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For Cisco routers, it is very handy to monitor CPU load, it is an excellent metric for how the device is performing, however on some newer Cisco devices, the processing is distributed and performed in hardware, so the CPU load is still handy but it may not be providing the information you need.

Verify the MIB Operation

Now you know what you want to collect and monitor, verify that the MIB operates the way the documentation says it does and verify that it works they way you think it does.

Techniques for Modelling

Now you know what you want to model, you will need to decide to use the system or systemHealth techniques for having NMIS collect and store the data, you will also want to decide if you want any custom alarms configured.