D-Link DES-1226G Router Manual PDF (Setup & Configuration Guide)
Given below is full router user manual of D-Link DES-1226G router model. You can also download this manual in PDF Format to read later on your computer.
Product user manuals come handy in case you want to know all functionalities of your device, troubleshooting, fist time configuration & setup and in many other situations.
One 24-Port 10/100Mbps+2-Port Combo 10/100/1000Mbps Copper/SFP(Mini GBIC) Gigabit Smart Switch
±
One AC power cord
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Four rubber feet to be used for shock cushioning
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Screws and two mounting brackets
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Quick Installation Guide
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CD-Rom with Web Management Utility and Manual
If any of the above items are missing, please contact your reseller
.
2. Introduction
Congratulations on your purchase of the DES-1226G 24-Port 10/100Mbps+2-Port combo 10/100/1000Mbps
Copper/SFP(Mini GBIC) Gigabit Smart Switch. This device integrates 1000Mbps Gigabit Ethernet, 100Mbps Fast
Ethernet, and 10Mbps Ethernet network capabilities into one cost-effective solution.
This manual discusses how to install your DES-1226G One 24-Port 10/100Mbps +2-Port combo 10/100/1000Mbps
Copper/SFP(Mini GBIC)
Gigabit Smart Switch.
In this manual, the term “
Switch
” (first letter upper case) refers to your DES-1226G 24-Port 10/100Mbps+2-Port combo
10/100/1000Mbps Copper/SFP(Mini GBIC)
Gigabit Smart Switch, and “
switch
” (first letter lower case) refers to other
Ethernet switches.
This chapter describes the features of the Switch and some background information about Ethernet/ Fast Ethernet/
Gigabit Ethernet switching technology.
Fast Ethernet Technology
Ethernet, along with its speedier counterpart Fast Ethernet, is the most popular networking standard in use today. 100Base-T Fast Ethernet is an
extension of the 10Base-T Ethernet standard, designed to raise the data transmission capacity of 10Base-T from 10Mbits/sec to 100Mbits/sec.
An important technology incorporated by 100Base-T is its use of the Carrier Sense Multiple Access with Collision Detection (CSMA/CD) protocol,
which is the same protocol that 10Base-T uses, because of its ability to work with several different types of cable, including basic twisted-pair
wiring. Both of these features play an important role in network considerations, and they make 100Base-T an attractive migration path for those
networks based on 10Base-T. Since the 100Mbps Fast Ethernet is compatible with all other 10Mbps Ethernet environments, it provides a
straightforward upgrade and takes advantage of the existing investment in hardware, software, and personnel training.
Switching Technology
Switching is a cost-effective way of increasing the total network capacity available to users on a LAN. If an Ethernet network begins to display
symptoms of congestion, low throughput, slow response times, and high rates of collision, installing a switch to a network can preserve much or
all of the existing network's cabling and workstation interface card infrastructure while still greatly enhancing the throughput for users. A switch is
a viable solution even if demanding applications, such as multimedia production and video conferencing, are on the horizon. The most promising
techniques, as well as the best return on investment, could well consist of installing the right mixture of Ethernet switches.
A switch increases capacity and decreases network loading by dividing a local area network into different LAN segments. Dividing a LAN into
multiple segments is one of the most common ways of increasing available bandwidth. If segmented correctly, most network traffic will remain
within a single segment, enjoying the full-line speed bandwidth of that segment.
Switches provide full-line speed and dedicated bandwidth for all connections. This is in contrast to hubs, which use the traditional shared
networking topology, where the connected nodes contend for the same network bandwidth. When two switching nodes are communicating, they
are connected with a dedicated channel between them, so there is no contention for network bandwidth with other nodes. As a result, the switch
reduces considerably the likelihood of traffic congestion.
For Fast Ethernet networks, a switch is an effective way of eliminating the problem of chaining hubs beyond the “two-repeater limit.” A switch can
be used to split parts of the network into different collision domains, making it possible to expand your Fast Ethernet network beyond the 205-
meter network diameter limit for 100BASE-TX networks. Switches supporting both traditional 10Mbps Ethernet and 100Mbps Fast Ethernet are
also ideal for bridging between existing 10Mbps networks and new 100Mbps networks.
Switching LAN technology is a marked improvement over the previous generation of network hubs and bridges, which were characterized by higher
latencies. Routers have also been used to segment local area networks, but the cost of a router, and the setup and maintenance required make
routers relatively impractical. Today switches are an ideal solution to most kinds of local area network congestion problems.
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4
VLAN (Virtual Local Area Network)
A VLAN is a group of end-stations that are not constrained by their physical location and can communicate as if a common broadcast domain, a
LAN. The primary utility of using VLAN is to reduce latency and the need for routers, by using faster switching instead. Other VLAN utilities
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.
Port-based (or port-group) VLAN is the common method of implementing a VLAN, and is the one supplied in the Switch.
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5
Features and Benefits
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(24) 10/100BASE-TX Fast Ethernet ports + (2) 1000BASE-T Gigabit Ethernet ports or (2) SFP(Mini GBIC)
for 2 additional copper or fiber Gigabit connections
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Auto MDI/MDI-X support on each port
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Full-/half- duplex transfer mode for 10/100Mbps Fast Ethernet transmission
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Full-duplex transfer mode for Gigabit Ethernet transmission
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Wire-speed reception and transmission
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Store-and-Forward switching method
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Integrated address Look-Up Engine, supports 8K MAC addresses
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Supports 256K bytes RAM for data buffering
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Extensive front-panel diagnostic LEDs
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Broadcast storm protection
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IEEE 802.3x flow control for full-duplex
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Back pressure flow control for half-duplex
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Supports port-base VLAN
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Supports port-base QoS
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Supports Trunking
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Supports Port-mirroring
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Supports Port-setting for Speed/Disable, Flow control
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Easy configuration via Web Browser
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Easy setting via Web Management Utility
±
Standard 19” Rack-mount size
LEDs
LED
stands for
L
ight-
E
mitting
D
iode
.
The front panel LEDs provides instant status feedback and simplifies monitoring and troubleshooting tasks.
LED indicators of the Switch
±
Power
On
When the Power LED light is on, the Switch is receiving power.
Off
When the Power LED light is off, the power cord is improperly
connected.
±
CPU (Management Indicator)
Blinking
: When the CPU is working, the System LED is blinking.
On/Off
: The CPU is not working.
Ports 1-24 Status LEDs
±
Link/Act
On
When the LED light is on, the respective port is connected to
the 10/100Mbps Ethernet network.
Blinking
When the LED light is blinking, the port is transmitting or
receiving data on the 10/100Mbps Ethernet network.
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