By using wires. :P
The simple answer is that a LAN user (client) will not see all of the packets on the Internet; they will only see the packets for their own LAN segment.
Resource View, Performance Monitor, and Reliability Monitor
C. Edward Lan has written: 'Airplane aerodynamics and performance'
Resource View, Performance Monitor, and Reliability Monitor.
Performance Counters
Performance Monitor
Performance Monitor
It can improve the LAN performance.
Routers....
By depicting a system's performance over a given period of time on a line graph and providing texutal reports on a system's performance over a given period of time.
Yes, using a switch allows you to connect more clients in your LAN. In addition, it limits the amount of traffic collisions in the LAN segment as well, allowing better performance and throughput of traffic.