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The Internet: Future

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direct broadcast systems that allow two-way links with modest speed ... Then, What 'side' will cyberspace citizens take in this very profound cultural argument? ... – PowerPoint PPT presentation

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Title: The Internet: Future


1
The Internet Future
  • Presented by Hyoundeock Yim
  • System Architecture Lab. In KAIST

2
Two survey papers
  • I. Predicting the Unpredictable
  • Future Directions in Internetworking and Their
    Implications by David J. Farber, University of
    Pennsylvania
  • II. Evolving toward the Next-Generation Internet
    Challenges in the Path Forward
  • -by Stewart D. Personick, Drexel university

3
I. Predicting the UnpredictableFuture
Directions inInternetworking and Their
Implications
  • Abstract
  • Technological Directions
  • Bits To The Home/SOHO
  • -Wireless And Mobility
  • -Home And Personal Networks
  • -Robust And Secure Networks
  • -Computers
  • Some Social Comments
  • -Cyber Rights, Cyber Security, Cyber Economy
  • Conclusion

4
Abstract
  • Coverage
  • -Major technology changes
  • -The implication of these changes
  • Example
  • -The rapid expansion of digital content and easy
    of distribution of that content
  • -gt demand for increased protection

5
Technological Directions
  • Ultra-High-Speed All-Photonic Network
  • -Distinguished from the electro-optical net work.
  • -With speed in the 40-Gb/wave
  • -If it is implemented, it will cause a set of
    very interesting question such as technical,
    economic, and societal problem.
  • cf) low-gigabit-speed networks in late 20th
    century

6
Bits To The Home/SOHO
  • The changes in the local loop
  • 1. Past
  • -Telephone and cable TV
  • Monopoly-regulated, not good service
  • -ISDN
  • Failed - technical and economical reasons
  • 2. Current/Future(???)
  • -Cable-based data service and xDSL
  • Always multimegabit two-way data service and
    low price for SOHO and home customers
  • -Wireless technology

7
Bits To The Home/SOHO
  • Wireless And Mobility
  • - One of the fastest growing areas of
    communications technology
  • - The need for a wireless telephone is increasing
    and the cost is lower
  • - Satellite system
  • direct broadcast systems that allow two-way
    links with modest speed

8
Bits To The Home/SOHO
  • Home And Personal Networks
  • - WiFi(802.11a and b)
  • Short-range very inexpensive radio link,
  • limited range covering a house, distribution
    of data within a house
  • - Bluetooth
  • Very-short-range system, everything in a house
    can be equipped with network access
  • - Intrinsic problems
  • Interference and privacy

9
Bits To The Home/SOHO
  • Robust And Secure Networks
  • - These days, Internet protocol was not designed
    with cyber attack in mind
  • - The next network protocol should be designed in
    respect of security at the beginning

10
Bits To The Home/SOHO
  • Computers
  • - In the light of the H/W, the network-related
    technology will be improved.
  • - However, in the light of the S/W, not!!!
  • Namely, S/W crisis!!!

11
Some Social Comments
  • Cyber-Rights
  • - Our notions of morality, law, right, and wrong
    are not accepted uniformly worldwide.
  • - Then, What side will cyberspace citizens take
    in this very profound cultural argument?

12
Some Social Comments
  • Cyber Security
  • -As more and more of the worlds commerce goes
    onto the Internet, and more and more of a user's
    personal information and identity becomes
    resident in cyber-space
  • - Viruses
  • - These are only users responsibility

13
Some Social Comments
  • Cyber Economy
  • - No effective mechanisms for paying for goods

14
Conclusion
  • The advent of end-to-end photonic networks
  • The advent of very-high-speed connectivity
  • The creation of robust, trusted, and secure
    networks and computer systems
  • The impact of global data networks on the life of
    the worlds citizens

15
II. Evolving toward the Next-Generation Internet
Challenges in the Path Forward
  • Abstract
  • Looking Ahead
  • Dont Forget The Switching And Routing
  • Optical Technology For Creating Rearrangeable
    Networks
  • Multiplexing Issues
  • Quality Of Service
  • Robustness

16
Abstract
  • The Internet is one of the great technical and
    business success stories of the 20th century, but
    has had the financial losses
  • Review a subset of the challenges that lie ahead
    in evolving the Internet to meet the growing and
    changing needs of its users.

17
Looking Ahead
18
Dont Forget The Switching And Routing
  • Moving to higher data rates on the ports and
    correspondingly higher data rates on the
    backplane of a router leads to serious physical
    design challenges
  • - heat dissipation and crosstalk
  • There are also difficult challenges associated
    with the network layer processing of increasing
    numbers of packets per second in a large router.
  • -Differentiated QoS

19
Optical Technology For Creating Rearrangeable
Networks
20
Multiplexing Issues
  • The optical backbone network should combine and
    separate information belonging to various users
    and their application
  • One of solutions is framing
  • - The opening and closing flags of layer 2
    packets(frames)
  • - Definition of periodically repeating
    sequences of byte positions within a stream of
    bytes

21
Quality Of Service
  • Traditional IP networks
  • - A best effort packet delivery basis
  • - No protection against DDoS attack and
    unauthorized disruption of the routing of packets
  • Future QoS requirements
  • -Do not overly burden the routers, sacrifice the
    traditional strength of the Internet and
    introduce new attack vulnerabilities.
  • ex) DiffServ

22
Robustness
  • The Internet is very robust against losses, but
    vulnerable to wrongdoing
  • Need of protocol changes that will allow sources
    of packets to be reliably identified
  • -gtPacket processing burdens on the backbone
    routers
  • Acceptable solution is to put in enough layers of
    network defenses

23
Conclusion
  • If the price is right, one can forecast uses for
    a future Internet requiring a thousand times the
    aggregate backbone capacity of todays Internet
  • Achieving predictable and dependable end-to-end
    QoS will require new robust and secure approaches

24
References
  • http//wombat.doc.ic.ac.uk
  • http//whatis.techtarget.com
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