Changes in network design tend to be evolutionary rather than revolutionary-rarely is a network manager able to design a network completely from scratch. Usually, changes are made slowly with an eye toward preserving as much of the usable capital investment as possible while replacing obsolete or outdated technology with new equipment.
Fast Ethernet is very easy to add to most networks. A switch or bridge allows Fast Ethernet to connect to existing Ethernet infrastructures to bring speed to critical links. The faster technology is used to connect switches to each other, and to switched or shared servers to ensure the avoidance of bottlenecks.
Many client/server networks suffer from too many clients trying to access the same server which creates a bottleneck where the server attaches to the LAN. Fast Ethernet, in combination with switched Ethernet, creates the perfect cost-effective solution for avoiding slow client server networks by allowing the server to be placed on a fast port.
Distributed processing also benefits from Fast Ethernet and switching. Segmentation of the network via switches brings big performance boosts to distributed traffic networks, and the switches are commonly connected via a Fast Ethernet backbone.
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