAN VID 1 is created by default with
an empty VLAN name field and all ports are configured as “Untagged” members.
The 802.1Q VLAN configuration is accomplished in three steps:
Enabling 802.1Q VLAN function
Creating a new VID group and assigning ports as Untagged, Tagged or Not Member.
Configuring the PVID of access VLAN
Add VID: Click to create a new VID group, assigning ports from 1 to 24 as Untagged, Tagged, or Not
Member. VLAN VID is a unique number (between 1 and 4094) that identifies a particular VLAN. A port can
be untagged in only one VID. To save the VID group, click Apply. You can also change the name according
to the desired groups.
PVID settings: Port VLAN ID (PVID) is an identification that encompasses a particular switch port’s
identification and VLAN membership. This identification is used to classify the incoming untagged frames.
Click to configure the PVID of a port.
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Figure 55 – VLAN > 802.1Q VLAN > Default Setting
Figure 56 – VLAN > 802.1Q VLAN > Add VID
Figure 57 – VLAN > 802.1Q VLAN > Assign PVID
Rename: Click to rename the VLAN group.
Delete VID: Click to delete the VLAN group.
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Figure 58 – VLAN > 802.1Q VLAN > VLAN Table
NOTE: When 802.1Q VLAN is enabled, the PortBased VLAN settings will be reset to default.
NOTE: When 802.1Q VLAN is disabled, its
settings will be cleaned, and Management VLAN
will be disabled simultaneously.
VLAN > 802.1Q Management VLAN
802.1Q Management VLAN setting allows you to transfer the authority of the switch from the default VLAN to
others created by users. Doing so makes managing the whole network more flexible.
By default, the Management VLAN is disabled. You can select any existing VLAN as the management VLAN
when this function is enabled.
Figure 59 – VLAN > 802.1Q Management VLAN
NOTE: The Management VLAN can only work
when 802.1Q VLAN is enabled. Please check out
the 802.1Q VLAN state before enabling
Management VLAN.
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VLAN > Port-Base VLAN
Port-Based VLANs are the simplest and most common form of VLAN. It assigns the appliance LAN ports to
VLANs, effectively transforming the appliances. You can assign multiple ports to the same VLAN, or each
port to a separate VLAN.
Figure 60 – VLAN >Port-Based VLAN Settings
Add VLAN: Click to create a new VLAN name and to select VLAN ports. The VLAN name should be less
than 10 characters. To save the members in a group, click Apply.
Rename: Click to rename the VLAN group.
Delete VID: Click to delete the VLAN group.
NOTE: When Port-Based VLAN is enabled, the
802.1Q VLAN and the Management VLAN will
become disabled simultaneously, and settings are
cleaned as default.
VLAN > Traffic Segmentation
DES-1100-26
Traffic segmentation is used to limit traffic flow for a group of ports on a single Switch. This method of
segmenting the flow of traffic is similar to using VLANs to limit traffic, but is more restrictive. To configure
traffic segmentation, specify several ports as protected ports, the rest as unprotected ports. Protected ports
or unprotected ports will be allowed to forward packets to other unprotected ports, however, protected ports
will be forbidden to forward packets to other protected ports.
By default, the Traffic Segmentation is disabled.
Figure 61 – VLAN >Traffic Segmentation
NOTE: DES-1100-26 Supports Traffic Segmentation
function.
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QoS > 802.1p Default Priority (QoS Setting)
QoS is an implementation of the IEEE 802.1p standard that allows network administrators to reserve
bandwidth for important functions that require a larger bandwidth or that might have a higher priority, such as
VoIP (voice-over Internet Protocol), web browsing applications, file server applications or video conferencing.
Thus with larger bandwidth, less critical traffic is limited, and therefore excessive bandwidth can be saved.
The following figure displays the status of Quality of Service priority levels of each port, higher priority means
the traffic from this port will be first handled by the switch.
DES-1100-16/24
Figure 62 – QoS > 802.1p Default Priority
DES-1100-26
Figure 63 – QoS > QoS Setting 802.1p-Based
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Figure 64 – QoS > QoS Setting Port-Based
NOTE: Packet prioritization can be configured as either PortBased or 802.1p-Based. If port-based mode is selected, the
packets will be prioritized as High or Low based on port
settings.
If 802.1p-Based is selected, D-Link Easy Smart Switches will
refer to their 802.1p information for prioritization.
QoS > Storm Control
The Storm Control feature provides the ability to control the receive rate of broadcast, multicast, and
unknown unicast packets. Once a packet storm has been detected, the Switch will drop packets coming into
the Switch until the storm has subsided.
DES-1100-16/24
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Figure 65 – QoS > Storm Control
Storm Control Type: User can select the different Storm type from Broadcast Only, Multicast & Broadcast,
and Multicast & Broadcast & Unknown Unicast.
Threshold (pps): If storm control is enabled (by default it is disabled), the threshold can be set from 0.8 to
12.6Kbits per second at 10Mbps speed, and 8 ~ 126Kbits per second at 100Mbps speed.
Click Apply for the settings to take effect.
DES-1100-26
Figure 66 – QoS > Storm Control
Storm Control Type: Storm type supports Broadcast Only as default.
Threshold (pps): If storm control is enabled (by default it is disabled), the threshold can be set from 0.8 to
12.6Kbits per second at 10Mbps speed, and 8 ~ 126Kbits per second at 100Mbps speed, and 80 ~
1260Kbits per second at 1000Mbps speed.
Click Apply for the settings to take effect.
NOTE: DES-1100-16/24 support 3 packet types
of Storm Control, and DES-1100-26 supports
Broadcast Storm Control.
QoS > Bandwidth Control
The Bandwidth Control page allows network managers to define the bandwidth settings for a specified port’s
transmitting and receiving data rates.
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Figure 67 – QoS > Bandwidth Control
From Port / To Port: A consecutive group of ports may be configured starting with the selected port.
Type: This drop-down menu allows you to select between RX (receive), TX (transmit), and Both. This
setting will determine whether the bandwidth ceiling is applied to receiving, transmitting, or both
receiving and transmitting packets.
No Limit: This drop-down menu allows you to specify that the selected port will have no bandwidth limit.
Enabled disables the limit.
Rate: This drop-down menu allows you to select data rate.
Click Apply to set the bandwidth control for the selected ports.
NOTE: DES-1100-16/24 allows you to select rate
from 512Kbps to 65536Kbps, but DES-1100-26
allows you to select rate from 2048Kbps
to32768Kbps.
Security > MAC Address Table > Static MAC
This feature provides two distinct functions. The Disable Auto Learning Excluding Uplink Port table allows
turning off the function of learning MAC address automatically, if a port isn't specified as an uplink port (for
example, connects to a DHCP Server or Gateway). By default, this feature is Off (disabled).
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Figure 68 – Security > Static Mac Address
To initiate the removal of auto-learning for any of the uplink ports, click On to enable this feature, and then
select the port(s) for auto learning to be disabled.
The Static MAC Address Setting table displays the static MAC addresses connected, as well as the VID.
Click Add Mac to add a new MAC address, you also need to select the assigned Port number, enter both the
Mac Address and VID and Click Apply. Click Delete to remove one entry or click Delete all to clear the list.
You can also copy a learned MAC address from Dynamic Forwarding Table (please refer to Security >
MAC Address Table > Dynamic Forwarding Table for details).
By disabling Auto Learning capability and specify the static MAC addresses, the network is protected from
potential threats like hackers because traffic from illegal MAC addresses will not be forwarded by the Switch.
Security > MAC Address Table > Dynamic Forwarding Table
For each port, this table displays the MAC address learned by the Switch. To add a MAC address to the
Static Mac Address List, click the Add checkbox, and then click Apply associated with the identified address.
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Figure 69 – Security > Dynamic Forwarding Table
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Appendix A - Ethernet Technology
This chapter will describe the features of the D-Link EasySmart Switch and provide some background
information about Ethernet/Fast Ethernet/Gigabit Ethernet switching technology.
Gigabit Ethernet Technology
Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the same packet structure, format, and
support for CSMA/CD protocol, full duplex, and management objects, but with a tenfold increase in
theoretical throughput of over 100-Mbps Fast Ethernet and a hundredfold increase over 10-Mbps Ethernet.
Since it is compatible with all 10-Mbps and 100-Mbps Ethernet environments, Gigabit Ethernet provides a
straightforward upgrade without wasting existing investments in hardware, software, or trained personnel.
The increased speed and extra bandwidth offered by Gigabit Ethernet is essential to help solving network
bottlenecks that frequently develop as more advanced computer users and newer applications continue to
demand greater network resources. Upgrading key components, such as backbone connections and servers
to Gigabit Ethernet technology can greatly improve network response times as well as significantly speed up
the traffic between subnets.
Gigabit Ethernet enables fast optical fiber connections to support video conferencing, complex imaging, and
similar data-intensive applications. Likewise, since data transfers occur 10 times faster than Fast Ethernet,
servers outfitted with Gigabit Ethernet NIC’s are able to perform 10 times the number of operations in the
same amount of time.
In addition, the phenomenal bandwidth delivered by Gigabit Ethernet is the most cost-effective method to
take advantage of today and tomorrow’s rapidly improving switching and routing internetworking
technologies. And with expected advances in the coming years in silicon technology and digital signal
processing that will enable Gigabit Ethernet to eventually operate over unshielded twisted-pair (UTP) cabling,
outfitting your network with a powerful 1000-Mbps-capable backbone/server connection which will create a
flexible foundation for the next generation of network technology products.
Fast Ethernet Technology
The growing importance of LANs and the increasing complexity of desktop computing applications are
fueling the need for high performance networks. A number of high-speed LAN technologies have been
proposed to provide greater bandwidth and improve client/server response times. Among them, 100BASE-T
(Fast Ethernet) provides a non-disruptive, smooth evolution from the current 10BASE-T technology. The
non-disruptive and smooth evolution nature, and the dominating potential market base, virtually guarantees
cost-effective and high performance Fast Ethernet solutions.
100Mbps Fast Ethernet is a standard specified by the IEEE 802.3 LAN committee. It is an extension of the
10Mbps Ethernet standard with the ability to transmit and receive data at 100Mbps, while maintaining the
CSMA/CD Ethernet protocol. Since the 100Mbps Fast Ethernet is compatible with all other 10Mbps Ethernet
environments, it provides a straightforward upgrade and utilizes existing investments in hardware, software,
and personnel training.
Switching Technology
Another approach to push beyond the limits of Ethernet technology is the development of switching
technology. A switch bridges Ethernet packets at the MAC address level of the Ethernet protocol transmitting
among connected Ethernet or Fast Ethernet LAN segments.
Switching is a cost-effective way of increasing the total network capacity available to users on a local area
network. A switch increases capacity and decreases network loading by dividing a local area network into
different segments which won’t compete with each other for network transmission capacity.
The switch acts as a high-speed selective bridge between the individual segments. The switch, without
interfering with any other segments, automatically forwards traffic that needs to go from one segment to
another. By doing this the total network capacity is multiplied, while still maintaining the same network
cabling and adapter cards.
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Appendix B - Technical Specifications
Physical & Environment
AC input, 100~240 VAC, 50/60Hz,
internal universal power supply
Acoustic Value:
- DES-1100-16/24/26: 0dB (Fan-less)
Operation Temperature 0~40°C
Storage Temperature -10~70°C
Operation Humidity: 10%~95% RH
Storage Humidity: 5%~95% RH
Hardware Specifications
Key Components / Performance
Switching Capacity:
- DES-1100-16: 3.2Gbps
- DES-1100-24: 4.8Gbps
- DES-1100-26: 8.8Gbps
Max. Forwarding Rate
- DES-1100-16: 2.38Mpps
- DES-1100-24: 3.57Mpps
- DES-1100-26: 6.54Mpps
Forwarding Mode: Store and Forward
Packet Buffer memory:
- DES-1100-16/24: 1.75 Mbits
- DES-1100-26: 2.75Mbits
Flash Memory: 2M Bytes
Emission (EMI) Certifications
FCC class A
CE Class A
VCCI Class A
Safety Certifications
cUL, LVD
Port Functions
DES-1100-16/24/26 10/100BaseTX ports
compliant with the following standards:
- IEEE 802.3
- IEEE 802.3u
- Supports Full/half-Duplex operations
2 1000Base-T ports on DES-1100-26
comply with the following standards:
- IEEE 802.3
- IEEE 802.3u
- IEEE 802.3ab
- Supports Full-Duplex operations
2 combo SFP ports on DES-1100-26
comply with the following standards:
- IEEE 802.3z
- Supports Full-Duplex operations
SFP transceivers supported
- DEM-310GT (1000BASE-LX, 10km)
- DEM-311GT (1000BASE-SX, 550m)
- DEM-314GT (1000BASE-LH, 50km)
- DEM-315GT (1000BASE-ZX, 80km)
- DEM-312GT2 (1000BASE-SX, 2km)WDM
Transceivers Supported:
- DEM-330T (1000Base-BX,TX-1550/RX1310nm, 10km)
- DEM-330R (1000Base-BX,TX-1310/RX1550nm, 10km)
- DEM-331T (1000Base-BX,TX-1550/RX1310nm, 40km)
- DEM-331R (1000Base-BX,TX-1310/RX1550nm, 40km)
Features
L2 Features
MAC address table
- DES-1100-16/24: up to 8K
- DES-1100-26: up to 4K
IGMP snooping
Loopback Detection
Port Mirroring
Port Trunking
VLAN
802.1Q VLAN standard (VLAN Tagging)
802.1Q Management VLAN
Port-Based VLAN
QoS (Quality of Service)
802.1p priority,
Up to 2 queues per port
Bandwidth Control
Storm Control
Management
Web-based GUI or SmartConsole Utility
Configuration backup / restoration via
Web-based management
Firmware upgrade via Web-based
management
Reset, Reboot system
Factory reset by clicking reset button
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Appendix C – Rack mount Instructions
Safety Instructions - Rack Mount Instructions - The following or similar rack-mount instructions are included
with the installation instructions:
A) Elevated Operating Ambient - If installed in a closed or multi-unit rack assembly, the operating ambient
temperature of the rack environment may be greater than room ambient. Therefore, consideration should be
given to installing the equipment in an environment compatible with the maximum ambient temperature (Tma)
specified by the manufacturer.
B) Reduced Air Flow - Installation of the equipment in a rack should be such that the amount of air flow
required for safe operation of the equipment is not compromised.
C) Mechanical Loading - Mounting of the equipment in the rack should be such that a hazardous condition is
not achieved due to uneven mechanical loading.
D) Circuit Overloading - Consideration should be given to the connection of the equipment to the supply
circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring.
Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.
E) Reliable Earthing - Reliable earthing of rack-mounted equipment should be maintained. Particular
attention should be given to supply connections other than direct connections to the branch circuit (e.g. use
of power strips).
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