PM52508: 503 RECEIVED TO INVITE THAT WAS PROXIED

8.0.0.3: WebSphere Application Server V8.0 Fix Pack 3
8.0.0.4: WebSphere Application Server V8.0 Fix Pack 4
8.0.0.5: WebSphere Application Server V8.0 Fix Pack 5
8.0.0.6: WebSphere Application Server V8.0 Fix Pack 6
8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15

APAR status

• Closed as program error.

Error description

• An INVITE is resent to the application after it has been proxied
  and a 503 has been received.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All Session Initiation Protocol (SIP)       *
  *                  container users of IBM WebSphere            *
  *                  Application Server V8.0                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: An INVITE is resent to the              *
  *                      application after it has been proxied   *
  *                      and a 503 has been received.            *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When NPTR automatic DNS name resolving is enabled and
  application composition occurs the SIP container can resend
  the Invite message if 503 is received.
  

Problem conclusion

• Whenever automatic DNS resolving is enabled and there is
  application composition, the internal application is not
  trying to do automatic DNS resolving.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.0.0.3.  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 is sysrouted FROM one or more of the following:

• 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