Circuit Switching
Circuit switching is a network communication method that establishes a dedicated physical or logical connection (circuit) between two endpoints for the entire duration of a communication session. It reserves bandwidth and resources exclusively for that connection, ensuring consistent performance and minimal latency. This contrasts with packet switching, where data is broken into packets that travel independently through the network.
Developers should understand circuit switching when working with legacy telecommunication systems, real-time applications like voice calls or video conferencing, or in contexts requiring guaranteed bandwidth and low jitter. It's particularly relevant for designing or maintaining traditional telephone networks (PSTN), some private branch exchange (PBX) systems, and in scenarios where connection-oriented reliability is prioritized over resource efficiency.