[c-nsp] PPPoE, MPMRRU and interface MTU

[John Edwards]

Andre Beck wrote:

>Despite the fact that it is hard (or impossible) to achieve an MTU 1500
>preserving path using MP on IOS platforms (at least those I've tested),
>this is not actually messing, it is IMO a perfectly clean and easy
>solution, as MP has everything to do it. 
>

If you're going to burn CPU on the router fragmenting the packets 
anyway, why not just clear-df on inbound, and spare the router at the 
other end the load of multilink reassembly?

John Edwards