Re: Reduce zenmap topology noise (patch)

[David Fifield <david () bamsoftware com>]

On Tue, Jan 10, 2012 at 08:42:09AM +0100, Anders Sundman wrote:
> Hi David,
>
> On 2012-01-09 05:14, David Fifield wrote:
> > On Wed, Dec 14, 2011 at 10:51:28AM +0100, Anders Sundman wrote:
> > > I suggest combining nodes in the graph that represent anonymous hops
> > > between two known devices.
> > >
> > >          / anon_1 \
> > > ..-> ip_a          ip_b -> ..  => .. -> ip_a -> anon_1 -> ip_b -> ..
> > >          \ anon_2 /
> > >
> > >
> > > Here is a patch implementing this behavior:
> > >
> > > http://www.4zm.org/files/2011/integration.py.diff
> >
> > I think I see what this is supposed to be doing, but it didn't work when
> > I tried it. Here's an XML traceroute file and a graphic of what I'm
> > seeing.
>
> Thanks for testing the patch!
>
> It only removes one anonymous hop and your trace contains a chain of two
> anonymous hops. That's the reason why it won't work.
>
> It would be great to extend the 'pruning' functionality to cover these
> chains of anonymous hops as well. However I won't be able to do it any
> time soon.

I added a todo item to finish up this task and handle the case of two or
more consecutive timeouts. However it's not a priority for me, so if
this is important to someone, please send a patch if you want to see it
done quickly.

David Fifield
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