Marek Lindner wrote:
> On Saturday 14 August 2010 23:08:05 Sven Eckelmann wrote:
> > The user usually sets a mtu by hand and don't want to have software to
> > change it automatically. This is only needed when we must reduce the mtu
> > due to a low mtu of an active slave device, but we should not increase
> > it when any other action is made on the system related to the used
> > interfaces.
> 
> I fear that this might lead to a strange user experience. If the mtu on
> batX wasn't set explicitely but the mtu of an interface used by batman is
> increased while batman uses it the user has to know that he/she now needs
> to manually modify the batX mtu before it becomes effective.
> 
> What about a flag which remembers whether the mtu on batX was modified by
> the user. If so, batman-adv does not increase the mtu otherwise we keep
> the current behaviour ?

Ok, then drop that patch. The user seems to be familiar with that behavior 
because bridge handles it the same way.

Best regards,
        Sven

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