Covers large geographical areas
Circuits provided by a common carrier
Consists of interconnected switching nodes
Traditional WANs provide modest capacity
64000 bps common
Business subscribers using T-1 service – 1.544
Mbps common
Higher-speed WANs use optical fiber and transmission technique known as asynchronous transfer mode (ATM)
10s and 100s of Mbps common
Tuesday, December 30, 2008
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