[pve-devel] Process to submit patches

[Dietmar Maurer]

> Linux does not clearly differentiate between L2 (interface) and L3 (IP) MTU, and
> also has a hidden 4 byte allowance on the interface MTU, making it confusing.
> When running QinQ the parent physical interface needs a MTU of at least 1504
> bytes (allows a 1508 byte frame), any sub vlan's and bridges will then inherit this
> MTU allowing for the "inner" tag to pass externally correctly.

And what are the correct settings for jumbo frames (MTU 9000)?