LevelOne FSW-2409TFX User Manual

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4
Switching Technology 
Another approach to pushing beyond the limits of Ethernet 
technology is the development of switching technology. A 
switch bridge 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. 
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 networks.  Switches 
supporting both traditional 10Mbps Ethernet and 100Mbps 
Fast Ethernet are also ideal for bridging between the 
existing 10Mbps networks and the new 100Mbps networks.