Switched LANs 
 
 
LAN switches multiply the performance of Ethernet
- In traditional Ethernet the computers of a segment share a 10 Mb/s half duplex channel
 - In switched Ethernet every work station has a 10 Mb/s full-duplex channel of its own
 - 100 Mb/s and 1 Gb/s Ethernet is normally switched leading into performance beating the current ATM networks
 
A modern LAN Switch facilitates the interconnection of various types of LANs, such as:
- 10 Mb/s Ethernet
 - 100 Mb/s Ethernet
 - 155 Mb/s ATM (LAN Emulation) 
 - 622 Mb/s ATM
 - 1 Gb/s Ethernet