Basic HTML version of Foils prepared Dec. 6 98

Foil 5 WAN Basics (2)

From Introduction to Network WANs Lectures at Xi'an Jaotong University -- Sept 1998. by Roman Markowski
Circuit switching - dedicated physical circuit is established, maintained and terminated (example ISDN)
Packet switching - network devices share a single point-to-point link. Multiplexing is used (ATM, SMDS, X.25,FR)
WAN Virtual Circuits - logical circuit to enable reliable communication between network device (PVC, SVC)

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