Traditional Network router Router can be partitioned into control and data plane Management plane/configuration Control plane /Decision: OSPF(Open Shortest Path First) Data plane /Forwarding Adjacent Router Router Adjacent Router Management/Policy plane Configuration/CLI/GUI Routing Control plane Control plane Staticroutes Control plane I OSPF Link state IP routing table database Switchi Data plane Data plane Data plane Forwarding tableTraditional Network Router • Router can be partitioned into control and data plane • Management plane/ configuration • Control plane / Decision: OSPF (Open Shortest Path First) • Data plane / Forwarding Adjacent Router Router Management/Policy plane Configuration / CLI / GUI Control plane Static routes OSPF Neighbor table Link state database IP routing table Forwarding table Data plane Data plane Control plane OSPF Adjacent Router Data plane Control plane OSPF Routing Switching