TCP Congestion Control

These flashcards cover key vocabulary and concepts related to TCP Congestion Control, aiding in understanding the lecture material.

Congestion Control

The management of data transfer in networks to prevent congestion and ensure efficient usage of bandwidth.

AIMD

Additive Increase Multiplicative Decrease; an algorithm that increases the sending rate additively until loss is detected, then decreases it multiplicatively.

Congestion Window (cwnd)

A TCP state variable that limits the amount of data the sender can send before receiving an acknowledgment.

Slow Start

A phase of TCP congestion control where the sending rate increases exponentially until a loss event occurs.

Congestion Avoidance

A phase that follows Slow Start in TCP where the sending rate increases linearly.

TCP Reno

A variant of TCP that implements fast recovery to improve congestion control after packet loss.

TCP Tahoe

A version of TCP that does not implement fast recovery; it resets the congestion window to one maximum segment size upon packet loss.

Round Trip Time (RTT)

The time it takes for a signal to go to a destination and back; used to measure latency in network communications.

ECN (Explicit Congestion Notification)

A mechanism to indicate network congestion by marking packets instead of dropping them.

Fairness in TCP

The principle that multiple TCP sessions sharing a bottleneck link should have equal average rates.