[h323plus] RTP Packet Issue

[Simon Horne]

Guys

 

I'm a little confused. I'm not seeing the problem on h323plus CVS. Marker is
definitely on the last packet for a given timestamp.

 

Anyway the issue had been there for quite some time without causing any
issue.  

The fix was added only when I was looking for something unrelated in
wireshark.. J

 

Simon

 

From: h323plus-bounces at lists.packetizer.com
[mailto:h323plus-bounces at lists.packetizer.com] On Behalf Of kc ooi
Sent: 24 February 2011 11:56
To: Jan Willamowius
Cc: h323plus at lists.packetizer.com
Subject: Re: [h323plus] RTP Packet Issue

 

Dear Simon, Jan, and H323plus member,

 

So how it will affect the system during conference as I am not manage to
notice any abnormal behavior during display? 

Thanks.

On Thu, Feb 24, 2011 at 5:07 AM, Jan Willamowius <jan at willamowius.de> wrote:

Hi,

using the latest H323Plus, I see the same timestamp error on video
packets with a marker in Wireshark, but I see it in both directions
(Polycom PVX to H323Plus and reverse).

Regards,
Jan


Simon Horne wrote:
>
>
> Kc
>
>
>
> Yes you are correct there was a bug with the timestamp on the marker
packet
> being incorrect, that should have been fixed in the last release.
>
> Update to the latest release.
>
>
>
> That should also help resolve some issues with packets being discarded.
>
>
>
> Simon
>
>
>
>
>
>
>
> From: h323plus-bounces at lists.packetizer.com
> [mailto:h323plus-bounces at lists.packetizer.com] On Behalf Of kc ooi
> Sent: 23 February 2011 19:54
> To: h323plus at lists.packetizer.com"
> Subject: [h323plus] RTP Packet Issue
>
>
>
> Dear H323plus Team members,
>
>
>
> Recently, I have found some issue when I am doing H.323  testing with
> polycom system (eg. PVX 8.0.2) and checked the packet traffic using
> wireshark.
>
>
>
> I use RTP stream analysis of wireshark for viewing the result, and I
notice
> that every packet(which is final slice of a frame, contain Marker=1) has a
> status of "Incorrect timestamp".
>
>
>
> 1. Why it behave like this?
>
>
>
> 2. Does it affect the receiving site during a conference meeting?
>
>
>
> 3. Is there any timeout for RTP packet handling(like dropping packet) in
> h323plus? Because I found out that it cause large packet loss during the
> conference compare to other h.323
>
>     system on the same situation(ie. same executing environment).
>
>
>
>  Btw, I have done some enhancement on MyOutput display according to the
> suggestion of "Simon" to one of the h323 member, to avoid dropping packet.
>
>
>
> Thanks.
>



--
Jan Willamowius, jan at willamowius.de, http://www.gnugk.org/

 

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