[1039] in North American Network Operators' Group
Re: AS690 advisory update
daemon@ATHENA.MIT.EDU (Steve Heimlich)
Wed Nov 15 16:28:29 1995
To: Cengiz Alaettinoglu <cengiz@isi.edu>
Cc: Tony Bates <Tony.Bates@mci.net>, ser-rr@ser.bbnplanet.net, nanog@merit.edu,
rps@isi.edu
In-Reply-To: Your message of Wed, 15 Nov 1995 11:04:14 PST.
<199511151904.AA20610@cat.isi.edu>
Date: Wed, 15 Nov 1995 14:11:49 -0500
From: Steve Heimlich <heimlich@ans.net>
Yep, sounds useful (for starters).
How about a tool to clean up the RADB? :-)
Steve
>
> Steve Heimlich (heimlich@ans.net) on November 14:
> > <ramble begins>
> >
> > Some sort of scalable, easily maintainable advisory mechanism would
> > be cool to have, but I haven't really thought about it too much.
> > I'm certain that a tool could be written to do a search over the
> > graph of ASes defined in all the registries, but we'd need to make
> > sure that the registered information accurately reflected global
> > AS topology. Using this tool once a day (or however often), you
> > could get a view of the paths to any AS from your own point of view
> > (e.g., from 3561 or 690 to anywhere). Almost like an administrative
> > version of IDPR I suppose. The backend of that thing could munge
> > your aut-num (or provide a nice list of suggestions).
> >
> > <ramble ends>
>
> Steve,
>
> Currently under development here at ISI is a tool that we call a
> what-if database. It will enable one to change policies temporarily
> (i.e. without actually registering in any database) and do analysis.
> For example, you can change your as-in policies
to ANY and use prpath to find paths or prconn (currently being
> developed) to find all the reachable destinations. The tools, when
> interacting with the what-if database, may give you the delta of the
> changes. Hence, the result of prconn may be the new address/prefixes
> that are now reachable and were not before and vice versa.
>
> Of course, for this tool to be useful, radb needs to be cleaned up of
> bogus aut-num objects, and decent aut-num objects need to be
> maintained by all (well most:-).
>
> Do you think something like this covers what you want?
>
> Cengiz
>
> --
> Cengiz Alaettinoglu Information Sciences Institute
> (310) 822-1511 University of Southern California
> http://www.isi.edu/div7/people/cengiz
