Hi.

 

I tried running it as follows :

 

On client

./sipp –mi 192.168.0.2 –r 1 –sn uac_pcap 192.168.0.1

 

On server

./sipp –I 192.168.0.1 –rtp_echo –mp 6000 –sn uas.

 

Now, on the server it has “Total echo RTP pckts 1st stream”. However, on the client it doesn’t say this. Also on the Server it doesn’t say that any of the packets have been echod. The counter never increases.

 

This is the output from the client :

  1 new calls during 0.081 s period      7 ms scheduler resolution

  6 concurrent calls (limit 27)          Peak was 6 calls, after 6 s

  0 out-of-call msg (discarded)       

  1 open sockets                       

  520 Total RTP pckts sent               62.018 last period RTP rate (kB/s)

 

The server has the following :

  1 new calls during 3.659 s period      19 ms scheduler resolution

  0 concurrent calls                     Peak was 0 calls, after 0 s

  1 open sockets                       

  0 Total echo RTP pckts 1st stream      0.000 last period RTP rate (kB/s)

  0 Total echo RTP pckts 2nd stream      0.000 last period RTP rate (kB/s)

 

It just seems that no packets are getting echoed. Does echo need to be started on both sides, do I need to add –rtp_echo onto the client command line too?

 

I don’t know if this helps, but my overall goal is to create a rtp stream/session so that I can measure the jitter on the packets, would this even be possible like this?

 

Regards

/Cole

 


From: Olivier Jacques [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 18, 2006 9:42 PM
To: [EMAIL PROTECTED]
Cc: [email protected]
Subject: Re: [Sipp-users] Rtp Echo Problems

 

Hello,

could you provide the changes you made to have SIPp compile on FreeBSD? Others might find that useful.

For your problem, rtp_echo is not enabled as it should read "Total echo RTP pckts 1st stream xxx" (echo), not "RTP pckts sent" (pcap play).
Could you try adding on the _uac_pcap client "-mi 192.168.0.2"? That might help.

Olivier.

On 10/18/06, Cole <[EMAIL PROTECTED]> wrote:

Hi.

Ive just built sipp on FreeBSD 4.11 to play the pcap files. I built it with
"make pcapplay", and fixed all the compile errors and got it working 100%.

Now im having problems with the rtp_echo option. Im running the server with
"./sipp -rtp_echo -mp 6000 -i 192.168.0.1 -sn uas", then on the client im
running "./sipp -i 192.168.0.2 -r 1 -sn uac_pcap 192.168.0.1".

Now, in the server, it says 0 pkts replayed, and ive checked with tcpdump to
check that the packets are being sent to the server on port 6000. Nothing
however is getting replayed. Is there something im doing wrong or some other
options I need to add in order for this to work?

Thanks for any help.
/Cole


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