Undestand the difference between Forwarding, Control and Management Plane
The best explanation about the difference of Forwarding, Control and Management Plane was found in the following blog:
Each of the many processes of a router or switch can be assigned to one of three conceptual planes of operation:
Forwarding Plane - Moves packets from input to output
Control Plane - Determines how packets should be forwarded
Management Plane - Methods of configuring the control plane (CLI, SNMP, etc.)
For example, you might SSH into the CLI of a router (the management plane) and configure EIGRP to exchange routing information with neighbors (the control plane), which gets installed into its local CEF table (the forwarding plane).
I hope this helps to understand more about these three important parts of network equipment.