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IBM WebSphere Load Balancer required adapter interface options

Troubleshooting


Problem

For best performance, the Load Balancer requires certain Ethernet interfaces offload features to be disabled. The IBM WebSphere Load Balancer does not support these functions that modify the contents of cluster traffic. Packets that do not conform to the standard IP protocol are discarded by the Load Balancer.

Symptom

Clients experience a noticeable performance delay or failed requests.
When a response is not received for a packet, the sending workstation retransmits the packet. After several failed attempts, most software disables the offload feature for the failing packet. The packet is successfully received when the offload feature is disabled.

[{"Type":"MASTER","Line of Business":{"code":"LOB77","label":"Automation Platform"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"ARM Category":[{"code":"a8m50000000CdIqAAK","label":"IBM Edge Load Balancer"}],"ARM Case Number":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}],"Version":"8.5.0;8.5.5;9.0.0;9.0.5"}]

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Document Information

Modified date:
03 March 2025

UID

swg21285822