[Babel-users] Diversity Routing for the Babel Routing Protocol

[Dave Taht]

On Wed, Jul 2, 2014 at 4:57 AM, Juliusz Chroboczek
<jch at pps.univ-paris-diderot.fr> wrote:
>> I see no good reason to merge the drafts: all current extensions are
>> logically independant, at least at the protocol level.
>
> I agree.  All the more so since the three extension drafts have different
> authors and are therefore written in very different styles, and it would
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

This is my point.

> therefore be a lot of work to combine them into a uniform document.
                                         ^^^^^^^^ for the authors, not
the readers

>> Regarding Z3 and RTT, you're right, it's not exactly clear.  The current
>> implementation of Z3 applies the diversity factor *after* all other costs
>> are computed, included the one induced by babel-rtt.
>
> Huh?  RTT and Z3 work at completely different places -- RTT tweaks the
> cost computation, while Z3 changes the announced metric.  In order to
> apply both, you just apply both, so you end up annoucing a metric that was
> tweaked by Z3 and was originally computed by RTT.  No trouble.

And we've just demonstrated that it is confusing, even to the authors
of the IDs.

> Now one could imagine two extensions that tweak the same part of the
> algorithm, in which case you'd need to think carefully about interaction,
> but that's not the case with the currently implemented four extensions.

I note that I was not suggesting combining the auth draft with these.

Secondly, I was also hoping for an extended example of why diversity helps
on longer paths as per my first email.

>
> -- Juliusz
>
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-- 
Dave Täht

NSFW: https://w2.eff.org/Censorship/Internet_censorship_bills/russell_0296_indecent.article