[B.A.T.M.A.N.] Problem to find better Route

[gtolon@inti.gob.ar]

Hi. We are using batman-adv 2011.2.0 with Openwrt Backfire-rc6 on D-Link 
routers, and we're making some tests with iperf to measure bitrate 
capabilities between nodes. When we put three nodes aligned we notice 
that the obtained bitrate between the extreme nodes strongly depends on 
the batman path between them. To make it clear, we have:

A ---------- B ---------- C

With a dinstance of about 20 meters between A and B, and the same 
distance between B and C. The problem is that sometimes, A and C get 
connected directly in terms of batman-adv protocol (checked with batctl 
o), and when that happens, the bitrates are very poor (less than 1Mbps), 
like if B wasn't there. In fact we disconnected B and obtained very 
similar results.

Then we reduced tx power settings on A and C, forcing the B hop between 
them, and we got much better speeds (~20Mbps). We've read about ELP and 
think that maybe simple OGM messages are not good to measure link 
quility between A and C in this example, could that be the problem? In 
that case is there a way to fix this with actual batman-adv algorithms? 
Thanks in advance!

Gabriel


El 14/11/2011 08:00 a.m., b.a.t.m.a.n-request@lists.open-mesh.org escribió:
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>     1. Re: [PATCH] add make install (Sven Eckelmann)
>     2. Re: [PATCH] add make install (Sven Eckelmann)
>     3. Re: [PATCH] add make install (Alexey Fisher)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Mon, 14 Nov 2011 11:21:12 +0100
> From: Sven Eckelmann<sven@narfation.org>
> To: b.a.t.m.a.n@lists.open-mesh.org
> Cc: lindner_marek@yahoo.de
> Subject: Re: [B.A.T.M.A.N.] [PATCH] add make install
> Message-ID:<1428522.agqKBYpyMC@sven-laptop.home.narfation.org>
> Content-Type: text/plain; charset="iso-8859-1"
>
> On Monday 14 November 2011 10:38:07 Sven Eckelmann wrote:
>> On Monday 14 November 2011 10:11:32 Alexey Fisher wrote:
>>> Signed-off-by: Alexey Fisher<bug-track@fisher-privat.net>
>>> ---
>>>
>>>   Makefile |    3 +++
>>>   1 files changed, 3 insertions(+), 0 deletions(-)
> [...]
>> NAck: Sven Eckelmann<sven@narfation.org>
> And also "Nack" for not updating the README [1]
>
> Kind regards,
> 	Sven
>
> [1] http://www.open-mesh.org/wiki/open-mesh/Contribute#Submitting-patches
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> ------------------------------
>
> Message: 2
> Date: Mon, 14 Nov 2011 11:29:36 +0100
> From: Sven Eckelmann<sven@narfation.org>
> To: Alexey Fisher<bug-track@fisher-privat.net>
> Cc: b.a.t.m.a.n@lists.open-mesh.org, lindner_marek@yahoo.de
> Subject: Re: [B.A.T.M.A.N.] [PATCH] add make install
> Message-ID:<1956205.mQFSXpQuIf@sven-laptop.home.narfation.org>
> Content-Type: text/plain; charset="utf-8"
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> On Monday 14 November 2011 11:19:19 Alexey Fisher wrote:
> [...]
>> Thank you,
>> so you will send your patch? I prefer last version, to make testing easier.
> I personally don't care. Feel free to fix your patch and send a new version
> (but think about adding the ":" after "install" -- the character magically
> disappeared when I wrote the mail).
>
> And don't forget the documentation part as it is always hard to remember
> everything on the day the release is made, but easy when you just made the
> patch. :)
>
> Thanks,
> 	Sven
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> ------------------------------
>
> Message: 3
> Date: Mon, 14 Nov 2011 11:37:55 +0100
> From: Alexey Fisher<bug-track@fisher-privat.net>
> To: Sven Eckelmann<sven@narfation.org>
> Cc: b.a.t.m.a.n@lists.open-mesh.org, lindner_marek@yahoo.de
> Subject: Re: [B.A.T.M.A.N.] [PATCH] add make install
> Message-ID:<4EC0EF83.2060602@fisher-privat.net>
> Content-Type: text/plain; charset="utf-8"
>
> On 14.11.2011 11:29, Sven Eckelmann wrote:
>> On Monday 14 November 2011 11:19:19 Alexey Fisher wrote:
>> [...]
>>> Thank you,
>>> so you will send your patch? I prefer last version, to make testing easier.
>> I personally don't care. Feel free to fix your patch and send a new version
>> (but think about adding the ":" after "install" -- the character magically
>> disappeared when I wrote the mail).
>>
>> And don't forget the documentation part as it is always hard to remember
>> everything on the day the release is made, but easy when you just made the
>> patch. :)
> Corrected.
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