Is There An Internet Architecture?

  Many say there is only a tradition, it was not
  written down for 20 years, or at least not by the
  IAB, but...

  o  the goal is connectivity,
 
  o  the tool is the Internet Protocol, and 

  o  the intelligence is end-to-end.

========

Connectivity Is Its Own Reward

  o  Email and the Internet snowball

  o  Connectivity is more than email, more than the Web

  o  Cooperation between network providers

  o  Be liberal...

========

IP Over Everything

  o  Interconnection of networks (overlay)

  o  IP and new technologies

  o  Unique addresses (Internet addresses)

  o  One main networking protocol

========

The End-to-End Argument

  o  Avoid states and fate-sharing
  o  Datagrams are better than virtual circuits
  o  You shall not trust networks
  o  Networks should do routing
  o  Avoid rigidity in the network
  o  Error control, security, deployment from fringes

                        Saltzer, J. H., D. P. Reed, and D. Clark,
                         "End-to-End Arguments in System Design,"
                           ACM Transactions on Computers Systems,
                                    Vol. 2, No. 4, Pages 277-288.

========

Developing The Internet Architecture

  o  Nobody owns the Internet
  o  Nobody can turn it off
  o  There is no centralized control
  o  (Not even DARPA)
  o  Rough consensus and running code
  o  Feedback from implementation

                               from architecture to
                                     engineering...