© Thomas Kunz 2000
SCE 574
256
What is a network?
äA
network is a distributed application which delivers information between processes in
a distributed
system
äTypically
provides two classes of service:
äreliable
stream (connection-oriented): in-order delivery of information is guaranteed
(telephone system model)
äunreliable
datagram (connectionless): information is delivered on a best-effort basis (post
office model)
Processor
Processor
application
application
network
network