[e2e] Overly Overlay; Peer to peer is commonplace

demir demir at usc.edu
Sat Dec 29 14:45:25 PST 2001


I completely agree with Geoff.

Alper K. Demir, PhD student
The University of Southern California


On Sun, 30 Dec 2001, Geoff Huston wrote:

> Ran Atkinson wrote:
> >...which comment thoroughly confirms Jon's point, since the Zebra
> >code clearly is not ready (today) for large-scale production networks.
> >It might be ready for such in some future world, but it clearly isn't
> >today.
> >
> >         It *would* be good if some/all of the implementation optimisations
> >to build truly scalable IP routing protocols were documented.  However,
> >most aren't documented, which provides job security for those in the know.
>
> You are possibly working on the assumption that _someone_ knows, but they
> are not telling the rest of us. The alternative explanation is that noone
> knows and there is nothing to tell as yet!
>
> I suspect that the latter is the case - scaleability in routing is (imho)
> all about trade-offs in understanding how pieces of reachability
> information can be discarded without undue loss of functionality of the
> larger system. I'm not aware that this form of tradeoff has passed from a
> imprecisely understood art to that of a definitive set of engineering
> principles so far.
>
>    Geoff
>




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