Re: did anyone face this problem !!!

slim bens wrote:

> ello everyone,
> I am developping a P2P application using Jain-Sip for communication.
> I'm pretty sutck with a problem , here it is :
>
> we have 3 nodes : A.B,C
>
> B has information (URL of C) to ping  the node C,
> and node C receive the request and sends a response to B. ('til now 
> it's ok).
>
> But now, the node A sends a request to B ,
> B receives the request, and before sending a response to A,
> B needs to ping C ,
> then C receives the request and sends a response to B,
> but the PROBLEM !!! is that B doesn't  receive the response from C.
>
> notice : the thread triggered in B by receiving the reuqest from A, is 
> blocked,
>            waiting for the response from C.


To abstract the problem better, please post a small code snippet to 
reproduce the problem in small example that looks like 
examples/simplecallsetup.The Requests and Responses look OKto me but the 
Tag in the 200 OK is suspect because MESSAGE does not create a Dialog . 
Thats the only thing I can think of  at the moment. Have you created a 
dialog and are you sending the MESSAGE within that Dialog?

>
> if any one has face the same, I would be very thankful if he could 
> send me the solution.
>
> -----------------------------------here are the request 
> ----------------------------------------------------
>
> A sends to B :
>
> REGISTER sip:[email protected]:7001;transport=tcp SIP/2.0
> Call-ID: [email protected]
> CSeq: 1 REGISTER
> From: <sip:[email protected]:7008;transport=tcp>;tag=6479
> To: <sip:[email protected]:7008;transport=tcp>
> Via: SIP/2.0/TCP 
> 127.0.0.1:7008;branch=z9hG4bK4f67136d36f023c9d805912383903d60
> Max-Forwards: 6
> Contact: <sip:[email protected]:7008;transport=tcp>
> Expires: 800
> Require: DHT
> Supported: DHT
> Content-Type: application/DHT+XML
> Content-Length: 254
>
> <?xml version="1.0" 
> encoding="UTF-8"?><DHTInfo><DHTDescription><DHTOverlayName>Concordia 
> DHT</DHTOverlayName><DHTHashAlg>SHA-1</DHTHashAlg></DHTDescription><DHTOperation>nodeRegistration</DHTOperation><DHTNode>sip:[email protected]:7008</DHTNode></DHTInfo> 
>
>
>
>
> ******************************************************************
>
> B receives from A :
>
> REGISTER sip:[email protected]:7001;transport=tcp SIP/2.0
> Call-ID: [email protected]
> CSeq: 1 REGISTER
> From: <sip:[email protected]:7008;transport=tcp>;tag=6479
> To: <sip:[email protected]:7008;transport=tcp>
> Via: SIP/2.0/TCP 
> 127.0.0.1:7008;branch=z9hG4bK4f67136d36f023c9d805912383903d60;rport=7008
> Max-Forwards: 6
> Contact: <sip:[email protected]:7008;transport=tcp>
> Expires: 800
> Require: DHT
> Supported: DHT
> Content-Type: application/DHT+XML
> Content-Length: 254
>
> <?xml version="1.0" 
> encoding="UTF-8"?><DHTInfo><DHTDescription><DHTOverlayName>Concordia 
> DHT</DHTOverlayName><DHTHashAlg>SHA-1</DHTHashAlg></DHTDescription><DHTOperation>nodeRegistration</DHTOperation><DHTNode>sip:[email protected]:7008</DHTNode></DHTInfo> 
>
>
>
>
>
> **********************************************************
>
> ......... then during the process of the response to A ........
>
> B sends to C :
>
> MESSAGE sip:[email protected]:7014;transport=tcp SIP/2.0
> Call-ID: [email protected]
> CSeq: 1 MESSAGE
> From: <sip:[email protected]:7001;transport=tcp>;tag=8073
> To: <sip:[email protected]:7014;transport=tcp>
> Via: SIP/2.0/TCP 
> 127.0.0.1:7001;branch=z9hG4bKb8d8a56120b598e6f33550fdf21f3b07
> Max-Forwards: 6
> Contact: <sip:[email protected]:7001;transport=tcp>
> Expires: 800
> Content-Type: text/plain;charset=UTF-8
> Content-Length: 4
>
> PING
>
>
>
> ************************************************************
>
> C receives from B :
>
> MESSAGE sip:[email protected]:7014;transport=tcp SIP/2.0
> Call-ID: [email protected]
> CSeq: 1 MESSAGE
> From: <sip:[email protected]:7001;transport=tcp>;tag=8073
> To: <sip:[email protected]:7014;transport=tcp>
> Via: SIP/2.0/TCP 
> 127.0.0.1:7001;branch=z9hG4bKb8d8a56120b598e6f33550fdf21f3b07;rport=7001
> Max-Forwards: 6
> Contact: <sip:[email protected]:7001;transport=tcp>
> Expires: 800
> Content-Type: text/plain;charset=UTF-8
> Content-Length: 4
>
> PING
>
> ******************************************************************
>
> C reply to B :
>
> SIP/2.0 200 OK
> Call-ID: [email protected]
> CSeq: 1 MESSAGE
> From: <sip:[email protected]:7001;transport=tcp>;tag=8073
> To: <sip:[email protected]:7014;transport=tcp>;tag=6300
> Via: SIP/2.0/TCP 
> 127.0.0.1:7001;branch=z9hG4bKb8d8a56120b598e6f33550fdf21f3b07;rport=7001
> Content-Type: text/plain;charset=UTF-8
> Content-Length: 4
>
> PING
>
> ----------------------------------------------------------------------
>
> B doesn't receive the response from C :  <------------------- PROBLEM 
> !!!!
>
> _________________________________________________________________
> Achetez ce que vous voulez, quand vous voulez sur Sympatico / MSN 
> Magasiner 
> http://magasiner.sympatico.msn.ca/content/shp/?ctId=101,ptnrid=176,ptnrdata=081805 
>
>
> _______________________________________________
> nist-sip mailing list
> [email protected]
> http://www-x.antd.nist.gov/mailman/listinfo/nist-sip
>


-- 
M. Ranganathan 

Advanced Networking Technologies Division,
National Institute of Standards and Technology (NIST),
100 Bureau Drive, Stop 8920, Gaithersburg, MD 20899. 
tel:301 975 3664 , fax:301 590 0932 http://w3.antd.nist.gov/
Advanced Networking Technologies For the People!