DY47013: SESSIONS FAIL WITH 08970007 WHEN USING VRTG.

Obtain the fix for this APAR

APAR status

• Closed as program error.

Error description

• The CDRM name can change in a predefined CDRSC that has
  CDRMNAME coded when VRTG is used in this same host. Sessions can
  fail with 08970007 . You can also see sense code 08970012 if
  VFYOWNER=YES is also coded on the predefined CDRSC when VRTG is
  used as well.
  

Local fix

• Establish sessions without using the VRTG path.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All who use APPN and Virtual Route TGs *
  * (VRTGs). *
  ****************************************************************
  * PROBLEM DESCRIPTION: Sessions fail with sense x'08970007'. *
  * Sessions can also fail with sense *
  * x'08970012' if VFYOWNER=YES is coded *
  * on CDRSCs. *
  ****************************************************************
  * RECOMMENDATION: *
  ****************************************************************
  The problem was recreated using the following configuration:
  
  SLU PLU
  SSCPAA--(appn)--SSCP1A==(vrtg)==SSCP2A
  EN ICN ICN
  
  The problem can be summarized as follows:
  
  1. The PLU application (on SSCP2A) is predefined as a CDRSC on
  SSCP1A with CDRM=SSCP2A specified.
  2. The SLU (on SSCPAA) initiates a session to the PLU. The
  search is sent through APPN all the way to host SSCP2A.
  The computed RSCV is: SSCP2A==vrtg==SSCP1A--appn--SSCPAA
  3. Because the VRTG is not HPR-capable, SSCP2A sends CDINIT(5)
  to SSCP1A to obtain a subarea network address for the SLU.
  The PLU owning CDRM name is not included on the CDINIT(5)
  because the true owning CDRM is not always known.
  4. When the CDINIT(5) arrives at SSCP1A without an owning
  CDRM name, SSCP1A incorrectly updates the predefined
  CDRSC for the PLU application with SSCP1A's CDRM name.
  5. Subsequent session initiation attempts to (or from) the PLU
  application sent through SSCP1A fail with sense 08970007
  (or 08970012).
  

Problem conclusion

• There is logic in ISTSSCEI that avoids updating the predefined
  owning CDRM name for CDRSCs that represent resources that can
  be found in or through the APPN network. However, this logic
  does not correctly handle the case where the session control
  block (SIB) is created as a result of receiving a CDINIT(5) RU
  for a session over a VRTG. This logic in ISTSSCEI is updated
  to handle the VRTG case correctly.
  

Temporary fix

Comments

APAR Information

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

  OA25084

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

  UD53459

Fix information

• Fixed component name

  VTAM V4 VSE/ESA

• Fixed component ID

  568606501

Applicable component levels

• RFE6 PSY UD53459

     UP09/03/10 P E421

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.