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Transcript of 03-08-23 dykim@{cnu.ac.kr; anf.ne.kr} 1 Advanced Networking: Issues and Future Dae Young KIM Aug....
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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}
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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
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03-08-23 dykim@{cnu.ac.kr; anf.ne.kr} 3
Part I:Network Technology
Evolution
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03-08-23 4dykim@{cnu.ac.kr; anf.ne.kr}
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...
copper fiber radio...
email WWW phone...
SMTP HTTP RTP...
TCP UDP…
IP6
copper fiber radio...
email WWW phone...
SMTP HTTP RTP...
TCP UDP…
IP6
copper fiber radio...
IP as Ultimate Internetworking Glue IP over Everything Everything over IP Hourglass vs Winegl
ass
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03-08-23 5dykim@{cnu.ac.kr; anf.ne.kr}
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
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03-08-23 6dykim@{cnu.ac.kr; anf.ne.kr}
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
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03-08-23 7dykim@{cnu.ac.kr; anf.ne.kr}
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, ...
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03-08-23 8dykim@{cnu.ac.kr; anf.ne.kr}
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
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03-08-23 9dykim@{cnu.ac.kr; anf.ne.kr}
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.
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03-08-23 10dykim@{cnu.ac.kr; anf.ne.kr}
Issues Yet Pending
QoS Multicast; Group Communications Mobility Security Which layer?
Not IP? Link? Application? Wireless
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03-08-23 11dykim@{cnu.ac.kr; anf.ne.kr}
QoS(I) Different Ideas about QoS
Security, Static BW, Rigorous Definition of QoS
Reliability Throughput
Dynamic thru Quasi-dynamic Delay, (Delay) Jitter
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03-08-23 12dykim@{cnu.ac.kr; anf.ne.kr}
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!
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03-08-23 13dykim@{cnu.ac.kr; anf.ne.kr}
SAND
MM
QoS
PKT
Circuit over Packet
QoS(III)
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03-08-23 14dykim@{cnu.ac.kr; anf.ne.kr}
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?
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03-08-23 dykim@{cnu.ac.kr; anf.ne.kr} 15
Part II:Deployments and
Applications
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Advanced Network Forum (http://anf.ne.kr)
Global Advanced Global Advanced NetworksNetworks
APAN
CII-K/ANF
Internet2CII/NSF
GEANT/EUeScience/UK
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Advanced Network Forum (http://anf.ne.kr)
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
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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, ,…)
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03-08-23 19dykim@{cnu.ac.kr; anf.ne.kr}
IEEAF: APAN Opportunities
IEEAF: 622 Mbps POS +10 Gbps
AARNet
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03-08-23 dykim@{cnu.ac.kr; anf.ne.kr} 20
Advanced Network Forum (http://anf.ne.kr)
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)
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Components of CI-enabled science & engineering
Advanced Network Forum (http://anf.ne.kr)
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
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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)
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03-08-23 23dykim@{cnu.ac.kr; anf.ne.kr}
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
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03-08-23 24dykim@{cnu.ac.kr; anf.ne.kr}
Cyberinfrastructure Opportunities
LIGO
ATLAS and CMS
NVO and ALMA
The number of nation-scale projects is growing rapidly!
Climate Change
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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
Advanced Network Forum (http://anf.ne.kr)
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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
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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
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Grids - Third Wave -Web
Advanced Network Forum (http://anf.ne.kr)
Computational Complexity
DataComplexity
Source: Toney Hey UK eScience Grid
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03-08-23 29dykim@{cnu.ac.kr; anf.ne.kr}
Conclusion
IP, Optical, Wireless Low Tide in Networking Research Yet Long Way to the Netopia Chances for the Innovative Information Infrastructure The Third Wave