Accommodating a Maximum Transit Unit/Maximum Receive Unit (MTU/MRU) Greater Than 1492 in the Point-to-Point Protocol over Ethernet (PPPoE)
P. Arberg, D. Kourkouzelis, M. Duckett, T. Anschutz, J. Moisand · 2006
As of this writing, no current IEEE standard supports the use of "jumbo frames" (MTU greater than 1500).Although this document contains recommended mechanisms to detect problems in the path, interoperability and reliability of non-standard extensions cannot be assured.Both implementors and users of the protocol described here should exercise caution in its use.