Path MTU discovery solution space

Document Type Expired Internet-Draft (individual)
Last updated 2019-04-01 (latest revision 2018-09-28)
Stream (None)
Intended RFC status (None)
Expired & archived
pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Path MTU discovery has turned out to be a thorny problem that has haunted the Internet community for decades. Lately there has been some work both at the transport layer and at the network layer. This memo lists the solutions the author is aware of from the perspective of the network layer.


Ole Trøan (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)