Advanced Networking: Issues and Future

03-08-23 dykim@{cnu.ac.kr; anf.ne.kr} 1

Advanced Networking:Issues and Future

Dae Young KIMAug. 23, 2003

dykim@{anf.ne.kr; cnu.ac.kr}

03-08-23 2dykim@{cnu.ac.kr; anf.ne.kr}

Contents Part I: Network Technology Evolution

Where We Are Lessons What’s Next

Part II: Deployments and Applications Global Advanced Networks Cyber Infrastructure E-Science Third Wave


Part I:Network Technology

Evolution


Where We Are (I)

By Steve Deering

email WWW phone...

SMTP HTTP RTP...

TCP UDP…

IP

ethernet PPP…

CSMA async sonet...

copper fiber radio...

email WWW phone...

SMTP HTTP RTP...

TCP UDP…

IP

ethernet PPP…

CSMA async sonet...


email WWW phone...

SMTP HTTP RTP...

TCP UDP…

IP6


email WWW phone...

SMTP HTTP RTP...

TCP UDP…

IP6


IP as Ultimate Internetworking Glue IP over Everything Everything over IP Hourglass vs Winegl

ass


Where We Are (II) Ethernet as Winning Link Technology

Ethernet Everywhere WLAN = Wireless Ethernet?

IP + Ethernet for Data Not perfect for QoS Streams(Voice, Audio, V

ideo) Just right for non-QoS(quasi-QoS or CoS) QoS possible for a few sessions


Lesson: Keep it Simple and Stupid

Simple is the best Internet vs OSI Ethernet vs ATM

End-to-End Argument Keep network simple/stupid and Put Intelligence at edges/ends Don’t build in the core anything that can be

built at edges/ends


Lesson: Flexible vs Conservative

Protocol Be flexible in what you receive Be conservative in what you send Example: TCP

Network Be flexible in what you adopt Be conservative in what you abandon Examples: Magnetic, Modem, Copper, ... Future examples: Ethernet, IP, ATM, ...


Lessons: More

Convergence Data + Voice Wired + Wireless Dream Not Come True?

Extremely difficult to put new functions/features in the Infra

Layer independence Need new assessment


What’s Next? Internetworking issue over: IP Applications, Services!

Middleware, Web Services, GRID, … Wireless: Just last hop

Mobility, Security, QoS Physical, Medium; Still evolving Long way yet to the Netopia? We’re in the low tide.


Issues Yet Pending

QoS Multicast; Group Communications Mobility Security Which layer?

Not IP? Link? Application? Wireless


QoS(I) Different Ideas about QoS

Security, Static BW, Rigorous Definition of QoS

Reliability Throughput

Dynamic thru Quasi-dynamic Delay, (Delay) Jitter


QoS(II)

Back to the Basics/Principles(KISS) Circuit for QoS Packet for Data Don't mix up

Circuit over Packet? ATM, PWE, etc., …

Packet over Circuit!


SAND

MM

QoS

PKT

Circuit over Packet

QoS(III)


And More Multicast

Not at the IP layer? At the Application Layer?

Overlay Multicast, CDN At the Link or Physical Layer?

Mobility Fast enough? Where?

Security Mature? Convenient?


Part II:Deployments and

Applications

Advanced Network Forum (http://anf.ne.kr)

Global Advanced Global Advanced NetworksNetworks

APAN

CII-K/ANF

Internet2CII/NSF

GEANT/EUeScience/UK

http://anf.ne.kr/main.htm



Korea

JapanTEIN

TransPAC

APII-2Link

622Mbps * 2

10Gbps

45Mbps

China

Thailand

Malaysia

Singapore

Indonesia

Philippines

Australia

Vietnam

GEANT(to

Paris)

Internet2/STAR TAP(to

Chicago)

ANF Vision of ANF Vision of Future Distributed HUBFuture Distributed HUB

ANF Vision of ANF Vision of Future Distributed HUBFuture Distributed HUB

Myanmar

nGbps

nMbps

APII, A3I Links



Distributed Cluster – Proposal

Access PointExchange Point

Australia

KoreaJapan

China

Thailand

Malaysia

Singapore Indonesia

USA

PhilippinesVietnam

Hong Kong

Sri Lanka

Taiwan

South East Asia Cluster(MY, TH,…)

North America

North East Asia Cluster(JP, KR,…)

Europe

Oceania Cluster(AU, ,…)


IEEAF: APAN Opportunities

IEEAF: 622 Mbps POS +10 Gbps

AARNet



연구 교육을 위한 특수지식환경(Grid community, e-Science community, virtual community)

교육훈련 및 프로젝트 어플리케이션

HighPerformance

Computationalservices

Base Technology: computation, storage, communication

Networking, Operating System, Middleware

Data, Information,Knowledge

Managementservices

Observation,Measurement,

Fabricationservices

Interfaces,Visualization

services

Collaborationservices

= Cyberinfrastructure : hardware, software, service, personnel, organization

Cyberinfrastructure (NSF)Cyberinfrastructure (NSF)

Components of CI-enabled science & engineering


CollaborationServices

Knowledge managementinstitutions for collection building

and curation of data, information,literature, digital objects

High-performance computingfor modeling, simulation, data

processing/mining

Individual &Group Interfaces& Visualization

Physical World

Humans

Facilities for activation,manipulation and

construction

Instruments forobservation andcharacterization.

GlobalConnectivity

Streams of Activity Converging in a CI InitiativeC o

l lab o

rato

ries

GRIDS (broadly defined)

E-science

CI-enabled Science & Engineering Research & Education

Specific disciplinary projects (not using above labels)


Futures:The Computing Continuum

National PetascaleSystems

National PetascaleSystems

UbiquitousSensor/actuator

Networks

UbiquitousSensor/actuator

Networks

LaboratoryTerascaleSystems

LaboratoryTerascaleSystems

Ubiquitous Infosphere

CollaboratoriesCollaboratories ResponsiveEnvironmentsResponsive

EnvironmentsTerabit

Networks

ContextualAwarenessContextualAwareness

SmartObjectsSmart

Objects

Building Out

Building Up

Science, Policy and Education

PetabyteArchivesPetabyteArchives


Cyberinfrastructure Opportunities

LIGO

ATLAS and CMS

NVO and ALMA

The number of nation-scale projects is growing rapidly!

Climate Change

Third Wave of the Internet The first wave - text and data services such as e-mail and FTP

The second wave - the web which improved ease of use and facilitated the transfer of images, sound and video

The third wave - integration of grids - p2p networking - open source - distributed computing enabled by next generation web services, semantic web and high speed networks


Today’s NetworkAdvanced Network Forum (http://anf.ne.kr)

Application

OS

Data

Application

OS

Data

Network

UserUser

The application is tightly bound to the OS

The network is a mechanism for applications to communicate with each other

The network is subservient to the computer

Third Wave NetworkAdvanced Network Forum (http://anf.ne.kr)

Network

Application and Data

OS

Data

OS

Data

OS

Data

OS

Data

Third Wave

OS OS

Application and data exist on the network and are uncoupled from any specific machine or location

The computer is subservient to the network

Third Wave

Third Wave Third Wave Third Wave Third Wave

Grids - Third Wave -Web


Computational Complexity

DataComplexity

Source: Toney Hey UK eScience Grid


Conclusion

IP, Optical, Wireless Low Tide in Networking Research Yet Long Way to the Netopia Chances for the Innovative Information Infrastructure The Third Wave

Advanced Networking: Issues and Future

Documents

Transcript of Advanced Networking: Issues and Future