What is the difference between level-3 switch and a router?

We use a Cisco Catalyst 5500 user switch which the admin people call a V-lan or virtual Lan. It gives out IP addresses for DHCP I think, but they don't call it a router. What does a router have that a Level-3 user switch doesn't have or vice-versa. What are the benefits or drawbacks of a level-3 switch.

A Layer 3 switch and a router are very similar. Normally, switches make routing decisions at Layer 2 (hardware layer), while a router makes routing decisions at Layer 3 (network layer). When the Layer 3 decision making is incorporated into a switch, this makes the switch function very similar to a router. However, since the switch can also operate at Layer 2 and can route using specialized hardware built into the backplane, in many cases the Layer 3 switch can exceed the performance of a router.

You can get some more information on L3 switches at the link below.

Tags

　　Business Address 　　Call Forwarding 　　Call Handling 　　Answering Service 　　Telephone Answering 　　Mail Forwarding 　　Virtual Address 　　Virtual Assistant 　　Virtual Business 　　Virtual Offices

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