[Cerowrt-devel] [Babel-users] switching cerowrt to quagga-babeld issues
L. Aaron Kaplan
aaron at lo-res.org
Mon Jul 2 12:16:27 EDT 2012
On Jul 2, 2012, at 5:36 PM, Dave Taht wrote:
> How goeth ipv6?
>> The project may get more options, if we drive the prototype towards a finished deliverable.
> I am very enthusiastic about babel's new authenticated mesh routing!
> It is also my opinion that without a decent drop and packet mixing
> strategy that mesh networks will perform badly under load. I'm hoping
> that fq_codel does well, although it seems very likely that an
> aggregation aware and fq_codel-like strategy needs to move into the
> mac80211 layer, which is perhaps years worth of work.
Or have better cross-layer communication - see below....
> What would a deliverable look like? What would interest people enough
> to get some good data, papers written, progress made, more
> users/developers and cash in the door?
I would like to point you towards a nice feature that Henning is currently implementing: DLEP - a (mostly routing protocol independent) framework for communicating settings and metrics between a radio and a routing daemon.
When routing devices rely on modems to effect communications over
wireless links, they need timely and accurate knowledge of the
characteristics of the link (speed, state, etc.) in order to make
forwarding decisions. In mobile or other environments where these
characteristics change frequently, manual configurations or the
inference of state through routing or transport protocols does not
allow the router to make the best decisions. A bidirectional, event-
driven communication channel between the router and the modem is
More info and code samples on the olsr.org git repo. I'd like to also encourage Babel coders to take a look at it and collectively improve this.
It will be - as Dave already mentioned - anyway a hard problem to have this working for many radios in a standardized way, so it would really be helpful if different mesh developers for once could work *together* on some general feature which improves everybody's metrics.
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