The ntop is fine, for some type of information. I am running it (just
upgraded to 3.1 recently) right now, but not for flows (I deployed it in a
couple of places where I have trunked or mirrored/spanned ports, for some
baselining). The extraordinary advantage of Crannog's software is the
broadness of search/query methodologies, graphing, etc., which is missing
from ntop. As far as nProbe goes - of course it is great, as there are old
legacy devices unable to export netflows.
I think you should take the same path I took: do not take anyone's word
for it: just go ahead and install ntop, export flows from Cisco, and see
if and/or when you reach the limitations. If you like absolutely
everything you see, just leave it at that. If not - do not spend any money
yet - try this:
http://netflow.cesnet.cz/
I had it running for a while, and I liked parts of it, missing from ntop.
Once you exhaust the above two options, try the caida tools, or take a
look here, for other free options:
http://www.switch.ch/tf-tant/floma/software.html
Having gone through all the steps, myself, I ended up - eventually buying
Crannog's stuff. But even before making a purchasing decision, contact
those guys - they are willing to let you demo their product for at least
30 days ...
Good luck,
Papi
On Tue, 25 Jan 2005 17:52:51 -0500, Bob wrote:
> I thought about trying nTop, nProbe and some nBox's for my company.
> How do you like it compared to the commercial offerings?
>
> We had a visit from Concord and while their product seems to be top of
> the line, it costs that.
>
> -Bob
>
>
>
> On Sat, 22 Jan 2005 11:43:17 -0600, papi <> wrote:
>
>>Crannog's Netflow tracker was by far the best commercial one I have
>>evaluated - thus - eventually - purchased.
>>
>>Luca Deri's open source ntop was a nice one, but what I have - in fact -
>>used from Luca's creations was the commercial (negligible price, compared
>>to Crannog's software) nProbe, which allowed me to create flows from
>>non-netflow/non-Cisco equipment (e.g. Nortel routers, other switches at
>>the trunk level, etc.), and send them to the same collector where my
>>6500s, 38xx, etc also export - so now I have Netflow tracker giving me a
>>complete picture of all the flows traversing my LANs and WAN.
>>
>>HTH,
>>Papi
>>
>>On Fri, 21 Jan 2005 12:10:18 +0100, Martin Raab wrote:
>>
>>> Hi comp.dcom.sys.cisco,
>>>
>>> which software do you recommend for collecting and accounting of
>>> netflow data.
>>>
>>> All routers are Cisco routers from diffrent sizes.
>>>
>>> We want to use netflow version 5. not sampled, since we have sometimes
>>> more than one customer behind one interface. so it should be ip adress
>>> related accounting.
>>>
>>> Software could be open-source or commercial.
>>>
>>> Looking forward to hear from you.
>>>
>>> Thank you.
>>>
>>> Best Regards,
>>> Martin
>>>
>>> PS: Please DO NOT pm, email adress not check often. Reply/Follow up in
>>> this group. Thx.