D-Link DGS-1224T - Web Smart Switch User manual

D-Link DGS-1224T
24-Port 10/100/1000Mbps
Gigabit Ethernet Switch + 2-Port mini GBIC
Web-Smart Switch
User’s Guide
First Edition
Building Networks for People

i
TABLE OF CONTENTS
About This Guide.................................................................................1
Purpose ............................................................................................1
Terms/Usage....................................................................................1
Introduction..........................................................................................2
Gigabit Ethernet Technology...........................................................2
Fast Ethernet Technology................................................................3
Switching Technology.....................................................................4
IEEE 802.1Q VLAN........................................................................4
Features............................................................................................5
Technical Specifications..................................................................6
Unpacking and Installation ..................................................................9
Unpacking........................................................................................9
Installation .......................................................................................9
Rack Mounting...........................................................................10
Connecting Network Cable........................................................11
AC Power...................................................................................12
Identifying External Components......................................................13
Front Panel.....................................................................................13
Rear Panel......................................................................................14
Understanding LED Indicators ..........................................................15
Power and System LEDs ...............................................................15
Configuration.....................................................................................17
Supported web browsers................................................................17

ii
Installing the SmartConsole Utility................................................17
SmartConsole Utility Features.......................................................18
Menu Toolbar.............................................................................18
Discovery List............................................................................20
Monitor List...............................................................................21
Device Setting............................................................................23
Web-based Utility..........................................................................25
Login..........................................................................................25
Tool Menu..................................................................................27
Setup Menu....................................................................................30
System > System Setting ...........................................................31
System > Trap Setting................................................................32
System > Port Setting.................................................................33
System > SNMP Setting ............................................................34
System > Password Access Control...........................................36
Configuration > Jumbo Frame...................................................37
Configuration > 802.1Q VLAN.................................................38
Configuration > Trunking..........................................................41
Configuration > IGMP Snooping...............................................41
Configuration > 802.1D Spanning Tree.....................................45
Configuration > Port Mirroring..................................................48
QoS > 802.1p Default Priority...................................................49
Security > Safeguard Engine......................................................49
Security > Broadcast Storm Control..........................................50
Security > 802.1X > 802.1X Setting..........................................51

iii
Security > Mac Address Table > Static MAC............................54
Security > Mac Address Table > Dynamic Forwarding Table ..55
Monitoring > Statistics...............................................................56

1
ABOUT THIS GUIDE
Congratulations on your purchase of the DGS-1224T 24-Port
10/100/1000Mbps Gigabit Ethernet + 2-Port Mini GBIC Web-Smart
Switch. This device integrates 1000Mbps Gigabit Ethernet, 100Mbps
Fast Ethernet and 10Mbps Ethernet network capabilities in a highly
flexible package.
Purpose
This guide discusses how to install and use the configuration functions
of the DGS-1224T Web-Smart Switch.
Terms/Usage
In this guide, the term “Switch” (first letter capitalized) refers to the
DGS-1224T Web-Smart 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.

2
INTRODUCTION
This chapter describes the features of the DGS-1224T and provides
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, flow control, and management objects, but with a tenfold
increase in theoretical throughput 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, and trained personnel.
The increased speed and extra bandwidth offered by Gigabit Ethernet
is essential to helping solve 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.

3
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 creates 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.

4
Switching Technology
Another approach to pushing 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 don’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.
IEEE 802.1Q VLAN
A Virtual Local Area Network (VLAN) is a group of end-stations that
are not constrained by their physical location and can communicate as
if located on a common broadcast domain, or a LAN. The primary
utility of using VLAN is to reduce latency and need for routers, in
favor of using faster switching technologies instead. The IEEE 802.1Q
specification provides a standard for tagging Ethernet frames with
VLAN membership information. The 802.1Q standard is intended to
address the problem of how to break large networks into smaller parts

5
so broadcast and multicast traffic use valuable network bandwidth
more efficiently. Additional VLAN benefits include:
Security: Security is increased with the reduction of opportunity in
eavesdropping on a broadcast network because data will be switched
to only those confidential users within the VLAN.
Cost Reduction: VLANs can be used to create multiple broadcast
domains, thus eliminating the need of expensive routers.
VID: VLAN ID is an identification of up to 4094 possible VLANs. A
VID of 0 is used to identify priority frames. The value 4095 (FFF) is
reserved, so the maximum possible VLAN configurations are 4,094.
Features
♦Address Table: Supports up to 8K MAC address per device
♦Supports a packet buffer of up to 512K Bytes
♦Supports Jumbo frame setting
♦IGMP Snooping support
♦IEEE802.1D Spanning Tree
♦Support static Port Trunk
♦IEEE802.3x flow control in full duplex mode
♦Port Mirroring support
♦IEEE802.1Q VLAN
♦IEEE802.1p Priority Queues
♦IEEE802.1X Port-based Access Control
♦Supports Broadcast Storm Control

6
♦Supports Static MAC setting
♦D-Link Safeguard Engine support
♦Supports Simple Network Management Protocol(SNMP)
♦MIB support for: RFC1213 MIB II, Private MIB
♦Supports DHCP client
♦Supports Port -setting for Speed and Flow control
♦Easy configuration via Web Browser
♦Easy setting via Web Management Utility
♦Firmware backup and upload via Web GUI
♦System reboot via Web GUI
♦Provides parallel LED display for port status such as
link/act, speed, etc.
Technical Specifications
Key Components / Performance
Switching Capacity 48Gbps
Max. Forwarding Rate 10M: 14,880 pps
100M: 148,809 pps
1G: 1,488,095 pps
Forwarding Mode Store and Forward
Packet Buffer memory 512K Bytes
SDRAM for CPU 8M Bytes

7
Flash Memory Prom 2M Bytes
Port Functions
LAN
- 24 x 10/100/1000BaseT ports
- Compliant with the following standards:
IEEE 802.3 compliance
1. IEEE 802.3u compliance
2. IEEE 802.3ab compliance
3. Supports Full-Duplex operations at
10/100Mbps, and 1000Mbps only on
SFP ports
4. IEEE 802.3x Flow Control support for
Full-Duplex mode
Combo ports in the
front panel
- 2 x SFP ports combined with Port 23 and
Port24
- SFP Transceivers Supported:
1. DEM-310GT (1000BASE-LX), up to
10km
2. DEM-311GT (1000BASE-SX), up to
550m
3. DEM-314GT (1000BASE-LH), up to
50km
4. DEM-315GT (1000BASE-ZX), up to
80km
- Compliant to following standards:
IEEE 802.3z compliance
Chassis
Dimensions 19-inch, 1U Rack-mount size
440mm x 210mm x 44mm

8
Reset button on the
back panel A factory reset button x 1
Physical & Environment
AC input
100-240 VAC, 50/60Hz
Internal universal power supply
Operation
Temperature 0-40°C
Storage Temperature -10-70°C
Humidity Operation: 10%-90% RH
Storage: 5% ~ 90% RH
Power consumption 35.1(watts)
Heat Dissipation 119.69 (btu/hr)
MTBF 155456 (hours)
Emission (EMI) and Safety Certifications
EMI-EMC Compliance: FCC class A, CE Class A, VCCI Class A
Safety Compliance: cUL, UL

9
UNPACKING AND INSTALLATION
This chapter provides unpacking and installation information for the
Web-Smart Switch.
Unpacking
Carefully unpack the contents of the Web-Smart Switch packaging
and locate the following items:
One DGS-1224T Web-Smart Switch
One AC power cord, suitable for the local electrical power voltage
requirements
Four rubber feet to be used for shock cushioning
Screws and two mounting brackets
CD-Rom with the SmartConsole Utility application , User’s Guide
And Quick Installation Guide
If any item is found missing or damaged, please contact the reseller
for replacement.
Installation
The site chosen for installation greatly affects the Web-Smart
Switch’s performance. When installing, consider the following points:
•Install the Switch in a fairly cool and dry place. See
Technical Specifications for the acceptable temperature and
humidity operating ranges.

10
•Install the Switch in a site free from strong electromagnetic
field generators (such as motors), vibration, dust, and direct
exposure to sunlight.
•Leave at least 10cm of space to the front and rear of the
Switch for ventilation.
•Install the Switch on a sturdy, level surface that can support
its weight, or in an EIA standard-size equipment rack. For
information on rack installation, see the next section, Rack
Mounting.
•When installing the Switch on a level surface, attach the
rubber pads (feet) to the bottom. The rubber feet cushion the
switch and helps protect the case from scratches.
Figure 1 – Attach the adhesive rubber pads to the bottom
Rack Mounting
The Switch can be mounted in an EIA standard-size, 19-inch rack or
chassis, which can be located in a wiring closet with other equipment.
Attach the mounting brackets to the Switch’s side panels (one on each
side), and secure them with the provided screws.

11
Figure 2 – Attach the mounting brackets to the Switch
Use the screws provided with the equipment rack or chassis to mount
the Switch in the rack.
Figure 3 – Mount the Switch in the rack or chassis
Connecting Network Cable
The Switch supports 1000Mbps Gigabit Ethernet that can operate in
Auto-negotiate mode, and 10Mbps Ethernet or 100Mbps Fast Ethernet
modes that run both in half and full duplex modes, as well as
1000Mbps Gigabit Ethernet that runs in full duplex mode, all while
connected to four-pair Category 5 Cables.
The twenty four RJ-45 ports are all Auto-MDI type ports. The Switch
can auto transform to MDI-II or MDI-X type, therefore connections
with standard or crossover RJ45 cables are both supported.

12
AC Power
The Switch utilizes an AC power supply of 100-240V AC, 50-60 Hz.
The power switch is located at the rear of the Switch adjacent to the
AC power connector and the system fan. The switch’s power supply
will adjust to the local power source automatically and may be turned
on without having any or all LAN segment cables connected.

13
IDENTIFYING EXTERNAL COMPONENTS
This chapter describes the front panel, rear panel, and LED indicators
of the Switch.
Front Panel
The figure below shows the front panel of the Switch.
Figure 4 – Front panel of the 24-port Web-Smart Switch
LED Indicator:
Comprehensive LED indicators display the status of the switch and
the network (see the Understanding LED Indicators section).
Gigabit Ethernet Ports (Port 1~24):
The Switch includes twenty four Gigabit twisted pair ports, each
supporting auto negotiable 10/100/1000Mbps and auto MDI/MDIX
crossover detection functions. This function provides true “plug and
play” capability. These ports can operate in half-duplex mode for
10/100Mbps and full-duplex mode for 10/100/1000Mbps.
Mini GBIC Ports(Option Port 23~24)
The Switch is equipped with two mini-GBIC ports, supporting an
optional 1000BASE-SX/LX mini-GBIC module.
Note: When a port is set to “Forced Mode”, the Auto MDI/MDIX
will be disabled.

14
Rear Panel
Figure 5 – Rear panel of the Switch
Reset button: The Reset button resets all configuration settings back
to the factory default.
Note: Be sure that to record all custom settings of the Switch before
pressing the reset button. Resetting the Switch back to factory default
settings will erase all custom configurations.
AC Power Connector: Plug in the female connector of the provided
power cord into this connector, and the male into a power outlet.
Supported input voltages range from 100-240V AC, and 50-60Hz.
●
Reset button

15
UNDERSTANDING LED INDICATORS
The front panel’s LED Indicators provide instant status feedback,
which help monitoring and troubleshooting LAN issues if needed.
Figure 6 – LED indicators of the Switch
Power and System LEDs
Location LED
Indicative Color Status Description
Solid Light Power is On
Power Green
Light off Power is Off
Blinking When the CPU is working,
the System LED will blink
Per Device
System Green
On/Off The CPU is not working
LED Per
10/100/
1000 Mbps
Port
Link/Act Green
Solid Light
When there is a secure
connection (or link) to an
Ethernet device in any of
the ports

16
Blinking When there is reception or transmission (or Activity)
of data in any port
Light off No link detected
Green Solid Light When there is a secure connection (or link) to
1000Mbps device in a port
Amber Solid Light
When there is a secure
connection (or link) to
100Mbps device in any of
the ports
Speed
Off Light off
Possible link at 10M or no
link
Solid Light
When there is a secure
connection (or link) to
Ethernet device in any of
the ports
Blinking When there is reception or
transmission (or Activity)
of data occurring in a port
Link/Act Green
Light off No link
Green Solid Light
When there is a secure
connection (or link) to a
1000Mbps device in any of
the ports
LED Per
SFP Port
1000Mbps
Off Light off No link