On 22/01/14 01:14, cmsv wrote:

On 01/21/2014 07:06 PM, Antonio Quartulli wrote:

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On 22/01/14 01:00, Antonio Quartulli wrote:

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On 21/01/14 21:01, cmsv wrote:

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Yes i understand that but it keeps on increasing. [ 28.600000] batman_adv: bat0: The MTU of interface adhoc0 is too small (1546) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.

Have you tried applying this patch before testing it once again?

http://git.open-mesh.org/batman-adv.git/commit/746d6436f88899a79c1cb3b27af06...

Actually this patch is already part of the batman-adv package in openwrt. Therefore the question turns in: did you update the batman-adv package before performing your second test?

the second test was done today and yesterday's i updated bataman-adv.

Yes but we are creating confusion.

In the second test you *enabled* network coding, therefore it is normal that the overhead grew up. This happens because NC uses more bytes for its header.

If you disable NC the suggested value should go back to 1532.

Cheers,