Some of the IBM xseries servers , supports an inbuilt management port supported by a driver called "Integrated Management Module (IMM)". SNMP Traps may be configured for many pre-defined events which are defined in the Management Information Base (MIB) file which usually will be available in the IMM firmware file. One such MIB file for IBM Xseries 3650 M3 server is shared here which may be useful if you are integrating an IBM server with SNMP managers for monitoring/learning purposes. These may be also downloaded at IBM website.
imm.mib
immalert.mib
Hope it helps to some IBM SNMP enthusiasts