Hello,
I'm trying to use sipp to run a stress test on a SIP ALG using sipp on both
the client and server side, with signalling and media traffic passing
through the ALG.
Here's the scenario I'm using:
- Simple Call Sequence with RTP stream from client
- RTP Echo enabled on the server side
- UDP multi-socket mode (-t un)
- Maximum of 10 simultaneous calls. (-l 10)
- Media ports/interfaces specified for both client and server (-mi and -mp)
i.e.
Client:
sipp -sf uac.xml -t un -l 10 -i <client ip> -mi <client ip> -mp
<client_port> <server ip>
Server:
sipp -sf uas.xml -t un -m 1000 -l 10 -i <server ip> -mp <server_port> -mi
<server_ip> -rtp_echo
What I'm curious about is the validity of multiple simultaneous calls using
the same media port. Is there a valid SIP scenario (say, for conference
calling) where two separate calls would actually advertise the same media
port?
I'm thinking that uac,xml and uas.xml should be incrementing the media_port
value with each unique call ID, since by specifying a new port for each
call with the -t un flag I am saying that each client is unique.
Thoughts?
Regards,
Rich
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