Dear Alessio Botta,
Many thanks for your fast reply.
In a first approach I have setup a more complex scenario of tests, but
now I'm trying to using D-ITG just between two directly connected
machines. It's easier to debug.
Currently, I'm using the following software:
- ubuntu server - 2.6.27-9-server
- D-ITG-2.7.0-Beta (Due to the problems compiling D-ITG-2.6.1d with g++ 4.3.2)
- g++ 4.3.2
To make the D-ITG with DCCP support, I used your make file:
make clean
make all dccp=on
So, in the Sender machine I'm running:
$PATH_DITG/ITGSend $SCRIPT_IN -l $DIR_RES/$snd_log -x $DIR_RES/$rcv_log -L
$LOG_SERVER_SND
Where $SCRIPT_IN is, for example, a file containing these lines:
-T DCCP -m rttm -a 172.0.0.2 -t 60000 -rp 6000 VoIP -x G.711.1 -h RTP
-T DCCP -m rttm -a 172.0.0.2 -t 60000 -rp 6001 VoIP -x G.711.1 -h RTP
-T DCCP -m rttm -a 172.0.0.2 -t 60000 -rp 6002 VoIP -x G.711.1 -h RTP
-T DCCP -m rttm -a 172.0.0.2 -t 60000 -rp 6003 VoIP -x G.711.1 -h RTP
-T DCCP -m rttm -a 172.0.0.2 -t 60000 -rp 6004 VoIP -x G.711.1 -h RTP
At the Receiver side, I'm doing this:
$PATH_DITG/ITGRecv > res_server.log
Obviously, in both cases I'm running ITGLog.
Do you need for information?
--
Best Regards,
Vitor Bernardo
Quoting Alessio Botta <a.botta@xxxxxxxx>:
Dear Vítor Bernardo,
my name is Alessio Botta and I am one of the developers of D-ITG.
I just made a test with Ubuntu Server / 2.6.27-9-server and DCCP
CCID 3. I got no segmentation faults.
Could you please provide us more information regarding your tests ?
In order to reproduce the error we would need to know the
versions of D-ITG and g++, as well as the commands you used to
compile and run D-ITG.
Best regards and Happy Holidays.
AB
Vitor Bernardo ha scritto:
Hi all,
I'm using DCCP in my MsC thesis in order to evaluate the it
performance to delivery some kind of application, such as VoIP. At
this moment, I'm doing a testbed evaluation of DCCP and I'm having
some problems.
To perform these tests I'm using D-ITG traffic generator in a Linux
machines running Ubuntu Server / 2.6.27-9-server. As you should
know, by default the Linux implementation of DCCP uses CCID2. With
CCID2 I have no problems and I can run the tests, but when I
configure the machines to use CCID3, I got some segmentation faults.
In attach you can found a trace of error.
I don't know it is a configuration problem due to my knowledge about
DCCP. To enable DCCP with CCID3, I'm doing the following:
modprobe dccp
modprobe dccp_ccid3
sysctl -w net.dccp.default.seq_window=10000
sysctl -w net.dccp.default.rx_ccid=3
sysctl -w net.dccp.default.tx_ccid=3
Does anyone can help me? Has anyone used the DCCP CCID3 with the
D-ITG before?
Thanks in advance.
--
Best regards,
Vítor Bernardo
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Alessio Botta, PhD Student
Dipartimento di Informatica e Sistemistica
Università degli Studi di Napoli Federico II
Via Claudio 21 -- 80125 Napoli (Italy)
Phone: +390817683821 - Fax: +390817683816
Email: a.botta@xxxxxxxx
alessio.botta@xxxxxxxxxxxxxxxxx
WWW: http://wpage.unina.it/a.botta
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