NETWORK ARCHITECTURE: 2008

NETWORK ARCHITECTURE

2.1 Local Area Nerwork (LAN)
Local area netowrk (LAN) is hight-speet, low-error data network that cover a realitvely small geogarahpic area (up to few thusand meters). LANs connect workstations, peripherals, terminals, and other device in a single building or other geographically limited area.
LAN can give the high speed in connection to transfers data and interact with another PC in the local area. It depends on amount of user that connects to one device (local area), techonolgy of LAN device and cost.
LAN standards specify cabling and signaling at the physical and data link layers of OSI model. Ethernet, FDDI, and Token Ring are widely used LAN technologies.
Type of pysical LANs topology that are :

1. Bus topology

Bus Topology
A bus topology uses a single backbone segment (length of cable) that all the hosts connect to directly.
2. Ring Topology

A ring topology connects one host to the next and the last host to the first. This creates a physical ring of cable
3. Star Topology
Star Topology
A star topology connects all cable to a central point of conncentration.This point is usualy a hub or swihct, which will be described later in the chapter.