From: Andrew Lunn <andrew@lunn.ch>
To: The list for a Better Approach To Mobile Ad-hoc Networking
<b.a.t.m.a.n@lists.open-mesh.org>
Subject: Re: [B.A.T.M.A.N.] Maximum MTU (was Re: B.A.T.M.A.N. V outlook)
Date: Fri, 8 Jan 2010 19:18:08 +0100 [thread overview]
Message-ID: <20100108181808.GH7597@lunn.ch> (raw)
In-Reply-To: <4B47674B.6010508@gmail.com>
> Would you happen to know what the maximum MTU you could use on the
> wireless interface?
The 802.11 standard says the MSDU size is 2304 octets. How many IP
bytes you can fit into this depends on what encryption scheme you are
using, which adds different size headers.
However your hardware may not support this, since typically 1500 bytes
for Ethernet is what you need to work with. Also, as the packet gets
bigger, the more likely it is to get corrupted, and more likely that
the retry will also get corrupted etc... If you do increase the frame
size to its max, i would suggest enabling RTC/CTS, use 5GHz, and in a
mesh network of 2 nodes....
Andrew
prev parent reply other threads:[~2010-01-08 18:18 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-18 9:14 [B.A.T.M.A.N.] B.A.T.M.A.N. V outlook Marek Lindner
2009-12-18 16:53 ` Gus Wirth
2009-12-19 2:58 ` Marek Lindner
2010-01-07 7:44 ` Alex Morlang
2010-01-07 13:23 ` Marek Lindner
2010-01-07 16:10 ` Alex Morlang
2010-01-07 21:14 ` Simon Wunderlich
2010-01-07 22:39 ` Alex Morlang
2010-01-07 21:43 ` Linus Lüssing
2010-01-08 17:11 ` [B.A.T.M.A.N.] Maximum MTU (was Re: B.A.T.M.A.N. V outlook) Gus Wirth
2010-01-08 18:18 ` Andrew Lunn [this message]
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