PM94876: FORMATTED PACKET TRACE (SYSTCPDA) SHOWS SOME PACKETS DROPPED BUT SUBSEQUENT PACKETS WERE INCORRECTLY MARKED OUT-OF-ORDER

APAR status

• Closed as fixed if next.

Error description

• A formatted TCPIP packet trace (SYSTCPDA CTRACE) that has some
  packets being dropped shows subsequent packets were incorrectly
  marked out-of-order. The highest sequence number was the last
  next sequence but was not really the highest.
  

Local fix

• None
  KEYWORDS:
  TCPIP PACKET TRACE FORMATTER SYSTCPDA CTRACE OOO OUT-OF-ORDER
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of the IBM Communications Server   *
  *                 for z/OS Version 1 Release(s) 13: SYSTCPDA   *
  ****************************************************************
  * PROBLEM DESCRIPTION: While processing SYSTCPDA trace records *
  *                      for the OPTIONS(( SESSION )) packets    *
  *                      are incorrectly marked as out of order. *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The packet trace formatter will be amended to update the correct
  value of the highest next sequence number value.
  +-------------------------------------------------------------+
  + Please check our Communications Server for OS/390 homepages +
  + for common networking tips and fixes.  The URL for these    +
  + homepages can be found in Informational APAR II11334.       +
  +-------------------------------------------------------------+
  

Problem conclusion

Temporary fix

Comments

• The solution for this APAR is included in CS for zOS Version 2
  Release 2.
  

APAR Information

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

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

Fix information

Applicable component levels

• R1D0 PSN

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