Hi all,
I have tested SIPp client to connect IMS, But im my scenario, it has worked
but client and server continue to transfer messages 200 OK SDP and ACK.
I don't find the reason .
                                  Messages  Retrans   Timeout
Unexpected-Msg
    REGISTER ---------->         1         0         0
         401 <----------         1         0         0         0
    REGISTER ---------->         1         0         0
         200 <----------         1         0         0         0
       Pause [    500ms]         1                             0

      INVITE ---------->         1         0         0
         100 <----------         1         0         0         0
         180 <----------         1         0         0         0
         403 <----------         0         0         0         0
         404 <----------         0         0         0         0
         408 <----------         0         0         0         0
         200 <----------         1         9         0         0
         ACK ---------->         1         9

       Pause [    500ms]         1                             0

              [ NOP ]
       Pause [    30.0s]         1                             0

    REGISTER ---------->         1         0         0
         401 <----------         1         0         0         0
    REGISTER ---------->         1         0         0
         200 <----------         1         0         0         0
         BYE <----------         1         0         0         0
         200 ---------->         1         0         0


This is my scenario :
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE scenario SYSTEM "sipp.dtd">

<scenario name="Session for conference">
    <send retrans="500">
        <![CDATA[
        REGISTER sip:[field2] SIP/2.0
        Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
        Max-Forwards: 20
        From: "[field0]" <sip:[fiel...@[field2]>;tag=[call_number]
        To: "[field0]" <sip:[fiel...@[field2]>
        P-Access-Network-Info:
3GPP-UTRAN-TDD;utran-cell-id-3gpp=C359A3913B20E
        Call-ID: [call_id]
        CSeq: 1 REGISTER
        Contact: <sip:[fiel...@[local_ip]:[local_port]>
        Expires: 7200
        Content-Length: [len]
        User-Agent: Sipp v1.1-TLS, version 20061124
        Authorization: Digest username="[fiel...@[field2]", realm="[field2]"
        Supported: path
        ]]>
    </send>

    <recv response="401" auth="true">
    </recv>

    <send retrans="500">
        <![CDATA[
        REGISTER sip:[field2] SIP/2.0
        Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
        Route: [$1]
        Max-Forwards: 20
        From: "[field0]" <sip:[fiel...@[field2]>;tag=[call_number]
        To: "[field0]" <sip:[fiel...@[field2]>
        P-Access-Network-Info:
3GPP-UTRAN-TDD;utran-cell-id-3gpp=C359A3913B20E
        Call-ID: [call_id]
        CSeq: 2 REGISTER
        Contact: <sip:[fiel...@[local_ip]:[local_port]>
        Expires: 7200
        Content-Length: 0
        User-Agent: Sipp v1.1-TLS, version 20061124
        [field3]
        Supported: path
        ]]>
    </send>

    <recv response="200">
        <action>
            <ereg regexp=".*" search_in="hdr" header="Service-Route:"
assign_to="1" />
        </action>

    </recv>

    <pause milliseconds="500" crlf="true" />

    <send retrans="500">
        <![CDATA[
            INVITE sip:sip-servlets-confere...@[remote_ip]:5080 SIP/2.0
            Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
            Max-Forwards: 20
            Route: <sip:pcscf.open-ims.test:4060;lr>,[$1]
            P-Preferred-Identity: <sip:[fiel...@[field2]>
            Privacy: none
            P-Access-Network-Info:
3GPP-UTRAN-TDD;utran-cell-id-3gpp=C359A3913B20E
            From: <sip:[fiel...@[field2]>;tag=[call_number]
            To: <sip:[servi...@[remote_ip]:[remote_port]>
            Call-ID: [call_id]
            CSeq: [cseq] INVITE
            Contact: <sip:[fiel...@[local_ip]:[local_port]>
            Expires: 7200
            User-Agent: Sipp v1.1-TLS, version 20061124
            Allow: ACK, BYE, CANCEL, INVITE, REFER, OPTIONS, INFO, REGISTER,
NOTIFY, UPDATE, SUBSCRIBE, PRACK
            Content-Type: application/sdp
            Content-Length: [len]

            v=0
            o=- 3487063231 3487063231 IN IP[local_ip_type] [local_ip]
            s=SJphone
            c=IN IP[media_ip_type] [media_ip]
            t=0 0
            a=direction:active
            m=audio [auto_media_port] RTP/AVP 0 8
            a=rtpmap:0 PCMU/8000
            a=rtpmap:8 PCMA/8000
            a=sendrecv
        ]]>
    </send>

    <recv response="100" optional="true">
    </recv>

    <recv response="180" optional="true">
    </recv>

    <recv response="403" optional="true" next="1">
    </recv>

    <recv response="404" optional="true" next="1">
    </recv>

    <recv response="408" optional="true" next="1">

    </recv>

    <recv response="200" rrs="true">
    </recv>

    <send crlf="true" >
        <![CDATA[
            ACK [next_url] SIP/2.0
            [last_Via:]
            Max-Forwards: 20
            [routes]
            From: <sip:[fiel...@open-ims.test>;tag=[call_number]
            To: <sip:[servi...@[remote_ip]:5080>
            Call-ID: [call_id]
            CSeq: [cseq] ACK
            Content-Length: 0
        ]]>
    </send>

<!-- Play a pre-recorded PCAP file (RTP stream)                       -->
    <pause milliseconds="500" crlf="true" />
     <nop>
          <action>
            <exec play_pcap_audio="8Khz.pcap"/>
        </action>
    </nop>

    <pause milliseconds="30000" crlf="true" />


    <send retrans="500">
        <![CDATA[
        REGISTER sip:[field2] SIP/2.0
        Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
        Max-Forwards: 20
        From: "[field0]" <sip:[fiel...@[field2]>;tag=[call_number]
        To: "[field0]" <sip:[fiel...@[field2]>
        P-Access-Network-Info:
3GPP-UTRAN-TDD;utran-cell-id-3gpp=C359A3913B20E
        Call-ID: [call_id]
        CSeq: 3 REGISTER
        Contact: <sip:[fiel...@[local_ip]:[local_port]>
        Expires: 0
        Content-Length: 0
        User-Agent: Sipp v1.1-TLS, version 20061124
        Authorization: Digest username="[fiel...@[field2]", realm="[field2]"
        Supported: path
        ]]>
    </send>

    <recv response="401" auth="true">
    </recv>


    <send retrans="500">
        <![CDATA[
        REGISTER sip:[field2] SIP/2.0
        Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
        Route: [$1]
        Max-Forwards: 20
        From: "[field0]" <sip:[fiel...@[field2]>;tag=[call_number]
        To: "[field0]" <sip:[fiel...@[field2]>
        P-Access-Network-Info:
3GPP-UTRAN-TDD;utran-cell-id-3gpp=C359A3913B20E
        Call-ID: [call_id]
        CSeq: 4 REGISTER
        Contact: <sip:[fiel...@[local_ip]:[local_port]>
        Expires: 0
        Content-Length: 0
        User-Agent: Sipp v1.1-TLS, version 20061124
        [field3]
        Supported: path
        ]]>
    </send>

    <recv response="200" >
    </recv>
    <recv request="BYE">
    </recv>

    <send retrans="500" crlf="true">
         <![CDATA[
                    SIP/2.0 200 OK
            [last_Via:]
            [last_From:]
            [last_To:]
            [last_Call-ID:]
            [last_CSeq:]
            Contact: <sip:[local_ip]:[local_port];transport=[transport]>
            Content-Length: 0
             ]]>
    </send>

    <label id="1"/>
    <label id="2"/>

    <!-- definition of the response time repartition table (unit is ms)
-->
<!--    <ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/>
-->

    <!-- definition of the call length repartition table (unit is ms)
-->
<!--    <CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/>
-->

</scenario>

Thank in advanced for all helps!
B.R
T.Q.Tuan
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