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

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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

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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

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

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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.

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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.

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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.

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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

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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

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♦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