What is the range of the window sizes advertised by the receiver? How does the window size vary during the lifetime of the TCP connection?

Question

What will be an ideal response?

Answer 1

The observed smallest advertised window size of the receiver is 5792 bytes (Frame 4), and the largest window size is 63712 bytes (Frame 82)
```
No. Time Source Destination Protocol Info
4 0.000565 10.0.5.22 10.0.5.11 TCP 4444 > 3117

[SYN, ACK] Seq=305997827 Ack=339274349 Win=5792 Len=0

82 0.058431 10.0.5.22 10.0.5.11 TCP 4444 > 3117

[ACK] Seq=305997828 Ack=339314589 Win=63712 Len=0
```
The windows size grows slowly and then rapidly increases.
The receiver’s flow control window is the maximum number of bytes that a receiver can accept. The
congestion window size depends on the network condition. During slow start phase, the window size will increase one segment size whenever it receives an ACK after the congestion window size. When a timeout occurs, the congestion window is reduced to one maximum segment size and everything starts over. After the congestion window size grows larger than the threshold, it will only increase by 1 segment size for each congestion window of data transmitted.