Wireshark-users: Re: [Wireshark-users] Max. MBit/sec ?
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From: Martin Visser <martinvisser99@xxxxxxxxx>
Date: Thu, 3 Jun 2010 23:40:59 +1000
Maximum throughput is dependent on the sample time - if you change from 1 second to 0.1s to 0.01s you will notice higher and higher peaks.

A 1Gbps ethernet pipe is clocked at 1000000000 bits per second so that is the maximum rate bits will go. But because of the overhead from headers and encapsulation, enforced gaps between packets, the actual thorughput (and data goodput) will be different.

 The IO graph is based (I think) simply on the sum of frame lengths in the sample period you have chosen.
 
Regards, Martin

MartinVisser99@xxxxxxxxx


On Thu, Jun 3, 2010 at 11:29 PM, János Löbb <janos.lobb@xxxxxxxx> wrote:
Hi,

Under the Statistics menu there is the Summary menu item displaying the Avg. MBit/sec at the bottom.  Is there a way to find the Maximum MBit/sec value somehow, or find a way to calculate it ?

On a 1 Gbit/sec pipe I am getting 130M/bit/sec spikes when I look the I/O diagram of the capture.  I am trying to find out if that pipe is capable for more or not taking into account the network subsystem configuration of the machine.  How I/O Diagram is calculating it ?

Thanks ahead,

János
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