Hi,
For modular firewalls, the MIB OID nodes of the CPU and memory are composed of OIDs and indexes, and the index values are fixed. Therefore, you need to confirm the index of each board and use the entPhysicalName node to read the index of each board.

As shown in the preceding figure, the first eight digits of each board correspond to the board index. Based on the OIDs of the CPU and memory and the board index obtained in the previous step, you can obtain the memory and CPU information of the corresponding board, as shown in the following figure.

The OID of the CPU usage is 1.3.6.1.4.1.2011.6.122.15.2.1.6.
The OID of the memory usage is 1.3.6.1.4.1.2011.5.25.31.1.1.1.1.7.
Glad to help you! Any further questions, let us know.