Wireshark-users: Re: [Wireshark-users] mesure jitter
Hi,

which definition of jitter you want use? There are a lot of definitions
of jitter. Normally it is the variation of the latencies. But if you
measure with netperf or iperf the jitter is defined in a different
manner. (RFC3550)

In fact for jitter corresponding to (J. Mantel, "Definition Of Jitter
And A Fast Method To Derive It", electronic Letters, 2(8), 1966) you
have to measure the latencies and to calculate the standard deviation.
You have to measure more than 31 values to approximate the real jitter.

In which Network you measure? Or better: What you have measured? The
round trip time? Then be sure that the link is symmetric. Elsewhere you
will not measure the real latency. Or you have sent on host A udp
packets and have measured the receiving time points on host B?

regards

Maik

Avihai Shoham schrieb:
> Hi
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> I wonder how I can measure jitter with wireshark.
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> I have a pcap of udp packets and I want to know what the network jitter is
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> Please advice.
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> 
> Thanks in advanced
> 
>  
> 
> Avihai
> 
>  
> 
>  
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>  
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> 
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