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Date: Thu, 23 May 2013 10:51:43 +0200
From: Antonio Quartulli <ordex@autistici.org>
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Subject: Re: [B.A.T.M.A.N.] [PATCHv3 0/3] Fragmentation version 2
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Cc: Martin =?utf-8?Q?Hundeb=C3=B8ll?= <martin@hundeboll.net>


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On Tue, May 21, 2013 at 12:48:16PM +0200, Martin Hundeb=C3=B8ll wrote:
> These are the second revision of a few patches to remove the current frag=
mentation code and replace it with a new version that supports more packet =
types and more fragments per packet, thus allowing bigger payloads.
>=20
> The patches are based on current master and are meant for the next big bu=
mp in compat number. Revision 3 is changed according to Antonios review.

Side note:

While testing aligned vs unaligned memory I saw that fragmentation raised I=
CMP
latency (tested by means of ping) from 1msec to 20msecs.

Test has been done between two neighbouring nodes and one of them was confi=
gured
as follows:

- mesh0 mtu =3D 1000
- bat0 mtu =3D 1500
- mesh0 is enslaved in bat0
- ping packet was 1408 bytes big


Conclusion is: fragmentation worked as expected (at least in this case :-))=
, so
batman-adv should also be able to work over Bluetooth as well, but it is
recommended to avoid it :D


Thanks a lot for your work Martin!

Cheers,

--=20
Antonio Quartulli

=2E.each of us alone is worth nothing..
Ernesto "Che" Guevara

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