Re: [B.A.T.M.A.N.] batman-adv 2014.0.0 released

[Antonio Quartulli <antonio@meshcoding.com>]

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On 22/01/14 01:29, cmsv wrote:
> 
> 
> On 01/21/2014 07:20 PM, Antonio Quartulli wrote:
>> On 22/01/14 01:14, cmsv wrote:
>>>
>>>
>>> On 01/21/2014 07:06 PM, Antonio Quartulli wrote:
>>>> On 22/01/14 01:00, Antonio Quartulli wrote:
>>>>> On 21/01/14 21:01, cmsv wrote:
>>>>>> 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/746d6436f88899a79c1cb3b27af0614510368bb7
>>>>>
>>>>
>>>> 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.
> Maybe. Lets see.
>>
>> 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.
> 
> 
> In both tests NC was enabled. I have NC enabled by default before and
> after the update.
> In fact is all tests NC is enabled by default and i undestand the
> increase to 1546 but to 1560 it surprised me.
> Should i still see the increase to 1560  or should it stayed at 1546
> which would be 1532 ?
> 
> 

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The first test you have performed was without the patch that fixes the
value reported in that message.



Now that the patch is applied you have to see 1560 when NC is enabled
and 1532 when it is disabled.


Can you confirm?


cheers,


-- 
Antonio Quartulli


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