NSAP (Network Service Access Point)

A Network Service Access Point (NSAP) is a unique identifier used in networking to specify a specific location or endpoint within a network layer, facilitating communication between different network devices. Think of it as an address that helps data find its way to the correct destination within a complex network, similar to how a street address guides mail delivery. NSAPs are used in certain protocols, such as OSI, to establish and manage connections, ensuring that data reaches the right device or service accurately and efficiently.