[e2e] traffic engineering considered harmful

[Jon Crowcroft]

In message <Pine.GSO.4.32.0106140924110.4833-100000 at caruaru>, "DJamel H. Sadok"
 typed:

 >>Hierarchical  schemes are, at least intuitively" scalable but It would be
 >>intersting to know by how much and if there is "really" need for this in
 >>the Internet as the number of ASs must be not that high.
 
 >>By  the way how  is communication handled in the M3I project?

badly:-)
 
we use multicast...
 >>
 >>>  >>
 >>>  >>On Wed, 13 Jun 2001, David P. Reed wrote:
 >>>  >>
 >>>  >>> At 09:42 PM 6/12/01 +0000, Bob Braden wrote:
 >>>  >>>
 >>>  >>> >   *>
 >>>  >>> >   *>    I'll steal this topic as a chance for some blatant self-promotion:
 >>>  >>> >   *>
 >>>  >>> >   *>    Resilient Overlay Networks:    http://nms.lcs.mit.edu/ron/
 >>>  >>> >   *>
 >>>  >>> >   *>    Take a small collection of hosts around the 'Net.  They
 >>>  >>> >   *> can see different paths in and out of various ASs.  Have them
 >>>  >>> >   *> measure the paths between each other, and if they can establish
 >>>  >>> >   *> a better route by sending their packets indirectly through another
 >>>  >>> >   *> member of the overlay, do so.
 >>>  >>> >   *>
 >>>  >>> >   *>    It's a rough approximation of the ideal that you're alluding to
 >>>  >>> >   *> in your message, since it has the obvious downsides of needing to
 >>>  >>> >   *> go all the way to the edge and then back in, and it's limited in its
 >>>  >>> >   *> view of the available paths, but it's one way to start doing some
 >>>  >>> >   *> of the things you're looking at.  Works pretty well, too, especially
 >>>  >>> >   *> in the face of a few egregiously bad links.
 >>>  >>> >   *>
 >>>  >>> >   *>    -Dave
 >>>  >>> >   *>
 >>>  >>> >
 >>>  >>> >Why isn't this the Tragedy of the Commons waiting to happen?
 >>>  >>>
 >>>  >>>
 >>>  >>>
 >>>  >>> Bob - to me, this RON idea is economic arbitrage.  The more likely "tragedy
 >>>  >>> of the commons" arises because of the selfish behavior of the AS's in
 >>>  >>> seeking to create bottlenecks to extract unjustified rents, and the
 >>>  >>> arbitrage reduces its likelihood.
 >>>  >>>
 >>>  >>>
 >>>  >>> - David
 >>>  >>> --------------------------------------------
 >>>  >>> WWW Page: http://www.reed.com/dpr.html
 >>>  >>>
 >>>  >>>
 >>>  >>>
 >>>  >>
 >>>
 >>>  cheers
 >>>
 >>>    jon
 >>>
 >>>
 >>

 cheers

   jon