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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)