[PATCH 0/3] babel: Add support for the RTT extension

[Toke Høiland-Jørgensen]

Juliusz Chroboczek <jch at irif.fr> writes:

>> My thinking was that filters may want to do something like:
>> 
>> if (metric == smoothed_metric)
>>   metric += 100; /* route is stable, we can apply our policy */
>> 
>> but I honestly don't know if that's useful for anything in reality :)
>
> I'm a little conflicted on this.  On the one hand, it's nice to give
> administrators more flexibility.  On the other hand, I want Babel to be as
> automated as possible: that's why Babel supported ETX from the outset, and
> that's why we developed RTT: so that Babel could adapt to a variety of
> real-world networks with minimal human intervention.
>
> Toke, what problem are you aiming to solve, and are we able to develop an
> algorithm that solves this problem without configuring policies
> manually?

Well, the immediate problem I'm trying to solve is to consolidate
Daniel's patch moving the route selection to Bird core with the RTT
extension patches (and associated metric smoothing). I don't really have
a particular use case in mind for exposing the metric, as indicated by
my comment above. It just occurred to me as something that *might* be
useful for someone :)

-Toke