Technical Summary
This document discusses issues with fragmentation in today's Internet.
The 16-bit IP identification field is not large enough to prevent
frequent incorrectly assembled IP fragments, and the TCP and
UDP checksums are insufficient to prevent the resulting corrupted
datagrams from being delivered to higher protocol layers.
Working Group Summary
This document is not the product of a WG, but has undergone
review in the Transport and Internet areas, in addition to an IETF
Last Call.
Protocol Quality
Prototype implementations (of an earlier draft) are available for
Linux, NetBSD and ns2
(http://www.psc.edu/~mathis/MTU/pmtud/index.html).
Lars Eggert has reviewed this spec for the IESG.