Re: FW: RTP Statistics -> line saying you can get the delay, jitter, bandwidth, etc.

[Martin Mathieson <martin.r.mathieson () googlemail com>]

Hi,
Are you talking about the network roundtrip propagation delay, calculated
using RTCP reports?
This uses the DLSR (Delay since Last SR) - wireshark does calculate this, as
described in 6.4.1 of RFC 3550.

I did think about trying to add this to the RTP statistics a long time ago,
but it wasn't obvious how to do it.

Martin


On Wed, Jun 23, 2010 at 6:07 PM, Anders Broman <a.broman () telia com> wrote:

>  Hi,
> Not sure what you mean we do not calculate delay, what is DLSR?
> Delay is the time it took the packet to travel from A to B right? That's
> not easy to calculate
> with high accuracy.
> Regards
> Anders
>
> capricorn 80 skrev 2010-06-23 17:52:
>
> Hi Anders!
>
> I know about this RTP_statistics.
>
> The normal to calculate delay is
>
> Arrival time of frame 2 - Arrival time of frame 1 = Answer
>
> Answer - DLSR to get the delay.
>
>
> I dont see any example or values of delay on
> http://wiki.wireshark.org/RTP_statistics . So my question was how
> wireshark calculate this.
>
> Regards,
>
> Sajid
>
>
>
> ------------------------------
> From: anders.broman () ericsson com
> To: wireshark-users () wireshark org
> Date: Wed, 23 Jun 2010 15:37:50 +0200
> Subject: Re: [Wireshark-users] FW: RTP Statistics -> line saying you can
> get the delay, jitter, bandwidth, etc.
>
> http://wiki.wireshark.org/RTP_statistics
>
> trunk/gtk/rtp_analysis.c
> http://anonsvn.wireshark.org/viewvc/trunk/gtk/rtp_analysis.c?view=log
> :-)
> /Anders
>
>  ------------------------------
> *From:* wireshark-users-bounces () wireshark org [
> mailto:wireshark-users-bounces () wireshark org<wireshark-users-bounces () wireshark org>]
> *On Behalf Of *capricorn 80
> *Sent:* den 23 juni 2010 15:23
> *To:* wireshark-users () wireshark org
> *Subject:* Re: [Wireshark-users] FW: RTP Statistics -> line saying you can
> get the delay, jitter, bandwidth, etc.
>
>
>
> Anyone who can help me in this.
>
> Regards,
>
> Sajid
>
> ------------------------------
> From: cool_capricorn80 () hotmail com
> To: wireshark-users () wireshark org
> Date: Tue, 22 Jun 2010 10:24:19 +0000
> Subject: [Wireshark-users] FW: RTP Statistics -> line saying you can get
> the delay, jitter, bandwidth, etc.
>
>
>
> ------------------------------
> From: cool_capricorn80 () hotmail com
> To: wireshark-users () wireshark org
> Subject: RTP Statistics -> line saying you can get the delay, jitter,
> bandwidth, etc.
> Date: Mon, 21 Jun 2010 17:18:35 +0000
>
>
>
>  Hi!
>
>   The RTP statistics example contains line saying that we can get delay ,
> jitter , bandwidth. I have seen in the example that the calculation is done
> for jitter and bandwidth.
>
>   Can any one describe about it ??
>
>   Please I shall be very thanksful.
>
> Regards,
>
> Capricorn
>
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