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Reduce zenmap topology noise (patch)
From: Anders Sundman <anders () 4zm org>
Date: Wed, 14 Dec 2011 10:51:28 +0100

Hi,

When running many traceroutes that traverse the same "anonymous" hop between two known hosts, zenmap creates a new node in the graph for each traceroute. This introduces a lot of unnecessary clutter in the graph. 200 traceroutes passing 2 (physical) anonymous devices currently generates 400 nodes in the topology graph.

Sure, it might be a new physical anonymous device each time, but it most likely isn't. Even if it is, I don't think it makes sense to represent them as two distinct nodes (since there is no way to tell them apart).

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

Regards,
Anders
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