Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 2278 by [email protected]: the "branch" parameter in Via
header duplicated in different SIP transaction
http://code.google.com/p/mobicents/issues/detail?id=2278
What steps will reproduce the problem?
1.When receiving a http request, run a B2BUA between user A and user B,
send a SIP Invite from the http servlet to user A (without sdp part)
2.When receiving the 200ok from user A, send a new Invite to user B with
the sdp of user A.
3.When receiving the 200ok from user B, send back a Ack to user B and send
back a Ack with the sdp of user B to user A.
4.sometimes, when the sip server try to send the Invite packet to user B,
the "javax.sip.TransactionUnavailableException: Transaction already
exists!" error occurs.
What is the expected output? What do you see instead?
The branch parameter should be unique in each transactions.
What version of the product are you using? On what operating system?
OS-System: Linux 2.6.32-gentoo-r7,i386
Java version: 1.6.0_22,Sun Microsystems Inc.
VM arguments: -Dprogram.name=run.sh -Xms1700m -Xmx1700m
-XX:MaxPermSize=256m -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode
-XX:NewRatio=3 -Dorg.jboss.resolver.warning=true
-Dsun.rmi.dgc.client.gcInterval=3600000
-Dsun.rmi.dgc.server.gcInterval=3600000 -Djava.net.preferIPv4Stack=true
-Djava.endorsed.dirs=/opt/mss-1.6.0-SNAPSHOT-jboss-jdk6-5.1.0.GA/lib/endorsed
mss-1.6.0-SNAPSHOT-jboss-jdk6-5.1.0.GA-1101150413-LGPL.zip
Release ID: (Mobicents) Sip Servlets 1.6.0-SNAPSHOT (build: SVNTag=r16564
date=${maven.build.timestamp})
Please provide any additional information below.
This problem seems not to happen in MSS-1.4.0 final, but it happens in
MSS-1.5.0 and MSS-1.6.0-SNAPSHOT.
maybe two Invite is created in the same time, the branch id would be the
same?
The attachment files contains tcpdump files and log files.
the tcpdump files can be view via wireshark, and set the filter expression
to "sip contains [branch_id]", e.g. "sip contains
z9hG4bKc023710c-6400-4188-bd7a-b07dbb7d109f_d1bcdd12_6466491921738014".
Attachments:
transaction_exist_03.txt 59.6 KB
transaction_exist_03.pcap 191 KB
transaction_exist_02.pcap 142 KB
transaction_exist_02.txt 43.7 KB
