RE: FW: New project info - X-Bone

Stefan Savage (savage@cs.washington.edu)
Tue, 14 Jul 1998 14:48:31 -0700

The downside I was referring to is strictly pragmatic. Its tough to
rely on multicast for new infrastructure when multicast itself isn't
very well deployed.

I agree with you though. Anyway, it sounds like its time for us to find
a new name... maybe Joints or Marrow? ;-)

> -----Original Message-----
> From: acollins@hotate [SMTP:acollins@hotate]
> Sent: Tuesday, July 14, 1998 2:37 PM
> To: savage@cs.washington.edu
> Cc: syn@cs.washington.edu
> Subject: Re: FW: New project info - X-Bone
>
>
> > The downside of their X-bone is:
> > 1) relies on multicast to work
>
> Not that this is a downside.
>
> > 2) Looks like its simply a way to setup pipes... not in fact a way
> to
> > marshal and manage computational resources
>
> Right. It is a bit confusing though that they keep saying that this
> could be used to deploy active networks, but it doesn't seem to me
> that they have any way to cause arbitrary computation at the overlay
> routers. They talk briefly about having different forwarding
> algorithms for each overlay:
>
> "The overlay can also determine the forwarding algorithm, such as
> shortest-path or policy- or QoS-sensitive."
>
> But they don't seem to have thought through any of the issues involved
> in making this more than a "you set the flag to pick which one of the
> N algorithms that we saw fit to write and deploy" system.
>
> Even as a way to setup pipes, it doesn't look to me like they have a
> story for any of the hard problems, like selecting a virtual
> topology.
>
> I guess it would be nice to know the extent of their DARPA/NSF
> mandate, i.e. do they play to deploy something or just play with this
> thing at ISI. And I guess we need to start thinking about new names
> (since I don't see this filling the vision of our X-bone anytime
> soon).
>
> Andy
>
>
> --
> //--------------------------------------------------------------------
> -----
> // Andy Collins -- KC6YEY
> acollins@cs.washington.edu
> // Graduate Student, University of
> Washington
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