Service convergence
Central Office Switch
RLU
RLU
“Internet Bypass”
Gateway
Building
Campus
City
National
Access Service
Node
Metropolitan-Network
Audio/Video Distribution
(lossy)
Data Distribution
(lossless)
Home
Business
OC12, OC48, OC192, 10GbE fiber links
supply DRAM, Disk, and PC service
Length Scale
Remote
Line
Unit
Data center
Web service
Cisco
Sun
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