|
Local area network
What is an Lan?
One understands a computer network by local area network within a spatially restricted area in the size of maximum about 1 miles. Local area networks are greater than Personal Area Networks but more smally as metropolitan area networks, wide area networks and global area networks. Local area networks can be there found as a firm installation where several computers shall be integrated into a network durably about small distances at a certain place. For some events like technology oriented conventions, for example the chaos communication congress or local area network parties they are built up temporarily, too.
A local area network can be built up by means of different technologies. Ethernet via Twisted peer cables, special is the furthest common standard almost Ethernet with up to 1000 MBit/sec of data throughput. Tokens ring are increasingly more insignificant, FDDI and ARCNET. One calls wireless local networks Wireless local area network, they usually become standards from the group of IEEE 802.11 realized by means of one which are largely compatible to the cable-bound Ethernet.
Load-bearing elements of a local area network are Repeater, piston stroke, Bridges and switches. As a rule, a local area network represents exactly one broadcast domain, therefore the area of a computer net in which all attached equipment can communicate directly with each other with her hardware address on layer 2 of the ISO/OSI reference model. A broadcast which usually doesn't desert this area either is a message to all domain participants.
A local area network also can, however, be subdivided into several Virtual local area networks to divide the net communication of a single physical local area network up on two or more VLANs logically. A net participant can access to other nets leave the broadcast domain by means of a router, around so, to get such as other local area network or the Internet. If an Internetrouter is in the net, then this has one public IP-address on the Internet, mostly private IP-addresses are allocated during the hosts in the local area network. So that the hosts can communicate with the Internet, Masquerading, a special case of the NATs, is operated on the router.
Broad topics of our page:
|
back to internet
|
Themen:
WP Themes
Programme
Webmaster
SEO Lexikon
Foto Download
Info - Tipp:
Analytics
Webdesign
ECommerce
|
France 
