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Emerging Architectures for Post-IP Networking*

Emerging Architectures for Post-IP Networking*. Daniel F. Macedo 1 , Aldri L. dos Santos 2 ,Guy Pujolle 1 1 Université Pierre et Marie Curie-Paris VI, France 2 Federal University of Paraná, Brazil.

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Emerging Architectures for Post-IP Networking*

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  1. Emerging Architectures for Post-IP Networking* Daniel F. Macedo1, Aldri L. dos Santos2,Guy Pujolle1 1 Université Pierre et Marie Curie-Paris VI, France 2 Federal University of Paraná, Brazil *This work has been partially financed by CNPq, a funding organization from the science and technology ministry, Brazil.

  2. Outline Why should we replace IP? Post-IP Architectures Research Challenges and Directions in Post-IP

  3. The Internet Nowadays IP was very well-designed, being used for more than 30 years now IP is a victim of its own success: new scenarios with significant challenges: • Node mobility • The Internet of things: small, restricted devices

  4. Why should we replace IP networks? Need to decouple routing and addressing! IP is used for identification and routing • It changes when stations roam from one network to another to allow proper routing • Packets addressed to the ancient IP of a station are routed to the old network, breaking connections

  5. Why should we replace IP networks? The End-to-End (E2E) principle is frequently violated • Smart middle-boxes, e.g. NAT and proxies that break other E2E applications • Proxies do not work with SSL connections • NATs are not compatible with P2P • Context-aware networks

  6. Why should we replace IP networks? Too difficult to be managed by humans • Too many nodes • Changes are frequent due to mobility Shift from operator-based management to autonomic-based management Scalable self-organizing solutions, where local decisions lead to near optimal global behavior

  7. An Overview of Post-IP Architectures

  8. AdaptNet Goals • Support mobile users roaming among BSs • Deliver multimedia content over wireless links • IP-compatible Solution: heavy use of cross-layering • Proactively opens TCP connections before handover to allow seamless operation • Automatically changes the codec in the app. Layer

  9. Ambient Networks, Plutarch Post-IP networks will be a concatenation of autonomic heterogeneous networks Architecture • An autonomic management plane • Ambient Control Space (Ambient Networks) • Interstitial Functions (Plutarch) • Several layers of names to cope with mobility • Bearers, End Points and Sessions (Ambient Networks) • Contexts (Plutarch)

  10. Ambient Networks

  11. NewArch Goals • Redesign the Internet from scratch • Rethink the layering model • Provide solutions adapted to wireless links

  12. NewArch The RBA architecture • Role-based forwarding • Improvement of active networks, where roles define the code to be executed in routers • Resembles the stratum paradigm Addressing mobility • Three levels of naming, allowing node and agent mobility

  13. Challenges and Directions

  14. Challenges and Directions An urgent need to rethink layering • IP is hard to kill: Post-IP must support old equipment • Autonomic management of post-IP networks • No attention has been given to • Emergent networks (ad hoc, WSNs, home networks) • QoS • Security

  15. Challenges and Directions Security and Dependability • Standards (benchmarks, tools, etc…) to validate the dependability and security of networks Large scale test-beds • Fast, low-cost testing of new protocols of planetary-scale networks • Several initiatives: PlanetLab, VINI, GENI Virtualization

  16. Questions? Daniel.Macedo@rp.lip6.fr

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