Re: RTP v/s UDP

[Kevin Cullimore <kcullimo () runbox com>]

On 4/7/2010 3:07 PM, ankur aggarwal wrote:
> Hi Anders,
>  Thanxs for the reply. My problem is bit different. I want to use UDP 
> only. As 
> http://www.mail-archive.com/wireshark-users () wireshark org/msg03818.html link 
> suggest we cannot use UDP for these calculation, instead use RTP 
> directly. In my project i need to know the difference in RTP and UDP.
UDP is deployed as a transport protocol precisely when people DON'T care 
about measuring traffic that accurately.
> Can any body tell me how to convert .pcap (wireshark file) to excel 
> file. I found this link http://packetbone.com/ . But unfortunately i 
> donot PC with 32 bit + XP in my lab..
>
> Ankur
>
> On Wed, Apr 7, 2010 at 2:57 PM, Anders Broman <a.broman () telia com 
> <mailto:a.broman () telia com>> wrote:
>
>     Hi,
>       Goggling for VLC player found http://www.videolan.org/vlc/ very
>     breifly looking at the info it looks like there are several options
>     for how the video stream is sent if it really is RTP in your case
>     you could use decode as and select RTP and then use the RTP analysis
>     Note that it designed to analyse Audio and some values may not be
>     entirely correct/applicable for Video.
>
>     You can also use the IO-graph to calculate the  bandwidth. If RTP
>     isn't used you may have to digg trough the documentation/sources
>     of the VLC player to find out if you can do the calculations you
>     need. You may have to export the data from the RTP analysis and
>     perform your own calculation from the raw data or update
>     Wiresharks sources to do it for you. You may also have to know
>     what codec(s) are used to do correct calculation. You must also
>     consider where your traces are made and perhaps compare results
>     from the sender side with results on the receiver side. No easy
>     answers here :-)
>     Regards
>     Anders
>
>     ankur aggarwal skrev 2010-04-07 20:10:
> >     Hi Antony ,
> >       Thanxs for your response. What does this mean *"RTP is commonly
> >     carried within UDP"** ??* I found that wireshark provide support
> >     for RTP* *as http://wiki.wireshark.org/RTP_statistics* . If i
> >     need to calculate jitter,bandwith etc. What should i use. How can
> >     i use UDP
> >
> >     Ankur
> >     *
> >     On Wed, Apr 7, 2010 at 1:57 PM, Anthony Murabito
> >     <anthony () iol unh edu <mailto:anthony () iol unh edu>> wrote:
> >
> >         Hi Ankur,
> >
> >         RTP is commonly carried within UDP. Although this is not
> >         mandatory, there are other possible underlying protocols such
> >         as AAL5.
> >
> >         Regards,
> >
> >         Anthony
> >
> >         On 04/07/2010 01:49 PM, ankur aggarwal wrote:
> > >         Hello All,
> > >           I am a new user of wireshark. I am working on stream video
> > >         packets and receving at other end through wireless hops
> > >         (Access point). I used to do this using VLC player and thru
> > >         UDP protocol. I started using Wireshark for analysis of my
> > >         packets. In between i found we cannot calculate jitter ,
> > >         delay etc.. through UDP. Later i found RTP protocol. Now the
> > >         question is what exactly is the difference between UDP and
> > >         RTP in term of networking and in term of Wireshark s/w working.
> > >
> > >         I need some proof as this information will be needed for my
> > >         publication.
> > >         Help me plz
> > >         -- 
> > >         With Regards
> > >
> > >         Ankur Aggarwal
> > >         Research intern
> > >         Optical Zeitgeist Laboratory
> > >         Institut National de la Recherche Scientifique (INRS) - ÉMT
> > >         800, de la Gauchetière Ouest, bureau 6900
> > >         Montréal, QC, H5A 1K6
> > >         CANADA
> > >
> > >         Ph: +1 514 966-2661
> > >         E-mail: ankur.1066 () gmail com <mailto:ankur.1066 () gmail com>
> > >         Web: www.zeitgeistlab.ca <http://www.zeitgeistlab.ca>
> > >         Group Member Page: http://zeitgeistlab.ca/doc/groupmembers.html
> > >
> > >
> > >
> > >         ___________________________________________________________________________
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> > > org>
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> >         -- 
> >         *Anthony*
> >
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> >
> >
> >
> >     -- 
> >     With Regards
> >
> >     Ankur Aggarwal
> >     Research intern
> >     Optical Zeitgeist Laboratory
> >     Institut National de la Recherche Scientifique (INRS) - ÉMT
> >     800, de la Gauchetière Ouest, bureau 6900
> >     Montréal, QC, H5A 1K6
> >     CANADA
> >
> >     Ph: +1 514 966-2661
> >     E-mail: ankur.1066 () gmail com <mailto:ankur.1066 () gmail com>
> >     Web: www.zeitgeistlab.ca <http://www.zeitgeistlab.ca>
> >     Group Member Page: http://zeitgeistlab.ca/doc/groupmembers.html
> >
> >
> >
> >     ___________________________________________________________________________
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> > org>
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>
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>
>
>
> --
> With Regards
>
> Ankur Aggarwal
> Research intern
> Optical Zeitgeist Laboratory
> Institut National de la Recherche Scientifique (INRS) - ÉMT
> 800, de la Gauchetière Ouest, bureau 6900
> Montréal, QC, H5A 1K6
> CANADA
>
> Ph: +1 514 966-2661
> E-mail: ankur.1066 () gmail com <mailto:ankur.1066 () gmail com>
> Web: www.zeitgeistlab.ca <http://www.zeitgeistlab.ca>
> Group Member Page: http://zeitgeistlab.ca/doc/groupmembers.html
>
>
>
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