ITU workshop: Transition towards Next Generation Networks

Technologies and Services Convergence

ITU workshop: Transition towards Next Generation Networks

R/Evolution vs. User demand

ITU workshop: Transition towards Next Generation Networks

Networking Technologies

ITU workshop: Transition towards Next Generation Networks

IP,ATM, Optical Technologies

Access Core

ITU workshop: Transition towards Next Generation Networks

Evolution of Transmission Technology

– 1st Generation: Copper is transmission medium

– 2nd Generation: Optical Fiber (late 80s) • Higher data rates; longer link lengths

– Dense Wavelength-Division Multiplexing (DWDM, 1994)

• Fiber exhaust forces DWDM• Erbium-doped fiber amplifiers (EDFAs) lower DWDM

transmission cost– 3rd Generation: Intelligent optical networking (1999)

• Routing and signaling for optical paths

ITU workshop: Transition towards Next Generation Networks

Dense Wavelength-Division Multiplexing (DWDM)

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ITU workshop: Transition towards Next Generation Networks

DWDM Evolution– Faster (higher speed per wave),

• 40 Gb/s on the horizon– Thicker (more waves),

• 160 waves possible today– Longer (link lengths before

regeneration) • A few thousand km possible today

– 160 waves at 10 Gb/s = 1.6 Tb/s• 25 million simultaneous phone calls• 5 million books per minute

ITU workshop: Transition towards Next Generation Networks

Optical Pass-Through (Routing)

IP/ATM/SDH

Node A Node B Node C Node A Node B Node C

No optical pass-through With optical pass-through

IP/ATM/SDH

IP/ATM/SDH

IP/ATM/SDH

IP/ATM/SDH

IP/ATM/SDH

ITU workshop: Transition towards Next Generation Networks

Intelligent Optical Networking• Optics is not merely a transmission technology

– Optics provides a flexible layer upon which to deliver network service

• DWDM provides enormous link capacities– DWDM: Physical layer of Intelligent Optical Network

• Routing and signaling of optical paths– Provides significant economies over conventional

network architectures– Enables revolutionary new services

• 2.5 Gb/s path from anywhere to anywhere, on demand!

ITU workshop: Transition towards Next Generation Networks

Next Generation Networks International Initiatives

ITU workshop: Transition towards Next Generation Networks

IETF: IP Next Generation• Main issue: transition from IPv4 to IPv6 technology

– Expanded Routing and Addressing Capabilities– Header Format Simplification – Improved Support for Options– Quality-of-Service Capabilities– Authentication and Privacy Capabilities– Autoconfiguration– Multihoming– http://www.ietf.org

• IPv6 Forum (http://www.IPv6forum.com)– Associated to IETF, founded in Europe to promote IPv6

among industry partners for smooth transition

ITU workshop: Transition towards Next Generation Networks

3GPP: Third Generation Partnership Project

• 3GPP will provide globally applicable Technical Specifications for a 3rd Generation Mobile System based on the evolved GSM core network, and the Universal Terrestrial Radio Access (UTRA), to be transposed by relevant standardization bodies (Organizational Partners) into appropriate deliverables (e.g., standards).

• UMTS Forum and 3GPP are working together for the successful introduction and development of UMTS/IMT-2000 ’’third generation’’ mobile communications systems.

• www.3gpp.org

ITU workshop: Transition towards Next Generation Networks

Internet 2• Develop and deploy advanced network applications and

technologies, accelerating the creation of tomorrow’s Internet– Enable new generation of applications– Re-create leading edge R&E network capability– Transfer technology and experience to the global

production Internet• Focus Areas

– Advanced Applications– Middleware– Advanced Network Infrastructure– New Network Capabilities– Partnerships

ITU workshop: Transition towards Next Generation Networks

IPv6 testing backbone network

ITU workshop: Transition towards Next Generation Networks

CANARIE Inc: Canadian InitiativeMISSION• To facilitate the development of Canada’s

communications infrastructure and stimulate next generation products, applications and services

• Canadian equivalent to Internet 2 and NGI• private-sector led, not-for-profit consortium• consortium formed 1993• federal funding of $300m (1993-99)• total project costs estimated over $600 M• currently over 140 members; 21 Board members

ITU workshop: Transition towards Next Generation Networks

European Initiatives• DANTE: pan-European network to interconnect

the European National Research Networks: SURFNET (NL), JANET (UK), WIN (G), SWITCH (CH), RENATER (F)…

• DANTE's European dimension– TEN-155 Network (Quantum)– Q-MED: TEN-155 network interconnection with

national research networks of Israel and Cyprus– GEANT (follow-up of TEN-155 towards multi Gigabit

core network interconnecting national research networks)

ITU workshop: Transition towards Next Generation Networks

TEN-155/GEANT Network

ITU workshop: Transition towards Next Generation Networks

European experiments: Telia Example

Telephony, VoD, IP-VPN Audio/video, broadcast, e-commerce

WWW, File transfer, Games,On-line shopping,

E-mail, etcServices +Businesses

Optical network (DWDM)PSTN/ISDN, MPLS, IP-net, etc

ServicesNetworks

IP basedbroadband access

Transport and service networkindependent communication protocol

IP

ITU workshop: Transition towards Next Generation Networks

Telia ExperimentThe IP-Plug is the next generation communications-plug for both Ring

and Web-tone

10 -> 100 -> 1000 -> ……. Mbit/s

EthernetEthernetCustomer equipment/Home LAN

ITU workshop: Transition towards Next Generation Networks

Next Generation Network Initiative

• A European IST project to promote the converging next generation networking technologies– A group of IST projects representatives would work

towards an international co-operative work through developing roadmaps, benchmark reports and well established links to international research groups.

• Will establish different focus topical groups• Will manage a central secretariat• Will provide links to research projects• promotes the contribution to standards groups

ITU workshop: Transition towards Next Generation Networks

Conclusions• NGN initiative launched to study innovative NGN

R/Evolution• Networks will have variety of access and core networks

to serve the society• Interworking and interoperability would be major issues• NGN (IPv6, 3G and WDM) would be widely deployed to

provide broadband, high quality and secure services• New communication software will drive the evolution

with differentiated value added services• Standards play a key role in NGN vision