Communication network – facility that provides a data transfer service among devices attached to the network
Internet – collection of communication networks, interconnected by bridges/routers
Intranet – internet used by an organization for internal purposes
-Provides key Internet applications
-Can exist as an isolated, self-contained internet
End System (ES) – device used to support end-user applications or services
Intermediate System (IS) – device used to connect two networks
Bridge – an IS used to connect two LANs that use similar LAN protocols
Router - an IS used to connect two networks that may or may not be similar
Tuesday, December 30, 2008
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