Program to show what's attached to network switches...

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Program to show what's attached to network switches...

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James Harris...

Posted: Fri Sep 25, 2009 11:32 am

Guest

In case someone else finds this useful here is a Perl program to
report on the devices attached to network switches. It was derived
from Tobias Oetiker's cammer and has added further information about
each device.

http://codewiki.wikispaces.com/cammer_c.pl

To use it you need to know SNMP read-permission community strings for
your routers and switches.

A couple of years ago the program was used extensively to gather
information on devices connected to a Cisco network so I'm including a
Cisco group in the distribution. I'm not in a position to do further
work on the program at present but as long as the interface to the
SNMP support libraries has not changed it should still work just as it
did before.

The web page explains what it does and gives full details on how to
set it up.

James

James Harris...

Posted: Fri Sep 25, 2009 3:22 pm

Guest

On 25 Sep, 15:39, Simon Leinen <simon.lei... at (no spam) switch.ch> wrote:

Quote:

James Harris writes:

http://codewiki.wikispaces.com/cammer_c.pl

Thanks for putting this up! Did you send your improvements to Tobi?

We were in touch about it. Tobias felt too much had changed to merge
them. Of course the original had also moved on by that time. He did
give permission, though, for this version to be forked.

Quote:

[...] I'm not in a position to do further work on the program at
present but as long as the interface to the SNMP support libraries has
not changed it should still work just as it did before.

The Perl SNMP support libraries (which I'm responsible for) are supposed
to have stable interfaces; they were extended over the years, but I
always tried to make sure that existing legal uses would continue to
function as usual. If anyone notices problems in this area, they are
welcome to file a bug, ideally by opening an issue in the tracker under

http://code.google.com/p/snmp-session/

I only learned enough Perl to make the changes we needed and I put off
announcing the program for over a year in case someone had issues
using it that I couldn't help with. So it's good to know the post got
through to the person responsible for those libraries - and, in fact,
that they are maintained. At least someone here knows what's going on!

James

Simon Leinen...

Posted: Fri Sep 25, 2009 6:39 pm

Guest

James Harris writes:

Quote:

http://codewiki.wikispaces.com/cammer_c.pl

Thanks for putting this up! Did you send your improvements to Tobi?

Quote:

to have stable interfaces; they were extended over the years, but I
always tried to make sure that existing legal uses would continue to
function as usual. If anyone notices problems in this area, they are
welcome to file a bug, ideally by opening an issue in the tracker under

http://code.google.com/p/snmp-session/
--
Simon.

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