title: How does system fill MIB entries with Read-Only Access?
body: <p>For managing the system configuration, we use MIB Management Systems in some form or the other, which may be C-structure based or Yang Module for data modeling. Now there are entries in the MIB which are marked as read-only, or not accessible for the manager i.e. Northbound Interfaces. The operational data is often kept in such entries, like system up-time etc. </p>
  
  <p>So, is the filling of data by the Device itself in these fields implementation specific or does the device also use GET/SET/TEST type of mechanism to write to these MIB leafs?</p>