PH49906: LB'S PROMISCOUS SETTING IS NOT HONORED WHEN CONFIGURED IN LBEXECUTOR.CONF

APAR status

• Closed as program error.

Error description

• On AIX, users can set LB_PROMISCOUS in lbexecutor.conf to
  prevent fix pack overwrites. The value is not set correct when
  read by the load balancer.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM WebSphere Application Server Load       *
  *                  Balancer for IPv4 and IPv6 users on AIX     *
  ****************************************************************
  * PROBLEM DESCRIPTION: The Load Balancer does not process      *
  *                      the promiscuous mode setting in         *
  *                      lbexecutor.conf file                    *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  On AIX, the Load Balancer must be configured as promiscuous
  for certain adapter cards or to run network trace tools
  concurrently with the Load Balancer.
  The promiscuous mode can be set by modifying the
  lbexecutor.AIX file but this setting is overwritten when
  fixpacks are applied. The recommended configuration is to add
  the modification to lbexecutor.conf which is not overwritten
  when service is applied.
  The LB_PROMISCUOUS (or LB_PROMISCOUS) value is read from the
  lbexecutor.conf file after it is used by the Load Balancer so
  it has no effect.
  Additional information about this setting:
  https://www.ibm.com/support/pages/network-trace-compatibility-
  is
  sues-load-balancer-ipv4-and-ipv6
  https://www.ibm.com/support/pages/apar/PH16674
  

Problem conclusion

• Modifyied the processing order so that the setting is read
  from lbexecutor.conf before the option is applied by the Load
  Balancer.
  
  Fix levels:
     8.5.5.23
     9.0.5.14
  

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

  WS EDGE LB IPV4

• Fixed component ID

  5724H8812

Applicable component levels