This is the unofficial status page for the Path MTU Discovery (pmtud) working group. For official IETF information please see the IETF charter page.
The goal of the PMTUD working group is to specify a robust method for determining the IP Maximum Transmission Unit supported over an end-to-end path, without relying on ICMP or other messages from the network. This method finds the proper MTU by starting a connection using relatively small packets (e.g. TCP segments) and searching upwards by probing with progressively larger test packets. This new method is not subject to the weakness in the current standards (RFC1191 and RFC1981) as documented in RFC2923.
Working Group Status:
The official WG charter and mailing list subscription page.
We are not planing to meet at IETF 66.
Unless we have missed something, the document is ready for WGLC.
The most recent IETF document is draft-ietf-pmtud-method-07.txt, [Local txt copy]
See below for earlier document versions.
For additional information check out these pages: Raising the Internet MTU, Pittsburgh Supercomputing Center, Network research at PSC, or Matt Mathis. Please send comments and suggestions to firstname.lastname@example.org.