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Next Generation Networks Convergence, evolution and roadmaps

Next Generation Networks Convergence, evolution and roadmaps Dr. Sathya Rao, Telscom Consulting , Berne Rao@telscom.ch. NGN Applications Requirement. IP Everywhere. The Internet Protocol is becoming pervasive but it was designed over 20 years ago More and more devices are using IP

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Next Generation Networks Convergence, evolution and roadmaps

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  1. Next Generation Networks Convergence, evolution and roadmaps Dr. Sathya Rao,Telscom Consulting, Berne Rao@telscom.ch

  2. NGN Applications Requirement

  3. IP Everywhere • The Internet Protocol is becoming pervasive • but it was designed over 20 years ago • More and more devices are using IP • and they require reachability • places a demand on IP address space • 1 billion IP devices by 2003 • requires IP routing to be scalable • IP is a convergence protocol for the evolution of next generation networks

  4. Internet - the way forward • Internet today • Millions of users • Web, email, low-quality audio & video • Applications adapt to underlying technology • Next Generation Network of tomorrow • Billions of users and devices • Convergence of applications and services • New technologies lead to novel applications • Building a real information society with ‘Always-on Network’ • Global village a reality

  5. Internet Growth • Current estimates • 300M users online worldwide, US/Europe-centric • 70M hosts connected with global IP addresses • Most of these are with fixed network • Growth of Mobile internet • WAP, GPRS, EDGE, UMTS,.. With data services • Limitations of IPv4 • with 32-bit addressing allows 4B hosts • but allocation has been done inefficiently • some institutions own a Class A address space • CIDR and NAT have only patched the problems

  6. IP Networked Society • Different types of network infrastructures are linked through common protocol • All communication will be based on packets running on circuit, packet and wireless networks • There will be convergence at service level to reach any one from anywhere at any time

  7. Fixed vs. mobile access

  8. Usage Sessions / Month / GSM sub (leading markets) Fixed WWW Mobile WWW (WAP) 1999 2000 2001 2002 WAP GPRS IPv6 Mobile Internet will be always-on

  9. NGN Requirements-IPv6 • Requirements • Scalability of networks with address space,QoS and security, which are basic features of IPv6 networks • Connectivity with existing IPv4 networks is necessary • IPv6 should happen from the edges, not from the core. • Applications are important for pushing IPv6 • it has to be transparent to the end user • Interoperability with IPv4 has a cost • 100% interoperability is not always necessary • We need a credible transition story.

  10. 3GPP standards status • Issues addressed in 3GPP Rel 5 type network i.e. fast radio via UTRAN, separation of PS and IM domains and addresses: • IP address allocation • Header compression with security • Interworking with IPv4 network • SIP VoIP (and possible multimedia) • QoS • DNS • Interworking of PS and IM domains • Roaming • Time to setup GTP tunnels • Etc

  11. Moving towards IPv6... Moving towards IPv6 is both a near-term and a long -term concern of network dependent businesses • equipment manufacturers • network owners • service providers and public authorities, such as the EC. For Europe, it is at the same time a challenge and an opportunity

  12. Related projects • 6INIT: IPv6 network intiative • 6WINIT: Wireless IPv6 initiative • MobyDick: Fixed mobile network trials • WINE: Wireless internet • NGN Initiative • GEANT: Pan European academic network • OPTIMIST

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