network design question - is there a big diff between logical and physical

n designing a network, is there a big difference in logical design and physical design - where would I find a good illustration of both?
lwowAsked:
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cnewgaardConnect With a Mentor Commented:
The logical design of a network refers to the design of how information will flow through a network, etc.  The physical desgin relates to the actual physical pieces (servers, workstations, routers, etc) and their locations in the network.  This site gives a pretty good description of both methods.

http://www.more.net/technical/netserv/diagrams/documenting/

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PennGwynCommented:
In many networks, the logical and physical designs can look very similar.  But the support for VLANs on switches allows them to differ, and sometimes they do -- radiacally.

A physical layout is going to be in terms of devices, and cables connecting them.  A logical layout is going to be in terms of subnets and gateways connecting (or separating...) them.

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