Please, can anyone help me with my problem calculating interarrival jitter?

"Andreina Toro" <[email protected]> Mon, 9 Oct 2006 08:36:00 -0400
Newsgroups gmane.network.wireshark.devel,gmane.network.ethereal.devel
Message-ID <[email protected]>
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Hi everyone, I sent a mail a week ago asking if there was an option in
Wireshark to calculate Interarrival jitter?, or wich is the shortest and
direct way to analyze RTP Streams of each call, so I can get the jitter dat=
a
of each packet of each call  in order to calculate manually the interarriva=
l
jitter?. Please consider the fact that I have to create an automatic routin=
e
with a marco recorder, so everytime the program is run I can calculate this
specific jitter. And please also consider that the number of calls per
capture is variable. I know the mean jitter is calculated by wiresahark, an=
d
also the jitters of each packet.

Please, I=B4m looking forward for any help you could give me, or at least
any answer telling me that there is no way to automatize the calculation of
this interarrival jitter.

Thanks for your time, and sorry for any inconvinience,

Best Regards,

Andreina

PD: Here I copied the mail I sent a week ago, where I explain in detail wha=
t
my problem is

*I have a question about Wireshark and the RTP Streams. I need to calculate
the Interarrival Jitter. I undestand that "it is calculated continuously as
each data packet i is received from source SSRC_n, using this difference D
for that packet and the previous packet i-1 in order of arrival (not
necessarily in sequence), according to the formula J=3DJ+(|D(i-1,i)|-J)/16 =
" *
**
*In the sub menu "Show all RTP Streams" I found the Mean Jitter and the Max
Jitter of each call. But I need the specific Interarrival Jitter of each
call. I know I can calculate it because if I choose a call in that specific
Window and then click on "Analyze" I get another window with a lot of
information, among those the jitter of each packet of each call, with that
data I can manually calculate the Interarrival Jitter that I need. The
problem is that I need to automatize the process using a Macro Recorder,
and I don=B4t see how I can create a general routine using the Keyboard tha=
t
would apply to every Capture in order to get the data that I need. I don=B4=
t
know If I=B4m being clear with what my problem is.. With Wireshark in the R=
TP
Streams Window I need to click on top of the specific stream for an
analysis. So I can not automatize that because depending on the number of
calls in each capture I=B4ll need to click in an specific number of streams=
 in
order to get each analysis in wich I can get the data for the Jitter I
need.?? :( So is there another way to get this Jitter? that would get me mo=
re
directly to the jitter for ALL the calls in a capture?? And is there a way
using ONLY the KEYBOARD and not the MOUSE to click and choose a specific
Stream in the "Show all RTP Streams Window"??? Because the problem with the
mouse is that the window can be located in any position in the Screen... *
* *
*If anyone could help me I would me veeeeeeeeeeeeeeeeeeeeeery thankfull... =
*
* *
*The problem is that I need to create  a routine using Wireshark with a
Macro Recorder and run it every 2 hours in order to calculate Quality of
Service parameters for VoIP Calls... *
* *
*Thaaaaaaaaaaaanks.... you=B4re helping a Venezuelan student in a middle of=
 a
crisis!!!!*
* *
*Best Regards!*
*Andreina *

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<div>Hi everyone, I sent a mail a week ago asking if there was an option in=
 Wireshark to calculate Interarrival jitter?, or wich is the shortest and d=
irect way to analyze RTP Streams of each call, so I can get the jitter data=
 of each packet of each call&nbsp; in order to calculate manually the inter=
arrival jitter?.&nbsp;Please consider&nbsp;the fact that I have to create a=
n automatic routine with a marco recorder, so everytime the program is run =
I can calculate this specific&nbsp;jitter. And please also consider that&nb=
sp;the number of calls per capture is variable.&nbsp;I know the mean jitter=
 is calculated by wiresahark, and also the jitters of each packet.=20
</div>
<div>&nbsp;</div>
<div>Please, I=B4m looking forward for any help you could give me, or at le=
ast any&nbsp;answer telling me that there is no way to automatize the calcu=
lation of this interarrival jitter.</div>
<div>&nbsp;</div>
<div>Thanks for your time, and sorry&nbsp;for&nbsp;any inconvinience,</div>
<div>&nbsp;</div>
<div>Best Regards, </div>
<div>&nbsp;</div>
<div>Andreina</div>
<div>&nbsp;</div>
<div>PD: Here I copied the mail I sent a week ago, where I explain in detai=
l what my problem is</div>
<div>&nbsp;</div>
<div><em>I have a question about Wireshark and the RTP Streams. I need to c=
alculate the Interarrival Jitter. I undestand that &quot;it is calculated c=
ontinuously as each data packet i is received from source SSRC_n, using thi=
s difference D for that packet and the previous packet i-1 in order of arri=
val (not necessarily in sequence), according to the formula&nbsp;J=3DJ+(|D(=
i-1,i)|-J)/16 &quot;=20
</em></div>
<div><em></em>&nbsp;</div>
<div><em>In the sub menu&nbsp;&quot;Show all&nbsp;RTP Streams&quot; I found=
 the Mean Jitter and the Max Jitter of each call. But I need the specific I=
nterarrival Jitter of each call. I know I can calculate it because if I cho=
ose a call in that specific Window and then click on &quot;Analyze&quot; I =
get another window with a lot of information, among those&nbsp;the=20
<strong>jitter </strong>of each packet of each call, with that data I can m=
anually calculate the Interarrival Jitter that I need. The problem is that =
I need to <strong>automatize </strong>the process using a<strong> Macro Rec=
order
</strong>, and&nbsp;I don=B4t see how I can&nbsp;create a general routine&n=
bsp;using&nbsp;the Keyboard that would apply to every Capture in order to g=
et the data that I need. I don=B4t know If I=B4m being clear with what my p=
roblem is.. With Wireshark in the RTP Streams Window I need to=20
<strong>click on top of the specific stream</strong> for an analysis. So I =
can not automatize that because depending on the number of calls in each ca=
pture I=B4ll need to click in an specific number of streams in order to get=
 each analysis in wich I can get the data for the Jitter I need.?? :( So is=
 there another way to get this Jitter? that would get me=20
<strong>more directly to the jitter for ALL the calls</strong> in a capture=
?? And is there a way using ONLY&nbsp;the KEYBOARD and not the MOUSE to cli=
ck&nbsp;and choose a specific Stream in the &quot;Show all RTP Streams Wind=
ow&quot;??? Because the problem with the mouse is that the window can be lo=
cated in any position in the Screen...=20
</em></div>
<div><em>&nbsp;</em></div>
<div><em>If anyone could help me I would me veeeeeeeeeeeeeeeeeeeeeery thank=
full... </em></div>
<div><em>&nbsp;</em></div>
<div><em>The problem is that I need to create&nbsp; a routine using Wiresha=
rk with a Macro Recorder and run it every 2 hours in order to calculate Qua=
lity of Service parameters for VoIP Calls...<span></span> </em></div>
<div><em>&nbsp;</em></div>
<div><em>Thaaaaaaaaaaaanks.... you=B4re helping a Venezuelan student in a m=
iddle of a crisis!!!!</em></div>
<div><em>&nbsp;</em></div>
<div><em>Best Regards!</em></div>
<div><em>Andreina </em></div>

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