Control Plane - Responsible to exchange topology information with other routers and build Routing Information Base based on IGP or EGP. Forwarding Plane - Responsible to classify and forward packets based on Control Plane logic. Management Plane - Provides a single entry point to the system for user configuration, handles user queries, and performs operational tasks on all management, control, and data plane nodes.
You can configure Proxy Address Resolution Protocol (ARP) to enable a switch to respond to ARP queries for network addresses by offering its own Ethernet media access control (MAC) address. With proxy ARP enabled, the switch captures and routes traffic to the intended destination. Before getting into details of proxy ARP, we shall start with ARP.