What is the difference between layer 3 and layer 2 switches?
QUESTION POSED ON: 04 OCT 2005
QUESTION ANSWERED BY: Howard Plumley, Jr.
Layer one is for switches and packets. Where did it come from and where is it going? This is one step up from a hub, where everybody talked to everybody else.
Layer two is for route processing. I know where the information is going and coming from, but now I want to find the fastest route there.
Layer three is for intelligent network services. I know which route, but now I care about what. This layer gives priority to Voice over IP or video to reduce and prevent dropouts. This layer is application-sensitive.
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