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You are here: Home / ICND1 / Day 2 – CSMA/CD, Switching, and VLANs / Day 2 Tasks / Virtual Local Area Networks (VLANs)

Virtual Local Area Networks (VLANs)

As you have already seen, a switch breaks a collision domain. Taken a step further, a router breaks a Broadcast domain, which means a network would look something like the following figure:

 

Figure 2.13 – Routers Separate Broadcast Domains

 

Before we continue, let’s discuss what a LAN really is. A LAN is essentially a Broadcast domain. In the network shown in Figure 2.13, if PC-A sends a Broadcast . . .

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