W9L4 Congestion Control

Question 1

Why is TCP network friendly?

Answer 1

Avoids overwhelming the networks ability to forward info

Tries to be fair to others using the network at the same time

Question 2

Sender-side limit: Congestion Window (cwnd)

Answer 2

A number representing the amount of data the sender can transmit into the network before receiving an acknowledgement
This info is never sent across the network

Question 3

Receiver-side limit: Receiver Window (rwnd)

Answer 3

The receiver’s advertised window ie the amount of data the receiver can hold in its buffer before it must process the data
This info is sent across the network

Question 4

What is TCP slow start?

Answer 4

An algorithm which balances the speed of a network connection. Slow start gradually increases the amount of data transmitted until it finds the network’s maximum carrying capacity.

Question 5

A number representing the amount of data the sender can transmit into the network before receiving an acknowledgement
This info is never sent across the network

Answer 5

Sender-side limit: Congestion Window (cwnd)

Question 6

The receiver’s advertised window ie the amount of data the receiver can hold in its buffer before it must process the data
This info is sent across the network

Answer 6

Receiver-side limit: Receiver Window (rwnd)

Question 7

An algorithm which balances the speed of a network connection. Slow start gradually increases the amount of data transmitted until it finds the network’s maximum carrying capacity.

Answer 7

What is TCP slow start?