Re: [manet] MANET protocols in the community network as Funkfeuer.

[Thomas Heide Clausen <[e-mail]>]

On Oct 14, 2012, at 10:23 , Henning Rogge <[e-mail]> wrote:

> On Sun, Oct 14, 2012 at 9:46 AM, Thomas Heide Clausen
> <[e-mail]> wrote:
>> 
>> On Oct 13, 2012, at 23:18 , Henning Rogge <[e-mail]> wrote:
>> 
>>> Interesting question... the last time we worked on the draft the
>>> discussion bogged down with the question if this is the "right way" to
>>> do ETX.
>>> 
>>> Maybe a split would be a good idea, we could have an informal document
>>> specifying the strategy we are using at Freifunk/Funkfeuer for ETX.
>>> And then we could work on how to transform this into a good OLSRv2
>>> metric.
>>> 
>> 
>> I do not know if a split is the right thing to do - then again, I do not know that it isn't either.
> 
> Maybe instead of splitting it into two Drafts, splitting the draft
> into two parts... one explaining what is used in the
> Freifunk/Funkfeuer networks currently and another one that suggests a
> way to use this strategy for OLSRv2 metrics.
> 
>> I think that what the previous version of the I-D failed to do, and what caused the bogged-down discussion, was to frame properly what the content was about.
>> 
>> I think that producing an informational RFC saying something of the kind:
>> 
>>        "This is one way of doing ETX, specifically the one way that has shown to work
>>          well in a large deployment in continuous operation. It is probably not the only way,
>>          and perhaps not the best way, of doing ETX, but this is one way that's proven to
>>          work well"
>> 
>> Would be quite useful.
> 
> Another reason why it bogged down was the introduction of the new TLV
> to have a "out-of-band" channel between both end of the link for the
> routing metric calculation. The current Freifunk/Funkfeuer metric
> cannot be done without one.
> 

Yes, but that would (IMO) be fair enough in the "this is one way of doing ETX that we've got operational experience with as working - but, not the only one".

The only snag would be that care should be made that the defined TLV would be "flexible" enough to support other such signaling, but I do not see that as a huge problem....

Thomas

> Henning Rogge
> 
> -- 
> Steven Hawkings about cosmic inflation: "An increase of billions of
> billions of percent in a tiny fraction of a second. Of course, that
> was before the present government."