LAN System

Series Local Area or LAN (Local Area Network) system was
womb devices (devices) are connected among one another in an kawas
terhad geographic distances, usually covering a single building or multiple buildings
adjacent. Breadth of the LAN circuit is usually a radius of 10km and not merangkumi
require remote connection technologies provided by Sarekat telecommunications.
There are several popular LAN technologies like Ethernet, Token Ring and FDDI.
Each of them has its own way of working and perkakasan, but in this tugasan
will only discuss the most popular LAN technology specifically Ethernet.
CSMA / CD
Ethernet uses the concept of Carrier Sense Multiple Access with Collision Detection
(CSMA / CD) protocol standard IEEE 802.3 refer.
The concept of CSMA / CD is the arrangement for penghantaran data by the computer / device
simultaneously. All the computers may be brought on when the da ta-when the time but
before data dihantar, he will be attempts to see first if there is another computer delivers
data. If there is, he will wait for the instantaneous (random time) and led to the original
if applicable vacancies at talian.
As if computer A example of technical attempts he will deliver packet
see first if there is a digital signal in the presence of these talian. If clear (no
signal) then the packet will be forwarded penghantaran and if there is a signal (talian used)
then signal "clock" will dihantar computer A stop leads to packet
these. If cubaan conductivity 15 times applicable (collision) and the line was busy,
"Time out" will apply and the packet needs to dihantar original.