Hierarchical addressing: route aggregation
“Send me anything
with addresses
beginning
200.23.16.0/20”
Fly-By-Night-ISP
Organization 0
Organization 7
Internet
Organization 1
ISPs-R-Us
“Send me anything
with addresses
beginning
199.31.0.0/16”
Organization 2
Hierarchical addressing allows efficient advertisement of routing
information:
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