SECTION 5.1
R1. What is meant by a control plane that is based on per-router control? In such cases, when we say the network control and data planes are implemented “monolithically,” what do we mean?
Explanation of Solution
Per-router control:
Per-router control means that router algorithm works in each and every router. The forwarding and routing functions are organized within each router. Each router is connected with the router component in order to communicate with the routing component of the other router. This router communication is used to compute the values for its forwarding table. Internet uses this approach for decades and the protocols like OSPF and BGP protocols are based on the per-router approach to control.
Monolithically implementation of network control and data planes:
The reason for monolithically implementation of network control and data planes is that each router works as an independent entity that implements its own control and data planes.
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