6
V. Liberatore
Pervasive Computing
Protocol “Layers”
l
Networks are
complex!
Many “pieces”:
n
hosts
n
routers
n
links of various
media
n
applications
n
protocols
n
hardware, software
l
Question:
l
Is there any hope of
organizing
structure
of network?
l
l
Or at least our
discussion of
networks?
(Courtesy of
Kurose and Ross)