The UID SNMPv2-MIB::healthDeviceInfo.healthDeviceCpuLatest (1.2.1.16.1.1.1.13) could be used to get the latest cpu usage from older switches. The OS6900 don't support this UID (the whole healtDeviceInfo tree). Is there an equivalent UID which can be used to get the latest cpu usage and in case there is what's the UID?
Within all the cli guide you will find at every command the correct MIB object.
in this cas you are looking for healthModuleCpuLatest (the same for all R8 switches).
To get the oid use this command: