What is a Layer 3 switch really?

Depending on who you ask, the answer will be different. It seems everyone has an opinion about what a Layer 3 switch is. I have my own personal definition, which is based on the OSI model.

Also, some definitions really beat around the bush. All of this creates confusion in the mind of newbies people concerned and clearly, when you try to make it clear, the answer is not simple, although specialists usually manage to get out of it without too much trouble.

Let’s see what are different definitions we find of Layer 3 switching on the Internet. Continue reading