The ILOM interconnect is required for communication between the ldmd daemon and the service processor (SP) on SPARC T7 series servers and SPARC M7 series servers and should not be disabled. For more information, see the ilomconfig(1M) man page.
If an attempt to use the ldm command to manage domain configurations on SPARC T7 series servers and SPARC M7 series servers fails because of an error communicating with the SP, check the ILOM interconnect state and re-enable the ilomconfig-interconnect service if necessary. See How to Verify the ILOM Interconnect Configuration and How to Re-Enable the ILOM Interconnect Service.