FIT 100
© Copyright University of
Washington 1999-2000
Logical Network … Physical Network
An 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