RE: VLANs confusing

["Shain Singh" <shain.singh () aapt com au>]

Kern wrote:
> 1. VLANs do not encrypt ANYTHING
> 2. VLANs operate on Layer 2 not 3
> 3. As far as I know, VLAN frames are NOT routable

Sort of. ISL and dot1q trunking protocols are used by switches to "route"
between VLANs. This is usually because VLANs *should* be setup in different
subnets.
In short, the concept of "creating switches within switches" is kind of
true.

in Cisco speak, VLANs separate "broadcast domains"


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