What is meant by destination-based forwarding? How does this differ from generalized forwarding (assuming you’ve read Section 4.4, which of the two approaches are adopted by Software-Defined Networking)?

Destination based forwarding is where forwarding of packets is based on the destination IP address while in generalized forwarding, forwards are based on  any set of header field values

Explanation:

Destination based forwarding is the most common type of forwarding in which each message that is sent contains a destination IP address and all forwarding decision process are made based on this address (independent of the original sender).

Destination based forwarding is where forwarding of packets is based on the destination IP address while in generalized forwarding, forwards are based on  any set of header field values.

Destination based forwarding is adopted by Software-Defined Networking,

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