A multilayer switch is a computer networking device that switches on OSI layer 2 like an ordinary network switch and provides extra functions on higher OSI layers.

What is an example of a multilayer switch?

An example would be the way Cisco Express Forwarding (CEF) can directly forward packets between hosts. This is possible because both the source and destination MAC and IP addresses are known. A quick inspection of the packet can determine if it is multilayer switch ready.

When would you use a multilayer switch?

Multilayer switching provides many benefits over a traditional routed network. The primary advantage is that a multilayer switch allows administrators to collapse their network, creating fewer layers, while still maintaining the same level of redundancy.