[Bro-Dev] TCP RTT estimation

[Vern Paxson]

> [Sender]        [Monitor]-------------(a)------>[Receiver]
> [Sender]<-------[Monitor]<--------ack-of-(a)----[Receiver]
> [Sender]--(b)-->[Monitor]
> 
> I thought that the acknowledgement number of the second component
> (ack-of-a) is always the same with the sequence number of the next
> segment (b). That is how I wanted to identify the segment (b).

No, instead seq-of-b will be seq-of-a's-ack *plus* the congestion window.
This is where it gets hard.

		Vern