RED (Random Early Detection)

Random Early Detection (RED) is a network congestion control technique used in routers to manage data flow. When the network is under heavy traffic, RED randomly drops packets before the queue becomes full, rather than waiting for a complete backlog. By dropping packets early, RED encourages the sender to slow down its transmission, reducing congestion. This proactive approach helps maintain smooth communication and improves overall network performance, allowing for better service quality without overwhelming the system. In essence, RED balances the flow of data to prevent traffic jams in digital communication.