Luca Deri wrote:
On Feb 19, 2010, at 5:30 PM, Fernando Calvelo Vazquez wrote:
Yes, that's it! To get a more realistic output. Right now it's only summarizing
info from sampled packet (only reporting a few bits), it's not performing any
estimation about real traffic.
How I could achieve that?
You need to code this into the sflow plugin and expand each packet by the
sampling rate. Is this something you're willing to do?
It is something that is already done, in this way, by some others of
your competitors (like InterMapper Flows). They simply multiply received
sFlow info by the sampling rate (and it gives to you a more
approximately global vision of real traffic).
So... what I should modify then on the sflow plugin?
Thanks a lot in advance for your help Luca.
Cheers,
Fernando.
Luca
Cheer,
Fernando.
Luca Deri wrote:
Fernando
you basically would like ntop to scale up numbers based on the sampling rate?
Luca
On Feb 15, 2010, at 9:23 AM, Fernando Calvelo Vazquez wrote:
Anyone has any ideas about how to scale traffic captured by sFlow sampling?
Thanks a lot in advance.
From: Fernando Calvelo Vazquez <[email protected]>
Date: February 11, 2010 12:21:10 PM GMT+01:00
To: [email protected]
Subject: [Ntop] sFlow & Sampling Rate
Reply-To: [email protected], [email protected]
Hi everybody:
I'm using nTop as sFlow collector.
My switches are sending sFlow sampling packets at 8192 sampling rate.
I would like to know how I could do to show real averages/rates on summary reports,
taking into account this "sampling rate". (Right now reports seem to show
summarized traffic as if it was captured 1 per 1 packet. They only show a few bits of
traffic averages).
Thanks in advance.
Fernando.
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