Which congestion control mechanism involves routers sending signals to the sender to notify about network congestion?

  • Congestion Avoidance
  • Error Control
  • Explicit Congestion Notification (ECN)
  • Flow Control
Explicit Congestion Notification (ECN) is a congestion control mechanism where routers send signals to the sender to notify about network congestion. This allows the sender to adjust its transmission rate, helping to prevent network congestion.
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