IT03080: IPV6 SLAAC PROVISIONED REDUNDANT ROUTERS MIGHT NOT FAIL OVER AFTER REMOVAL OF CURRENT ROUTER FROM DATAPOWER APPLIANCE

Fix packs for DataPower Service Gateway version 7.0
Fix packs for DataPower B2B Appliance version 7.0
Fix packs for DataPower Integration Appliance version 7.0

APAR status

• Closed as program error.

Error description

• When IPv6 SLAAC is used to provision redundant routers in a
  DataPower appliance, if the currently preferred router fails,
  the DataPower appliance will not switch to the backup router
  until the provisioned route lifetime expires.  The DataPower
  appliance is not failing over to the backup router when the
  preferred router fails neighbor discovery and is removed from
  neighbor cache.  The fail over does occur when the preferred
  route's lifetime, as set During SLAAC provisioning, is reached.
  

Local fix

• Wait for the route lifetime to expire.
  

Problem summary

• Affected is DataPower appliance in IPv6 networks using RFC-2461
  Router Advertisement (RA) messages.
  
  In some cases, when the preferred router becomes unreachable,
  the firmware does not switch to the backup router, causing a
  temporary loss of connectivity.  This recovers after the timeout
  in RA message expires.
  

Problem conclusion

• Fix is available in 7.0.0.2.
  
  For a list of the latest fix packs available, please see:
  http://www-01.ibm.com/support/docview.wss?uid=swg21237631
  

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

  DATAPOWER

• Fixed component ID

  DP1234567

Applicable component levels

• R700 PSN

     UP