nanog mailing list archives

Re: STP Visualization


From: Dave Plonka <plonka () doit wisc edu>
Date: Mon, 30 Nov 2009 13:30:31 -0600


On Mon, Nov 30, 2009 at 06:16:53PM +0000, David Freedman wrote:
I wrote a perl/libgd tool some time ago which acts as a cgi script and
takes live data and makes pretty pictures of it (per vlan).
Note due a bunch of stuff not being uniformly implemented in IOS via
SNMP I've had to screen scrape a little and I'm afraid this means I
don't have any CatOS support.

Let me know offlist if you are interested in the code.

I have something to do this as well, using perl to grab all the
details via SNMP, and then visualization using GraphViz.
You're welcome to use it to start with:

   http://net.doit.wisc.edu/~plonka/stpgraph/

There's a sample PDF in the "examples/" sub-dir.
 
Dave

P.S.  I know initially you request a "good tool", which is in the
eye of the beholder.  This one will want a programmer's eye, I guess.

-- 
plonka () cs wisc edu  http://net.doit.wisc.edu/~plonka/  Madison, WI


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