Simon Leinen wrote:
* Current Path MTU Discovery doesn't work reliably.
Please, let's wait for these more robust PMTUD mechanisms to be
universally deployed before trying to increase the Internet MTU.
I think this is the proper summary of where we are at: Trying to restore
one of the original design goals of ipv4 -- reliable internetworking of
different MTU sized networks.
But the waiting game doesnt work, act local and think global.
* IP assumes a consistent MTU within a logical subnet.
This seems to be a pretty fundamental assumption, and Iljitsch's
original mail suggests that we "fix" this.
This is an implementation detail, since local IP nodes have no
conception of remote IP nodes subnet detals.
