The IP Solution

internet-layer gateways & global addresses

• simple, application-independent, least-common-denominator network service: best-effort datagrams (i.e., packet switching)
• stateless gateways could easily route around failures
• with application-specific knowledge out of the gateways:
  • NSPs no longer had monopoly on providing new services
  • Internet became a platform for rapid, competitive innovation

IP

IP

IP

IP

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