D-Link DES-1226 [11/42] Introduction
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DES-1218/DES-1226 10/100/1000 Mbps Ethernet Switch User’s Guide
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NTRODUCTION
This section describes the features of the Switch, as well as giving some background information
about Fast Ethernet, Gigabit Ethernet, and switching technology.
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 are proposed to provide greater bandwidth and improve client/server response
times. Among them, Fast Ethernet, or 100BASE-T, provides a non-disruptive, smooth evolution
from 10BASE-T technology.
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 Carrier Sense Multiple Access with Collision Detection
(CSMA/CD) Ethernet protocol.
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 100Mbps Fast Ethernet and a one
hundred-fold increase over 10Mbps Ethernet. Since it is compatible with all 10Mbps and
100Mbps Ethernet environments, Gigabit Ethernet provides a straightforward upgrade without
wasting a company’s existing investment in hardware, software, and trained personnel.
The increased speed and extra bandwidth offered by Gigabit Ethernet is essential to coping with
the network bottlenecks that frequently develop as computers and their busses get faster and
more users use applications that generate more traffic. Upgrading key components, such as your
backbone and servers to Gigabit Ethernet can greatly improve network response times as well as
significantly speed up the traffic between your subnetworks.
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.
Содержание
- 100 1000 mbps 1
- Des 1218 des1226 1
- Switch with optional gigabit module 1
- User s guide 1
- Wichtige sicherheitshinweise 2
- Hardware 3
- Limited warranty 3
- Software 3
- Copyright statement 4
- D link offices for registration and warranty service 4
- Limitation of liability 4
- Limitation of warranties 4
- Trademarks 4
- Bsmi warning 5
- Ce mark warning 5
- Fcc warning 5
- Vcci a warning 5
- Table of contents 6
- About this guide 9
- Conventions 9
- Overview of this user s guide 9
- Fast ethernet technology 11
- Gigabit ethernet technology 11
- Introduction 11
- Ntroduction 11
- Des 1218 des 1226 10 100 1000 mbps switch 12
- General description of switch 12
- Switching technology 12
- Performance features 13
- Base lx sc module des 122gl 14
- Base sx sc module des 122g 14
- Base t module des 122t 14
- Gbic gigabit ethernet module des 122gb 14
- Optional gigabit extension modules 14
- Base sx mt rj module des 122gm 15
- Npacking and 16
- Unpacking 16
- Unpacking and setup 16
- Desktop or shelf installation 17
- Rack installation 17
- Power failure 18
- Power on 18
- Dentifying 19
- Front panel 19
- Identifying external components 19
- Omponents 19
- Xternal 19
- Rear panel 20
- Led indicators 21
- Side panels 21
- Connecting the switch 22
- Onnecting 22
- Switch to end node 22
- Switch to hub or switch 23
- Connecting to network backbone or server 24
- Anagement 25
- Console port rs 232 dce 25
- Local console management 25
- Switch management 25
- User interface 26
- Flow control 27
- Port monitor 27
- Port speed 10 100 mbps utp 27
- Port speed gigabit ethernet ports 27
- Port trunk groups 27
- Software features 27
- Priority queues 28
- Vlan group 29
- Anagement 30
- Management concepts 30
- Oncepts 30
- Port trunk groups 30
- Ieee 802 p priority 31
- Port based vlans 32
- Vlan and trunk groups 32
- Vlan segmentation 32
- Echnical 33
- Pecifications 33
- Technical specifications 33
- Ables and 35
- Cables and connectors 35
- Onnectors 35
- The following diagrams and tables show the standard rj 45 receptacle connector and their pin assignments 35
- When connecting the switch to another switch a bridge or hub a crossover cable is necessary please review these products for matching cable pin assignment 35
- Cable lengths 37
- Engths 37
- Offices 39
- Registration card 41
- Your comments on this product _________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ 41
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