Hi Alexis
I seem to have the opposite problem. MRTG shows 30-35 Mbps but nfsen
seems to show 50-60 Mbps. So far I have assumed it is because I'm not
doing something quite right.
Warren Matthews, Research Scientist II,
Office of Information Technology,
Georgia Institute of Technology.
I do not think anything that I say can be of the slightest public
interest - Grigory Perelman.
On Mar 1, 2008, at 4:40 PM, Alexis Letessier wrote:
Hello,
I am trying to evaluate if my fprobes are analyzing correctly all
the network traffic that i am sending to them. First, I realized
that the optimization parameters in the fprobe man page really
changes their performance. Still there is a problem and i wish to
know if other users have the same results. When i compare the raw
throughput of bits/s of the interface on which the fprobe is
connected with the throughput measured by NFsen , i still find a
small difference. When MRTG shows 280Mb/s, i only have a throughput
of 230Mb/s in NFsen.
Is NFsen only measuring IP throughput? MRTG measures the throughput
considering 802.1q vlan and ethernet header before the IP packet.
How much throughput can be analyzed by NFsen? Do you have any
performance/tuning tips?
Regards,
Alexis
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