The role should give an error in the following cases:
A bridge's parent has a lower MTU than the bridge
A bridge's port has a lower MTU than the bridge
In case a physical port doesn't have an MTU set explicitly but is connected to at least one bridge, then I propose that it should get the maximum MTU of those bridges.
The role should give an error in the following cases:
In case a physical port doesn't have an MTU set explicitly but is connected to at least one bridge, then I propose that it should get the maximum MTU of those bridges.