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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. - PowerPoint PPT Presentation
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Emerging Architectures for
Post-IP Networking*
Daniel F. Macedo1, Aldri L. dos Santos2,Guy Pujolle1
1 Université Pierre et Marie Curie-Paris VI, France2 Federal University of Paraná, Brazil
*This work has been partially financed by CNPq, a funding organization from the science and technology ministry, Brazil.
Outline
Why should we replace IP? Post-IP Architectures Research Challenges and Directions in
Post-IP
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 mobilityThe Internet of things: small, restricted
devices
Why should we replace IP networks? 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
Need to decouple routing and addressing!
Why should we replace IP networks? The End-to-End (E2E) principle is
frequently violatedSmart 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
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
An Overview of Post-IP Architectures
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
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)
Ambient Networks
NewArch
GoalsRedesign the Internet from scratchRethink the layering modelProvide solutions adapted to wireless links
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
Challenges and Directions
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
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
