FIT   100
© Copyright University of Washington 1999-2000
Logical Network … Physical Network
vAn important concept ...
vIn computing it is common to separate the logical idea of something -- the way you think about it -- from the physical implementation -- how it’s actually built
vThis is called a physical / logical separation
vIn networking, the domain names make up our logical network, a hierarchical arrangement of names that tell us associations:   cs.washington.edu
vThe computers actually use physical addresses
vThe DNS enables the separation by making the correspondence between the two
v