When upgrading from firmware 2.1.x to 2.2.2-2.2.7, IPMI 2.0 is reenabled and must be disabled again.
IPMI is enabled and disabled in the switch's Oracle ILOM CLI or Web interface. The instructions are provided in the Oracle Integrated Lights Out Manager (ILOM) 3.0 Supplement for the Sun Datacenter InfiniBand Switch 36 Firmware Version 2.1 guide, available at https://docs.oracle.com/cd/E76424_01/pdf/E36270.pdf: