Sabtu, 21 Februari 2009

Switching Technology


Another approach to pushing beyond the limits of Ethernet technology is the development of switching technology.A switching bridges Ethernet Pakets at The MAC address level of the Ethernet Protocol ,transmitting among conected Ethernet or Fast Ethernet LAN segment.
Switching is a cost-evective way of increasing the total network capacity available to user on a local area network .A switch increases capacity and decreases network loading by divinding a local area network into different segmen , which don't compete with each other for network transmission capacity.
The switch acts as a higih speed selective bridge network between the individual segment,automatically forward 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.

for fast ethernet networks, a switch is an effective way of eliminating problems of chaining hubs beyond the "two-repeater limit." a switch can be used to split parts of the network into different collision domains, making it possible to expand your fast ethernet network beyond the 205-meter network diameter limit for 100BASE-TX network. switches supporting both traditional 10Mbps ethernet and 100Mbs fast ethernet are also ideal for bridging between the existing 10Mbps networks and the new 100Mbps networks.Switching LAN technology is a marked improvement over the previous generation of network bridges,which were characterized by higher 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 relative relatively impractial.Today switches are an ideal solution to most kinds of local area network congestion.

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