On 2/8/2016 12:44 PM, Phillip Hallam-Baker wrote: > Seems to me that we might be misreading the original proposal. There > are two ways to read it: > > 1) In future all Internet routing gear MUST NOT fragment IP packets. IPv6 is that future, FWIW. > 2) Take fragmentation out of the endpoint stack. > > It seems to me that these are very different proposals. I fully > endorse the first if we add the caveat 'except to support legacy, non > jumbo frame capable links'. Where legacy == IPv4, yes. But even then, IPv4 fragmentation except at the endpoints is already somewhat deprecated based on IP ID values (see RFC 6864). Joe