On 18 mei 2009, at 23:10, Joe Touch wrote:
if we have protocols that won't
function when the larger packet gets through, we have a problem. That
effectively means the MTU is the smaller number, i.e., that
compression
may save BW, but cannot support a larger MTU even if it is dominant.
Not necessarily. PMTUD for tunnels is just an optimization. There is
no reason why you couldn't take full size inner packets and
encapsulate them in an outer packet that is then fragmented.
Now doing that for 100% of the packets isn't great, but doing it for
5% of the packets could very well be the right choice.
