31
V. Liberatore
Pervasive Computing
Network Layer
Convergence layer
(IP)
IP (Internet
Protocol)
IP supports
multiple data links
Multiple transports
support IP
Transport independent of data link
Mix and match
nE.g., RTP/UDP over 802.11, Ethernet
nE.g., TCP over Infinet
Application
(the
control application, e.g., close-lever)
Middleware
(common to
multiple applications, e.g.,
resource discovery)
Transport
(e.g., TCP, RTP/UDP)
Data
Link
(low level communication,
e.g. Ethernet, Infinet,
etc.)
Network
(convergence layer: IP)