NEC N8406-022 - Manual (Page 60)

(English)
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Network adapter Teaming feature of the CPU Blade does not work.
1. When using the Teaming feature with this Switch Module, the available Teams are "Adapter Fault
Tolerance" (AFT) and "Adaptive Load Balancing" (ALB). Make sure the teaming configuration.
2. When using "Adapter Fault Tolerance" (AFT), do not use Spanning Tree Protocol.