D-Link DES-1026G User Manual

D-Link DES-1026G

24-Port 10/100 + 2-Port 10/100/1000Mbps

Gigabit Ethernet Switch

Manual

Second Edition

Building Networks for People

Table of Contents

1. Package Contents.............................3

2. Introduction ......................................3

3. Installation........................................8

4. Technical Specifications ................11

5. Contacting Technical Support........12

6. Warranty ............................................13

P/N:1907E7224TA6002

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1. Package Contents

 One DES-1026G 24-Port 10/100Mbps + 2-Port

10/100/1000Mbps Gigabit Ethernet Switch

 One AC power cord
 Four rubber feet to be used for shock cushioning
 Screws and two mounting brackets

 Manual

If any of the above items are missing, please contact your reseller.

2. Introduction

Congratulations on your purchase of the DES-1026G 24-Port
10/100Mbps + 2-Port 10/100/1000Mbps Gigabit Ethernet 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-1026G 24-Port
10/100Mbps + 2-Port 10/100/1000Mbps Gigabit Ethernet Switch.

In this manual, the term “Switch” (first letter upper case) refers to your
DES-1026G 24-Port 10/100Mbps + 2-Port 10/100/1000Mbps Gi gabit
Ethernet 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. 100BaseT Fast Ethernet is an

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extension of the 10BaseT Ethernet standard, designed to raise the data
transmission capacity of 10BaseT from 10Mbits/sec to 100Mbits/sec. An
important technology incorporated by 100BaseT is its use of the Carrier
Sense Multiple Access with Collision Detection (CSMA/CD) protocol ­which is the same protocol that 10BaseT uses - because of its ability to
work with several different types of cable, including basic twisted-pa i r
wiring. Both of these features play an important role in network
considerations, and they make 100BaseT an attractive migration path for
those networks based on 10BaseT. 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 an 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 the 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.

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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, the setup and maintenance required
make routers relatively impractical. Today switches are an ideal solution
to most kinds of local area network congestion problems.

Features and Benefits

 (24) 10/100BASE-TX Fast Ethernet ports + (2) 1000BASE-T

Gigabit Ethernet ports

 Auto MDI/MDI-X support on each port
 Full/half duplex transfer mode for 10/100Mbps Fast Ethernet

transmission

 Full duplex transfer mode for Gigabit Ethernet transmission
 Wire-speed reception and transmission
 Store-and-Forward switching method
 Integrated address Look-Up Engine, supports 8K MAC

addresses

 Supports 512K bytes RAM for data buffering
 Extensive front-panel diagnostic LEDs
 Broadcast storm protection
 IEEE 802.3x flow control for full-duplex
 Back pressure flow control for half-duplex
 Standard 19” Rack-mount size

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