Hi Antoine, I think that you answered your question yourself ;-) In UDP mode, IMS Bench SIPp does not use the "UDP mono socket" mode, even if "-t u1" is specified. Instead, IMS Bench SIPp will open one socket for each user, which means you can have up to about 40000 users per SIPp instance. If you need more users, then you need to run several SIPp instances, possibly on the same machine using several IP addresses assigned to virtual interfaces (eth0:0, eth0:1...). Each SIPp instance needs to be assigned its own IP address.
This is briefly documented at http://sipp.sourceforge.net/ims_bench/intro.html#New+Features+and+Changes+to+SIPp One UDP port per User: In order to be as realistic as possible, each user is associated with its own IP address + UDP port combination. Default operation uses a single IP address. One can then run multiple SIPp instances on the same system, each running on a different (real or virtual) IP address. And at http://sipp.sourceforge.net/ims_bench/reference.html#UDP+one+socket+per+user UDP one socket per user In UDP "one socket per user" mode, each user that a SIPp instance represents corresponds to a separate UDP port that SIPp uses for the traffic belonging to that user. All users however share a single IP address. In TCP mode, all users share a single pair of sockets per SIPp instance. Regards, Patrice -----Original Message----- From: Antoine Roly [mailto:antoine.r...@gmail.com] Sent: Tuesday, June 01, 2010 2:11 PM To: sipp-users@lists.sourceforge.net Subject: [Sipp-users] sipp ims bench udp mono socket Hi, Does anyone know if the UDP mono socket transport mode is available in SIPp Ims Bench? I'd like to run some tests using UDP and sailfin. Using TCP, it works (the sipp instance is launched with the -t t1 option, for mono socket using TCP) but when I try to launch a test with UDP (adding the -t u1 option in the sipp command line) it stops directly with the message "UDP port over 52000 !, errno = 98 (Address already in use)." It seems to me SIPp tries to open a socket per user (despite the given option), but with 800 000 users registered, it can't work... Regards, A. ------------------------------------------------------------------------------ _______________________________________________ Sipp-users mailing list Sipp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sipp-users --------------------------------------------------------------------- Intel Corporation NV/SA Rond point Schuman 6, B-1040 Brussels RPM (Bruxelles) 0415.497.718. Citibank, Brussels, account 570/1031255/09 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. ------------------------------------------------------------------------------ _______________________________________________ Sipp-users mailing list Sipp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sipp-users
