we want to observe the memory utilization of several switches and routers in cacti. While implementing the OIDs of process and I/O memory in cacti we found out that especially the I/O memory is placed in different memory instances on different switches/routers.
Does anybody know the reason for this differences and if there is any documentation about using memory instances for I/O on the different switch and router models?
We also saw two 7206 routers running different feature sets using different memory instances:
Router 1: Processor(1), I/O(2), Transient(11)
Router 2: Processor(1), I/O(3)
Many thanks in advance,