[net2-wg] Should CTP header have hop count?

[Rodrigo Fonseca]

>
> I don't think there is a way for the origin to estimate its distance
> from the root for this experiment.
>

Ah, so you are talking about adding hopcount to the control packets?

In that case, you are right, we don't know the distance from the root.
To know that, we would have to break the ETX field in two:
   * a) hopcount (each node in the tree adds one)
   * b) extra ETX (cumulative extra ETX per hop)
 such that a + b equals the current ETX.

For the data path, I don't think hopcount is necessary, or different
in practice from THL.

Rodrigo