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PM72839: CALLING PARTY REJECTS REINVITE BEFORE RECEIVES ACK FROM PRIOR INVITE.

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Session Initiation Protocol (SIP) call flow with REINVITE and
    the Calling Party rejects reINVITE before receiving ACK from
    prior INVITE, the wrong CSEQs get used.
    

Local fix

  • Local Fix￘
    N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All IBM WebSphere Application Server V8.0   *
    *                  and V8.5 Session Initiation Protocol (SIP)  *
    *                  Container users.                            *
    ****************************************************************
    * PROBLEM DESCRIPTION: Wrong ACK CSEQ on delayed retransmit    *
    *                      of 200 response                         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    SIP Container used a cache mechanism over retransmiting of ACK
    messages. In case of  dealyed response, the Container sends the
    last ACK message.
    

Problem conclusion

  • In case of restransmition by reinvite we should check whether
    the ACK is still relevant to the current response.The cause of
    the cached ACK request is for the previous final invite
    respose.
    
    The fix for this APAR is currently targeted for inclusion in
    fix packs 8.0.0.6 and 8.5.0.2.  Please refer to the Recommended
    Updates page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM72839

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-09-13

  • Closed date

    2012-10-08

  • Last modified date

    2012-10-08

  • APAR is sysrouted FROM one or more of the following:

    PM71821

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

  • R800 PSY

       UP

  • R850 PSY

       UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
29 October 2021