IC85605: INSTANCES IBM PERSONAL COMMUNICATIONS HAS A DELAY OF 30 SECONDS BEFORE GETTING A SESSION WITH THE MAINFRAME LPAR.

Personal Communications 6.0.6

APAR status

• Closed as program error.

Error description

• Error Description￘
  In some instances IBM Personal Communications has a delay of 30
  seconds before getting a session with the desired Mainframe
  LPAR. Packet traces show twenty failed ('UNREACHABLE') NBSTAT
  name look ups occured (over 30 seconds in total) before the SYN
  was sent. Once the SYN is sent the connection is quickly
  established.
  

Local fix

• Local Fix￘
  None.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users connecting to host configured behind   *
  *                 a NAT                                        *
  ****************************************************************
  * PROBLEM DESCRIPTION: PCOM has a delay of 30 seconds before   *
  *                      establishing a session to the           *
  *                      configured host.                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  User was seeing a delay of 30 seconds before establishing a
  session with the desired host. Packet traces showed twenty
  failed ('UNREACHABLE') NBSTAT name look-ups occured (over 30
  seconds in total) before the SYN was sent. Once the SYN is
  sent the connection is quickly established.
  
  getnameinfo() Windows function call shows this delay if NETBIOS
  discovery is enabled.
  

Problem conclusion

• PCSTLNET.DLL was changed to use gethostbyaddr() function call
  instead of getnameinfo() function call.
  
  Fix schedulted for PCOM 6.0.6 Refresh Pack
  

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

  PCOMM V5 COMBO-

• Fixed component ID

  5639I7000

Applicable component levels

• R601 PSY

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