[HECnet] HECnet mapping project

[hvlems at zonnet.nl]

I did something like that, about a year ago? But it was manually not automated 
-----Original Message-----
From: Johnny Billquist <bqt at softjar.se>
Sender: owner-hecnet at Update.UU.SE
Date: Tue, 25 Dec 2012 13:34:13 
To: <hecnet at Update.UU.SE>
Reply-To: hecnet at Update.UU.SE
Cc: <sampsa at mac.com>
Subject: Re: [HECnet] HECnet mapping project

On 2012-12-25 12:22, sampsa at mac.com wrote:
[Brian, please don't kill me for announcing this too early :P ]

Guys,

We're working on a network walker that will eventually produce a graph of HECnet.

We're basically doing a NCP SHOW KNOW CIRC, grabbing each area routing node and then recursively walking those.

Well it's a bit more complex than that, but that's the general idea :)

Once this is done, we do a NCP SHOW ADJ NODES to get the nodes in the area of each area router.

This is what we've come up with so far (the ADJ NODES code is under work, so if your node is missing, don't worry - mainly checking all the area routers are there):

http://sampsa.com/routers.svg

Very cool. However, if someone were to do something really useful, it 
would be to instead figure out the actual connectivity.
It's hard to explain exactly what I mean, but in short, that graph have 
quite a lot of lines for the Update bridge, for example. But in reality, 
that is all one ethernet segment. Such a thing would be nice to have 
illustrated as one (thick) line with all nodes attached to that.
The same goes for a local ethernet segment somewhere as well. Having 
everything illustrated as point-to-point connections makes for lots of 
lines, and sometimes some confusion.

Another kind of graph that would be cool (but even harder) would be to 
have a map of the world, with the nodes placed out, and connections. 
That kind of map would work to have everything illustrated as 
point-to-point connections. But figuring out the physical locations is 
another story. (I guess the only way would be if people could put that 
kind of information in some file, in a format that would be machine 
parseable.)

Anyone feeling like tackling this? :-)

	Johnny