Atlantis Land 1000BASE-T User Manual

Page of 23
 
3
 
Switching Technology 
Another approach to pushing beyond the limits of Ethernet technology 
is the development of switching technology. A switch bridges 
Ethernet packets at the MAC address level of the Ethernet protocol 
transmitting among connected Ethernet or Fast Ethernet LAN 
segments. 
Switching is a cost-effective way of increasing the total network 
capacity available to users on a local area network.  A switch 
increases capacity and decreases network loading by dividing a local 
area network into different segments, which don’t compete with each 
other for network transmission capacity. 
The switch acts as a high-speed selective bridge between the
 
individual segments.  The switch, without interfering with any other 
segments, automatically forwards traffic that needs to go from one 
segment to another.  By doing this the total network capacity is 
multiplied, while still maintaining the same network cabling and 
adapter cards. 
Switching LAN technology is a marked improvement over the 
previous generation of network 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.