APAR status
Closed as program error.
Error description
As stale ARP cache not allowing network switch to learn the new MAC address after LPAR migration, customer will experience increase in overall LKU time.
Local fix
Problem summary
As stale ARP cache not allowing network switch to learn the new MAC address after LPAR migration, customer will experience increase in overall LKU time.
Problem conclusion
Proactively refresh ARP cache and send active ARP requests to PowerVC server before attempting token initialization. This ensures network switches learn the new MAC address after LPAR migration, preventing connection failures due to stale ARP caches.
Temporary fix
Comments
APAR Information
APAR number
IJ58289
Reported component name
AIX V7.3
Reported component ID
5765CD300
Reported release
730
Status
CLOSED PER
HIPER
NoHIPER
Submitted date
2026-05-12
Closed date
2026-05-12
Last modified date
2026-05-12
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
AIX V7.3
Fixed component ID
5765CD300
Applicable component levels
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SG11T","label":"AIX 7.3 HIPERS- APARs and Fixes"},"Platform":[{"code":"PF053","label":"Power Systems"}],"Version":"730","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]
Document Information
Modified date:
12 May 2026