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Next Generation Network

Gulshan Rai,

Executive Director, ERNET

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History of Communication

Telegraph

Telephone

Computer Communications• X.25• ISDN• FR etc.

ATMOptical Network

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Evolution of networks

First generation networksdesigned based on copper-based transmission

mediumexample, like Ethernet & Token Ringdisadvantage: each node has to inspect

whether incoming information meant for itfiber is not used

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Evolution of networks (continue…)

Second generation networkscopper replaced by fiberachieved higher bit rate, longer distance and higher

reliability higher network throughput due to higher transmission

rates still use traditional architecturesdisadvantage: nodes still have to process information

intended for other nodes

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Evolution of networks (continue…)

Third generation networksexploit unique features of fiber, like huge spectral

bandwidth and the low propagation loss employ lightwave techniques carriers in multiple high capacity channels, which can

be individually configuredvery high network throughputtermed as all optical networks (AON)

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Bandwidth Requirements

•Banking transaction

•File server

•B&W images

•Colour images

•Fax

•Freeze-frame video

•CD audio

•VCR-quality video

•Studio-quality video

•High-definition TV

•3D computed tomography

•Scientific visualization

Character-oriented data (max 1 KBPS)

Interactive image (max 5 MBPS)

Multimedia

(max 10 MBPS)

Data visualization

(> 50 MBPS)

Inc reasing B

andwidth

What we need is bandwidth & connections!

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The Rise of the Empowered Consumer Evolutionary Phases of Experience

Provider to User Dynamic

User to ProviderDynamic

Experience

PassiveBroadcast TV, Web Access

PickService Bundles, VoD

ParticipateInteractiveGaming, Collaborative Services

ProduceCreate Playlists, Remix, Blogs,

ConnectOne Service Fits All, Discrete Model

TransactE-Wallet

InteractPersonalization, Socialization

EmpowerComplete Customization

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Consumer Needs Are Evolving Beyond Connectivity:Requires Integrated Voice / Video / Data with Mobility

Subscriber Personalization: Actively manage the subscribers identity and adjust the service offering/packaging (i.e., different identity in different worlds)

Mass Scalability:Leverage mass-customization principles:Service-bundling; subscriber-grouping and per-group processing

Service Evolution:From transport-based service models (time/distance/volume) to content-based service models

IP NGN Infrastructure

Physical and Social Context Determines the Application Mix Used

Home Office / VPN Internet AccessIM / Group Chat IPTV/VoDOnline Gaming

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Web ServicesCollaboration Applications Storage/Computing

Convergence

Business Needs Are Evolving Beyond Connectivity:Requires Highly Available, Secure Managed Services

Helping Businesses Reduce Cost / Free Resources to Focus on Core Competency

High Availability: Managed networks can help ensure business continuity in the face of everyday interruptions and unexpected disasters

Application Awareness:Allows operators to classify applications, apply application-specific QoS policies while metering / billing for services on a converged network

Service Security:Providing firewalls and intrusion detection systems (and keeping them updated) and using encryption for all sensitive data

IP NGN Infrastructure

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… But This Approach Places Even More Stringent Requirements on the Infrastructure

Integrated• Virtualization• Application Aware• Modular Approach• Service Control• Policy Control

and Execution

Resilient• Multilayer Security• High Availability• Scalable

Adaptive• Self-Provisioning• Self-Optimizing• Self-Defending

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Transition to IPNGN

Application convergence– Integration of new service over broad band

Service Convergence– Service continuity across

Network convergence– Eliminate layers in Network for CapEx efficiencies

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Personalized “Any Play” ExperiencesAny Content to Any Device—Anywhere in the IP NGN

Enterprise Home

Small Business PSTN

Branch Office

ASP

Hotel/Airport

MobileWireless

SONET

DPTCABLE DSL DIAL

LR ETHERNET

LR ETHERNET

DWDM

METRO

On the Move

At Home

At Work

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POP Network - Architecture

Cable POP

DSL POP

Mobile POP

Optical POP))))))

))))))

Backbone Network

Internet

Content Delivery Network

Multimedia Servers

PSTN

OSS

Billing NMS

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Issues and Challenges in the Next Generation Network1. Mobility Services Management

Device Roaming Service mobility User mobility

2. Inter Operability Frame Work Inter working – WiFi Mesh open Interface that offer flexibility to Service

Provider Inter working existing Network

3. Access independent Service Control4. Traffic engineering Issues5. Routing Service/Protocol6. QoS

All kind of Service over all kind of medias Decoupling Services from Network

7. Security DDoS Protection Virus Filtering

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Thank you