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
Core
Access
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)
1
2
3
-
N
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)
Node A
IP/ATM/
SDH
Node B
IP/ATM/
SDH
Node C
IP/ATM/
SDH
No optical pass-through
Node A
IP/ATM/
SDH
Node B
IP/ATM/
SDH
Node C
IP/ATM/
SDH
With optical pass-through
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
Initiative
MISSION
• 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,
Services +
On-line shopping,
E-mail, etc
Businesses
IP
Services
Networks
Transport and service network
independent communication
protocol
IP based
broadband access
PSTN/ISDN, MPLS, IP-net, etc
Optical network (DWDM)
ITU workshop: Transition towards Next Generation Networks
Telia Experiment
The IP-Plug is the
next generation
communicationsplug for both Ring
and Web-tone
Customer equipment/Home LAN
Ethernet
10 -> 100 -> 1000 -> ……. Mbit/s
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
ITU workshop: Transition towards Next Generation Networks