Need to get detail on traffic on Catalyst 4500

Have used the following IOS commands on lessor models to view such data from the CLI (when a NetFlow collector was unavailable).

router (config) # ip flow-top-talkers router (config) # top 25 router (config) # sort-by packets

router # show ip flow top-talkers

Best Regards, News Reader

Is this a NetFlow command? I may have been a little unclear ... I don't have NetFlow available at all (the Catalyst 4500 needs a feature card and the proper version of the supervisory engine, neither of which I have at any of the sites).

Thanks for your response, though...

--Steve

Yes it is. Sorry about that.

Don't have access to a 4500, and wasn't aware of the additional hardware required to support NetFlow. Even branch office gear (800, 1700 series) can do NetFlow. Although maybe not on such a grand scale.

Thought you were conveying that you didn't have hardware (a host) to export the data too. Thought I was helping with commands that would allow CLI visibility into the data.

Usually I wouldn't respond to posts regarding platforms beyond what I have to work on, but I do see posters (others, not you) with responsibilities well beyond their abilities, and thought I'd take a shot at this post.

;>)

Thanks for the considerate response.

Best Regards, News Reader

Yes, that is using netflow.

The 4500 Sup IV/V platforms require an additional hardware module added to the SUP engine to handle netflow.. (part # WS-F4531)

I don't know the answer either, although I'd like to get some of the $3000 modules in my 4500's to see if the flow talkers command suddenly becomes available.

It's not ideal however, have you considered SPANning the traffic to a port and gathering some stats that way? Wireshark will give fairly limited conversation analysis but it may well do the job - especially if it's a simple traffic pattern.

I have the idea that there are applications that will present information gathered in this way in a decent manner. Charts, stuff like that.

Here is one at random

This one has a free trial