Re: Flap Viewer

["Henk Uijterwaal \(RIPE-NCC\)" <]

Hi Fabrizio,

> my name is Fabrizio Lombardozzi, I've developed a system to monitor
> inter-AS routing instabilities (route flaps) at the Computer Networks
> Research Group, of the Roma III University, Italy. The system retrieves
> BGP data from RIS, and produces interactive graphs and animations using
> a graph drawing engine and intuitive morphing animations, with a
> reasonably friendly web graphic user interface (it's an applet). I will
> be grateful if you could give me some comments and hopefully
> suggestions.
>
> At the url http://www.dia.uniroma3.it/~compunet/ you will find detailed
> instructions to start the applet and also a gallery with screenshots and
> animations.

This is a really nice tool.  Two questions:

1. Is there a possibility to filter only paths between 2 AS's?  When
   debugging a problem between AS1 and AS2, I'd like to see updates
   sent by AS1 that somehow involve AS2, not everything.

2. Data collection seems to take "forever", well, 10 minutes, but still
   long.  Do you have any idea what causes this and would there be
   any mileage in mirroring/copying the DB, so one doesn't have to do
   queries over the net?

I might have more questions after I've played with this some more.

Henk


ps. This would be a nice thing to present life at RIPE42 in Amsterdam,
    late April.

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That problem that we weren't having yesterday, is it better? (Big ISP NOC)